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How to add an icon to an accordion menu

I've implemented an accordion that works fine, but I tried to add a + to it to open the shutter and a - to close it when it is unfolded.
I could not find a way to do so.
Here is my code:
$("#faq_slide .answer").not(":first").hide();
$("#faq_slide .question").click(function() {
if ($(this).next(".answer").is(":visible")) {
$(this).next(".answer").slideUp(300);
} else {
$(this).next(".answer").slideDown(300).siblings(".answer").slideUp(300);
}
});
#import url("https://fonts.googleapis.com/css2?family=Inter:wght#400;700&display=swap");
body {
font-family: "Inter", sans-serif;
padding: 20px;
}
.question {
color: #555;
padding: 15px;
font-weight: 700;
font-size: 16px;
border: 1px solid #ccc;
background: #efefef;
}
.question:hover {
cursor: pointer;
}
.answer {
color: #777;
padding: 15px;
font-weight: 400;
font-size: 13px;
border: 1px solid #ccc;
border-top: none;
}
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js'></script>
<div id="faq_slide">
<div class="question">First Question</div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
<div class="question">Second Question</div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
<div class="question">Third Question</div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
</div>

You can add Span tag inside your question div and give it an absolute position and change its text content depending on your click event
Here is an example how to do that:
$("#faq_slide .answer").not(":first").hide();
$("#faq_slide .question").click(function() {
if ($(this).next(".answer").is(":visible")) {
$(this).next(".answer").slideUp(300);
$(this).find('span').text('+');
} else {
$(this).next(".answer").slideDown(300).siblings(".answer").slideUp(300);
// Add - when its open and + for other Siblings
$(this).find('span').text('-');
$(this).siblings().find('span').text('+');
}
});
#import url("https://fonts.googleapis.com/css2?family=Inter:wght#400;700&display=swap");
body {
font-family: "Inter", sans-serif;
padding: 20px;
}
.question {
color: #555;
padding: 15px;
font-weight: 700;
font-size: 16px;
border: 1px solid #ccc;
background: #efefef;
position: relative;
}
.question:hover {
cursor: pointer;
}
.answer {
color: #777;
padding: 15px;
font-weight: 400;
font-size: 13px;
border: 1px solid #ccc;
border-top: none;
}
.symbol {
position: absolute;
/* Top Right Bottom Left */
inset: auto 1rem auto auto;
}
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js'></script>
<div id="faq_slide">
<div class="question">First Question<span class="symbol">-</span></div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
<div class="question">Second Question<span class="symbol">+</span></div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
<div class="question">Third Question.<span class="symbol">+</span></div>
<div class="answer">Lorem ipsum dolor sit amet</div>
</div>

you may add a toggle class 'active' for the element with class 'question' and add pseudo-element style :before content: "+" not-active and "-" for active class
$("#faq_slide .answer").not(":first").hide();
$("#faq_slide .question:first-child").addClass('active');
$("#faq_slide .question").click(function() {
$(this).siblings('.question').removeClass('active')
$(this).toggleClass('active');
if ($(this).next(".answer").is(":visible")) {
$(this).next(".answer").slideUp(300);
} else {
$(this).next(".answer").slideDown(300).siblings(".answer").slideUp(300);
}
});
#import url("https://fonts.googleapis.com/css2?family=Inter:wght#400;700&display=swap");
body {
font-family: "Inter", sans-serif;
padding: 20px;
}
.question {
color: #555;
padding: 15px;
font-weight: 700;
font-size: 16px;
border: 1px solid #ccc;
background: #efefef;
position: relative;
}
.question:hover {
cursor: pointer;
}
.answer {
color: #777;
padding: 15px;
font-weight: 400;
font-size: 13px;
border: 1px solid #ccc;
border-top: none;
}
.question::after{
content: '+';
display:inline-block;
width: 15px;
height: 15px;
position: absolute;
right: 10px;
transition: all 0.5s ease;
}
.question.active::after{
content: '-';
}
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css">
<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js'></script>
<div id="faq_slide">
<div class="question">First Question</div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
<div class="question">Second Question</div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
<div class="question">Third Question</div>
<div class="answer">Lorem ipsum dolor sit amet.</div>
</div>

