Creating transparent overlays for horizontal row of 3 <img> - javascript

I want to cause an overlay on mouseover for my three images. I believe it will be best to use jQuery after creating a div. However, when I add a new div to my layout (below each of the <img> in my code) My layout is screwed up; goes from horizontal list to vertical list if i try to add in any <div> below my <img>.
I mainly want the overlay just sitting there. Im sure I can figure out mouseover action, but main issue is I cannot generate initial overlay
stackoverflowers: please help me add in an overlay div that will ultimately be transparent.
home.html I have commented out my attempt at placing overlay divs
<!DOCTYPE html>
<html>
<head>
<link type = "text/css" rel="stylesheet" href="stylesheet.css"/>
<script type = "text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script type="text/javascript" src="script.js"></script>
<title>Home Page</title>
</head>
<body>
<div class="header">
<ul id="headerMenu">
<li>
PROGRAM
<ul id="programDrop">
<li><a href='#'>INSPECTIONS</a></li>
<li><a href='#'>SOFTWARE</a></li>
<li><a href='#'>SAVINGS</a></li>
</ul>
</li>
<li>LOGIN
<ul id="loginDrop">
<li><a href='#'>TECHNICIAN LOGIN</a></li>
<li><a href='#'>CUSTOMER LOGIN</a></li>
</ul>
</li>
<li>ABOUT</li>
</ul>
</div>
<div id="midMain">
<div class="circularImg">
<img src="http://media.treehugger.com/assets/images/2011/10/ice-energy-store.jpg"/>
<!-- <div class="overlay"></div> -->
<img src="http://www.contemporist.com/photos/e4delmar.jpg"/>
<!-- <div class="overlay"></div> -->
<img src="http://www.rkmheatingandair.com/service-tech2.jpg"/>
<!-- <div class="overlay"></div> -->
</div>
</div>
</body>
</html>
stylesheet.css
body {
margin: 0;
}
.header {
background-color: white;
font-family: sans-serif;
height: 75px;
width: 100%;
display: table;
}
/* Main centered menu on top */
#headerMenu {
text-align: center;
padding: 0;
list-style: none;
display: table-cell;
vertical-align: bottom;
font-size: 1rem;
}
#headerMenu > li {
display: inline-block;
}
#headerMenu > li:nth-child(1) {
color:red;
}
#headerMenu li a {
text-decoration: none;
color: black;
margin: 2rem;
padding: 0;
}
#headerMenu li a:hover {
color: lightgray;
}
/* Sub Menu for Link One */
#programDrop {
text-decoration: none;
list-style: none;
display: block;
visibility: hidden;
padding-left: 0;
text-align: left;
position:absolute;
}
#programDrop li a{
color: black;
text-align: left;
list-style: none;
}
/* Sub Menu for Link Two */
#loginDrop {
text-decoration: none;
list-style: none;
display: block;
visibility: hidden;
padding-left: 0;
text-align: left;
position:absolute;
}
#loginDrop li a{
color: black;
text-align: left;
}
/* Photos on home page */
#midMain {
border: 1px solid red;
background-color: white;
text-align: center;
}
.circularImg {
overflow: hidden;
display: inline-block;
margin: auto;
padding: 0;
}
/* Removed code because nothing works as of yet */
.overLay {
}
/* Sets img imports as circular by default */
img {
border-radius: 50em;
min-height: 10em;
height: 18em;
width: 18em;
min-width: 10em;
margin: 3rem;
position:relative;
opacity: .5;
}
included jQuery script.js
jQuery(document).ready(function() {
$('#headerMenu > li:nth-child(1)').mouseenter(function() {
$('#programDrop').css('visibility','visible');
});
$('#headerMenu > li:nth-child(1)').mouseleave(function() {
$('#programDrop').css('visibility','hidden');
});
});
jQuery(document).ready(function() {
$('#headerMenu > li:nth-child(2)').mouseenter(function() {
$('#loginDrop').css('visibility','visible');
});
$('#headerMenu > li:nth-child(2)').mouseleave(function() {
$('#loginDrop').css('visibility','hidden');
});
});

As per comments
CSS
.overlay {
background:black;
border-radius: 50em;
min-height: 10em;
height: 18em;
width: 18em;
min-width: 10em;
margin: 3rem;
position:relative;
}
HTML
<div class="overlay"><img src="http://media.treehugger.com/assets/images/2011/10/ice-energy-store.jpg"/></div>
CODE
$(document).on("mouseover", "img", function() {
$(".overlay").css({"z-index": "999"});
$("img").css("opacity",".5");
});
Demo
http://jsfiddle.net/79zty3h7/

Related

class text-content set into class slider but it is pushed down?

I am coding a very simple HTML CSS program and here is my problem.
I made a picture in id named slider, and I want to write some text into it. And as the tutorial, I wrote a class named text-content in the slider. Very easy to understand, right?
Here is all of my index.html code
* {
padding: 0;
margin: 0;
box-sizing: border-box;
}
html {
font-family: Arial, Helvetica, sans-serif;
}
#main {
}
#header {
height: 46px;
background-color: #000;
position: fixed;
top: 0;
left: 0;
right: 0;
}
#header .search-btn {
float: right;
padding: 12px 24px;
}
#header .search-btn:hover {
background-color: #f44336;
cursor: pointer;
}
#header .search-icon {
color: #fff;
font-size: 20px;
}
#nav {
display: inline-block;
}
#nav li {
position: relative;
}
#nav > li {
display: inline-block;
}
#nav li a {
text-decoration: none;
line-height: 46px;