offsetting anchor link with a sticky header

i have a navbar and a sticky header which you can check it out in snippet. Now if i click on my anchors, I get scrolled down to the right position, even the header doesn't overlap the text of the div except in one strange case.
the problem is when i'm in the #Home section, after clicking on any anchors ( no matter #AboutMe or #Skills), it sends me to the right position but the header overlaps the text a little bit which is not what i want.
so when i'm in #AboutMe section and click on #Skills anchor for example, nothing strange happens and everything is alright but the problem is when you are in the #Home section and you wanna get to another sections by clicking on their anchors, it sends you a little bit lower than where it should get you.
to find out what i mean exactly, you need to click on #AboutMe anchor twice when you are in #Home section ( same as #Skills anchor) then you will find out on first attempt, it's not doing the job properly and you need to click on that specific anchor, twice to get the result you're looking for.
NOTE: ignore other styles like texts positioning or images which are not really important here and the snippet i've provided is enough to show you what my issue is.
has anybody ever faced this strange issue?
JS fiddle link: https://jsfiddle.net/f715j3qh/120/
$(document).ready(function () {
var aboveHeight = $('header').height();
$(window).scroll(function () {
if ($(window).scrollTop() > aboveHeight) {
$('nav').addClass('fixed').css('top', '0').next().css('padding-top', '70px');
} else {
$('nav').removeClass('fixed').next().css('padding-top', '0');
}
});
});
.header {
text-align: center;
}
.header-top {
font-size: 3.5rem;
height: 210px;
background: #28223f;
}
.header-top-p {
padding: 40px 0 30px;
}
.header p{
color:#a8c6de;
letter-spacing:1px;
}
#header-nav {
background-color: yellow;
color: black;
justify-content: space-between;
height: 70px;
background-image: yellow;
width: 100%;
margin: 0 auto;
align-items: center;
z-index: 10000;
}
nav .mainMenu {
list-style: none;
display: flex;
}
#header-nav ul li {
position: relative;
margin: 0 auto;
}
#header-nav ul li.active {
opacity: 1;
text-shadow: -3px 3px 7px #4d4d00;
}
nav .mainMenu li a {
font-weight: bold;
color: black;
padding: 21px;
display: inline-block;
text-decoration: none;
font-size: 2rem;
}
.anchor {
display: block;
height: 70px;
margin-top: -70px;
visibility: hidden;
}
.fixed {
position: fixed;
top: 0;
z-index: 1;
}
#Matin-Pic {
background: #28223f;
min-height: 63vh;
}
.Matin-Picture {
margin: 15px auto;
color: #b3b8cd;
width: 380px;
background: brown;
text-align: center;
border-radius: 5px;
box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.75);
}
.cover-photo {
background: lightblue;
height: 130px;
width: 100%;
border-radius: 5px 5px 0 0;
}
.non-profile {
height: 130px;
width: 100%;
}
.non-profile img {
height: 160px;
width: 175px;
margin: auto 150px;
display: flex;
}
.profile {
height: 140px;
width: 105px;
border-radius: 50%;
border: 1px solid #1f1a32;
padding: 7px;
background: #292343;
margin: -70px 0 0 203px;
}
.profile-name {
font-size: 25px;
font-weight: bold;
margin: 25px 0 0 -100px;
}
.about {
margin-top: 35px;
line-height: 25px;
font-size: 1.7rem;
}
#Matin-Pic button {
margin: 15px 10px 30px;
}
.msg-btn, .follow-btn {
border-radius: 3px;
cursor: pointer;
background: lightblue;
color: brown;
border: 1px solid lightblue;
padding: 10px 25px;
}
.follow-btn {
background: transparent;
color: lightblue;
}
#Matin-Pic i {
font-size: 20px;
padding-left: 20px;
margin-bottom: 20px;
cursor: pointer;
color: lightblue !important;
}
.section-1 {
background: #fff;
height: auto;
width: 100%;
}
.section-1 img {
margin-top: 160px;
border-radius: 10px;
width: 100%;
height: auto;
}
#AboutMe-image img:nth-child(1) {
box-shadow: -5px -5px 10px blue;
display: block;
}
#AboutMe-image img:nth-child(2) {
display: none;
box-shadow: -5px 5px 10px blue;
}
.section-1-image img {
display: none;
box-shadow: 5px 5px 10px blue;
}
.section-1 h3 {
font-style: oblique;
font-weight: bold;
font-size: 3rem;
margin: 60px auto;
color: blue;
}
.section-1 p {
color: black;
}
.section-1 p:nth-child(2) {
margin: 0 auto 15px;
font-size: 1.6rem;
}
.section-1 p:nth-child(3) {
font-size: 1.4rem;
line-height: 2.5;
}
#AboutMe {
margin-bottom: 110px;
min-height: 78vh;
}
#AboutMe-Text {
padding-right: 50px;
}
#Skills {
background: rgba(168, 198, 222, 0.2);
margin: 0 auto;
border-radius: 300px 15px;
}
.section-2 ul {
list-style: none;
text-align: center;
}
.section-2 ul li {
margin: 52px auto 0;
font-size: 1.6rem;
color: black;
}
.section-2 ul li:first-child {
margin-top: 30px;
}
.section-2 ul li:last-child {
margin-bottom: 52px;
}
.section-2 img {
margin: 32px auto;
max-width: 220px;
height: 540px;
border-radius: 7px;
}
.main-titles {
text-align: center;
font-weight: bold;
color: black;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<section id="Home">
<div class="container-fluid">
<div class="row">
<header class="header header-top">
<div class="header-top-p col-lg-4 col-md-4 col-sm-4 hidden-xs">
<p>text</p>
</div>
<div class="header-top-p col-lg-4 col-md-4 col-sm-4 hidden-xs">
<p>text</p>
</div>
</header>
<nav id="header-nav">
<ul class="mainMenu">
<li class="Home">Home</li>
<li class="AboutMe">About Me</li>
<li class="Skills">Skills</li>
</ul>
</nav>
</div>
</div>
</section>
<!--end Home section and header-->
<!-- ***** card profile ***** -->
<div id="M-Pic" class="container-fluid">
<div class="M-Picture">
<div class="cover-photo">
<div class="non-profile">
<img src="Content/images/logo.png">
</div>
<img src="Content/images/MPic.jpg"
class="profile">
</div>
<div class="profile-name">text</div>
<p class="about">some text here<br>some text</p>
<button class="msg-btn" onclick="#">send</button>
<button onclick="#" class="follow-btn">button1
</button>
<div>
<a href="#"><i
class="fab fa-linkedin"></i></a>
<a href="#"><i
class="fab fa-instagram"></i></a>
<i class="fab fa-github"></i>
<i class="fab fa-twitter"></i>
</div>
</div>
</div>
<span class="anchor" id="AboutMe-anchor"></span>
<section id="AboutMe" style="padding-top:3rem;">
<div class="container">
<div class="row">
<div class="section-1">
<div id="AboutMe-image" class="col-md-5 col-sm-5 slide-in fade-in">
<img src="Content/images/bg2-com2.jpg" alt="an image" width="1280" height="850">
<img alt="an image" src="Content/images/bg2-com5.jpeg" width="1000" height="800">
</div>
<div id="AboutMe-Text" class="col-md-7 col-sm-7 slide-in fade-in">
<h3>some text here</h3>
<p>some text here</p>
<p>some text here<br> some text here
<br>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostr
<br>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor <br>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostr.<br>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed <br>
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor <br>
</p>
</div>
<div class="col-xs-12 section-1-image">
<!-- <img alt="an image" src="Content/images/bg2-com.jpg" width="598" height="399" class="fade-in slide-in"> -->
</div>
</div>
</div>
</div>
</section>
<!--end AboutMe-->
<!-- ***** skills ***** -->
<span class="anchor" id="Skills-anchor"></span>
<section id="Skills" style="padding-top:1rem;">
<div class="container-fluid">
<div class="row">
<div class="section-2">
<h2 class="main-titles fade-in-main-titles slide-in-main-titles">skills</h2>
<div class="col-lg-5 col-md-6 col-sm-6 col-xs-12 section-2-left">
<ul>
<li>item1</li>
<li>item2</li>
<li>item3</li>
<li>item4</li>
<li>item5</li>
<li>item6</li>
<li>item7</li>
<li>item8</li>
</ul>
</div>
<div class="col-lg-2 hidden-md hidden-sm hidden-xs">
<img src="Content/images/MySkills2.gif"
class="img-responsive center-block fade-in-skills slide-in-skills">
</div>
<div class="col-lg-5 col-md-6 col-sm-6 col-xs-12 section-2-right">
<ul>
<li>item9</li>
<li>item10</li>
<li>item11</li>
<li>item12</li>
<li>item13</li>
<li>item14</li>
<li>item15</li>
<li>item16</li>
</ul>
</div>
</div>
</div>
</div>
</section>

Scroll button behavior

The button scrolls past the content I want to be shown.
I want the "About Us" section to be showed to the display of user (100vh), but it just scrolls past that.
Here's the code:
function smoothScroll(target, duration) {
var target = document.querySelector(target);
var targetPosition = target.getBoundingClientRect().top;
var startPosition = window.pageYOffset;
var distance = targetPosition - startPosition;
var startTime = null;
function animation(currentTime) {
if (startTime === null) startTime = currentTime;
var timeElapsed = currentTime - startTime;
var run = ease(timeElapsed, startPosition, distance, duration);
window.scrollTo(0, run);
if (timeElapsed < duration) requestAnimationFrame(animation);
}
function ease(t, b, c, d) {
t /= d / 2;
if (t < 1) return (c / 2) * t * t + b;
t--;
return (-c / 2) * (t * (t - 2) - 1) + b;
}
requestAnimationFrame(animation);
}
var btn = document.querySelector(".btn");
btn.addEventListener("click", function () {
smoothScroll(".text-slider", 600);
});
.hero {
display: flex;
width: 90%;
margin: auto;
height: 100vh;
min-height: 100vh;
align-items: center;
text-align: center;
background-image: url(/img/pexels-tranmautritam-326501.jpg);
background-size: cover;
background-attachment: fixed;
justify-content: center;
}
.introduction {
flex: 1;
height: 30%;
}
.welcometxt h1 {
font-size: 17px;
color: white;
font-weight: 100;
letter-spacing: 12px;
}
.intro-text h1 {
font-size: 44px;
font-weight: 700;
color: white;
/* background: linear-gradient(to left, rgb(184, 184, 184), #ffffff); */
/* -webkit-background-clip: text;
-webkit-text-fill-color: transparent; */
}
.intro-text p {
font-size: 18px;
margin-top: 5px;
color: white;
}
.cta {
padding: 50px 0px 0px 0px;
}
.btn {
background-color: white;
width: 150px;
height: 50px;
cursor: pointer;
font-size: 16px;
font-weight: 400;
letter-spacing: 1px;
color: black;
border: none;
border-radius: 40px;
transition: all 0.6s ease;
box-shadow: 5px 7px 18px rgb(0, 0, 0, 0.4);
}
.btn:hover {
background-color: black;
color: white;
box-shadow: 5px 7px 18px rgb(0, 0, 0, 0.8);
}
.text-slider {
width: 70%;
height: 90vh;
margin: 100px auto;
position: relative;
text-align: center;
align-items: center;
}
.carousel {
height: 70vh;
overflow: hidden;
}
.slider {
height: 100%;
display: flex;
width: 400%;
transition: all 0.3s;
}
.slider p {
width: 70%;
font-size: 17px;
}
.slider section {
flex-basis: 100%;
display: flex;
justify-content: center;
align-items: center;
}
.controls .arrow {
position: absolute;
top: 50%;
transform: translateY(-50%);
cursor: pointer;
}
.controls .arrow i {
font-size: 60px;
}
.arrow.left {
left: 10px;
}
.arrow.right {
right: 10px;
}
.nextpage-arrow i{
font-size: 60px;
cursor: pointer;
}
<section class="hero">
<div class="introduction">
<div class="welcometxt">
<h1>
WELLCOME
</h1>
</div>
<div class="intro-text">
<h1>Optimal Solution for Your Product</h1>
<p>
Ensuring optimal solution for your
Quality Management.
</p>
</div>
<div class="cta">
<button class="btn">Click for more</button>
</div>
</div>
</section>
<div class="text-slider" id="text-slider">
<h1>About Us</h1>
<div class="carousel">
<div class="slider">
<section>
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Aliquam, fugiat.</p>
</section>
<section>
<p>Lorem ipsum, dolor sit amet consectetur adipisicing elit. Repellat, commodi?</p>
</section>
<section>
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Eligendi, velit.</p>
</section>
<section>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Quaerat, aperiam.</p>
</section>
</div>
<div class="controls">
<span class="arrow left">
<i class="material-icons">
keyboard_arrow_left
</i>
</span>
<span class="arrow right">
<i class="material-icons">
keyboard_arrow_right
</i>
</span>
</div>
</div>
<div class="nextpage-arrow">
<span class="text-slider-btn">
<i class="material-icons">
keyboard_arrow_down
</i>
</span>
</div>
</div>
As shown in the picture, it goes past "About Us" h1.
I want the page to stop at "About Us", and not go past it.
If you need more code, or more explanation please comment and I'll try my best!
Thank you in advance.
UPDATE (GIF):

That code that you use for smooth scroll is unnecessary. You should better use Element.scrollIntoView()
Element.scrollIntoView()
The Element interface's scrollIntoView() method scrolls the element's
parent container such that the element on which scrollIntoView() is
called is visible to the user. MDN - Element.scrollIntoView()
Use the following code should you want to scroll to About Us section when you click on Click for more button.
// 'Click for more' button
const button = document.querySelector("#more-info")
button.onclick = () => {
document.querySelector("#text-slider")
.scrollIntoView({block: "start", behavior: "smooth"})
}
const button = document.querySelector("#more-info")
button.onclick = () => {
document.querySelector("#text-slider")
.scrollIntoView({block: "start", behavior: "smooth"})
}
.hero {
display: flex;
width: 90%;
margin: auto;
height: 100vh;
min-height: 100vh;
align-items: center;
text-align: center;
background: #000;
background-image: url(/img/pexels-tranmautritam-326501.jpg);
background-size: cover;
background-attachment: fixed;
justify-content: center;
}
.introduction {
flex: 1;
height: 30%;
}
.welcometxt h1 {
font-size: 17px;
color: white;
font-weight: 100;
letter-spacing: 12px;
}
.intro-text h1 {
font-size: 44px;
font-weight: 700;
color: white;
/* background: linear-gradient(to left, rgb(184, 184, 184), #ffffff); */
/* -webkit-background-clip: text;
-webkit-text-fill-color: transparent; */
}
.intro-text p {
font-size: 18px;
margin-top: 5px;
color: white;
}
.cta {
padding: 50px 0px 0px 0px;
}
.btn {
background-color: white;
width: 150px;
height: 50px;
cursor: pointer;
font-size: 16px;
font-weight: 400;
letter-spacing: 1px;
color: black;
border: none;
border-radius: 40px;
transition: all 0.6s ease;
box-shadow: 5px 7px 18px rgb(0, 0, 0, 0.4);
}
.btn:hover {
background-color: black;
color: white;
box-shadow: 5px 7px 18px rgb(0, 0, 0, 0.8);
}
.text-slider {
width: 70%;
height: 90vh;
margin: 100px auto;
position: relative;
text-align: center;
align-items: center;
}
.carousel {
height: 70vh;
overflow: hidden;
}
.slider {
height: 100%;
display: flex;
width: 400%;
transition: all 0.3s;
}
.slider p {
width: 70%;
font-size: 17px;
}
.slider section {
flex-basis: 100%;
display: flex;
justify-content: center;
align-items: center;
}
.controls .arrow {
position: absolute;
top: 50%;
transform: translateY(-50%);
cursor: pointer;
}
.controls .arrow i {
font-size: 60px;
}
.arrow.left {
left: 10px;
}
.arrow.right {
right: 10px;
}
.nextpage-arrow i {
font-size: 60px;
cursor: pointer;
}
<section class="hero">
<div class="introduction">
<div class="welcometxt">
<h1>
WELLCOME
</h1>
</div>
<div class="intro-text">
<h1>Optimal Solution for Your Product</h1>
<p>
Ensuring optimal solution for your Quality Management.
</p>
</div>
<div class="cta">
<button class="btn" id="more-info">Click for more</button>
</div>
</div>
</section>
<div class="text-slider" id="text-slider">
<h1>About Us</h1>
<div class="carousel">
<div class="slider">
<section>
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Aliquam, fugiat.</p>
</section>
<section>
<p>Lorem ipsum, dolor sit amet consectetur adipisicing elit. Repellat, commodi?</p>
</section>
<section>
<p>Lorem ipsum dolor, sit amet consectetur adipisicing elit. Eligendi, velit.</p>
</section>
<section>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Quaerat, aperiam.</p>
</section>
</div>
<div class="controls">
<span class="arrow left">
<i class="material-icons">
keyboard_arrow_left
</i>
</span>
<span class="arrow right">
<i class="material-icons">
keyboard_arrow_right
</i>
</span>
</div>
</div>
<div class="nextpage-arrow">
<span class="text-slider-btn">
<i class="material-icons">
keyboard_arrow_down
</i>
</span>
</div>
</div>
Recommend you to add background: #000; as fallback for background-image since sometimes image might not be loaded.

style parent element based on child elements

I'm creating a timeline and for this I need a dashed border for certain event times. But I can't combine the two styles together.
To put it simply, I need a solid border for most of the timeline events except a few, which have a common class, where I need a dotted border. I have the following code till now.
I need the border between the Break event till Event 4 to be dotted instead of solid. Any CSS/JS based solution would do.
.timeline {
border-left: 4px solid #a5a5a5;
border-bottom-right-radius: 4px;
border-top-right-radius: 4px;
background: rgba(255, 255, 255, 0.03);
color: rgba(0, 0, 0, 0.8);
font-family: "Source Sans Pro", sans-serif;
margin: 0 auto 50px auto;
letter-spacing: 0.5px;
position: relative;
line-height: 1.4em;
font-size: 1.03em;
padding: 30px;
list-style: none;
text-align: left;
font-weight: 100;
max-width: 30%;
}
.timeline .event:before,
.timeline .event:after {
position: absolute;
display: block;
top: 0;
}
.timeline .event:before {
left: -170px;
color: rgba(0, 0, 0, 1);
content: attr(data-date);
text-align: right;
font-weight: 100;
font-size: 0.9em;
min-width: 120px;
}
.timeline .event:after {
box-shadow: 0 0 0 4px #a5a5a5;
left: -37.85px;
background: #313534;
border-radius: 50%;
height: 11px;
width: 11px;
content: "";
top: 5px;
}
.timeline .event {
border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
padding-bottom: 25px;
position: relative;
}
<ul class="timeline ">
<li class="event" data-date="09:30 - 10:00 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Event 1</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>
<li class="event" data-date="10:00 - 10:30 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Event 2</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>
<li class="event break" data-date="10:30 - 11:00 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Break</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>
<li class="event" data-date="11:00 - 11:30 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Event 4</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>

You should change your approach
Try this:
.timeline {
border-bottom-right-radius: 4px;
border-top-right-radius: 4px;
background: rgba(255, 255, 255, 0.03);
color: rgba(0, 0, 0, 0.8);
font-family: "Source Sans Pro", sans-serif;
margin: 0 auto 50px auto;
letter-spacing: 0.5px;
position: relative;
line-height: 1.4em;
font-size: 1.03em;
padding: 30px;
list-style: none;
text-align: left;
font-weight: 100;
max-width: 30%;
}
.timeline .event:before,
.timeline .event:after {
position: absolute;
display: block;
top: 0;
}
.timeline .event:before {
left: -160px;
color: rgba(0, 0, 0, 1);
content: attr(data-date);
text-align: right;
font-weight: 100;
font-size: 0.9em;
min-width: 120px;
}
.timeline .event:after {
box-shadow: 0 0 0 4px #a5a5a5;
left: -8px;
background: #313534;
border-radius: 50%;
height: 11px;
width: 11px;
content: "";
top: 5px;
}
.timeline .event h3 {
margin-top: 0px;
}
.timeline .event {
border-left: 4px solid #a5a5a5;
border-bottom: 1px dashed rgba(255, 255, 255, 0.6);
padding-bottom: 0px;
padding-left: 40px;
position: relative;
}
.timeline .break {
border-left: 4px dotted #a5a5a5;
}
<ul class="timeline ">
<li class="event" data-date="09:30 - 10:00 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Event 1</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>
<li class="event" data-date="10:00 - 10:30 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Event 2</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>
<li class="event break" data-date="10:30 - 11:00 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Break</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>
<li class="event" data-date="11:00 - 11:30 ">
<div onclick="document.getElementById('id01').style.display='block'">
<h3 class="event-title">Event 4</h3>
<p>Lorem ipsum dolor sit amet.</p>
</div>
</li>

CSS problem in ie, ff

<style type="text/css">
<!--
* {
border: 0;
margin: 0;
padding: 0;
outline: none;
}
body {
background-color: #5e0305;
/* font-family: 'Helvetica','Arial';*/
font-family: Arial, Helvetica, sans-serif;
font-size: 12px;
color: #999;
line-height: 16px;
}
#itrunk, #strunk {
/* width:auto;
width:1260px;*/
height: 62px;
}
.wrapper {
width: 1000px;
margin: 0 auto;
}
#topbar {
height: 62px;
overflow: visible;
position: relative;
z-index: 3;
}
#topbar #itmlogo {
float: left;
list-style: none;
/* display: block;*/
}
#topbar #menuTop { /* only for box containing menutop items*/
float: right;
height: 55px;
background-color: transparent;
}
#topbar ul#menuTop {
list-style: none;
}
#topbar ul#menuTop li {
float: left;
text-align: right;
}
#topbar ul#menuTop a {
float: left;
display: block;
width: 110px;
height: 42px;
padding: 14px 7px 0px 0px;
text-transform: uppercase;
text-decoration: none;
font-weight: bold;
font-size: 12px;
color: #000;
letter-spacing: 1px;
}
.ddpanel {
position: relative;
top: 0px;
left: 0px;
z-index: 2;
min-width: 1000px;
height auto;
background-color: pink;
border-color: #FFFF00;
border-style: solid;
border-width: 1px;
padding-bottom: 20px;
}
.ddpanel .ddpanelcontent {
-moz-box-shadow: 0px 0px 8px #fff;
-webkit-box-shadow: 0px 0px 8px #fff;
box-shadow: 0px 0px 8px #fff;
position: relative;
top: 0px;
margin: 0 auto;
padding: 20px 25px 20px 25px;
clear: both;
width: 942px;
z-index: 2;
border-color: #FFFFFF;
border-style: solid;
border-width: 2px;
color: #336666;
font-size: 12px;
font-weight: 500;
font-variant: normal;
letter-spacing: 0.05em;
line-height: 30px;
background-color: #CCCCCC;
-moz-border-radius-topleft: 25px;
-moz-border-radius-topright: 25px;
-moz-border-radius-bottomright: 25px;
-moz-border-radius-bottomleft: 25px;
border-top-left-radius: 25px;
border-top-right-radius: 25px;
border-bottom-right-radius: 25px;
border-bottom-left-radius: 25px;
-webkit-border-radius:25px 25px 25px 25px;
}
-->
</style>
</head>
<body>
<div id="strunk" >
<div class="wrapper">
<div id="topbar">
<div id="menubox">
<ul id="menuTop">
<li>
<a onclick="getLink('home'); return false" onmouseover="status=''; return true;" >home
</a>
</li>
</ul>
</div>
</div>
<!-- topbar-->
</div>
<div class="wrapper"><!-- wrapper1 open-->
<div id="mypanel" class="ddpanel">
<div id="mypanelcontent" class="ddpanelcontent">
<span id="text1" style="font-size:14px; font-weight:600">What services do we offer ?</span><br /><span id="text2" style="font-size:13px; font-weight:500;">
lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum
lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum
lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum
lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum
</span>
</div> <!-- mypanelcontent-->
</div><!-- mypanel -->
</div> <!-- wrapper1 closed-->
</div><!-- strunk-->
</body>
</html>

Add <!DOCTYPE> on top of your HTML file:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">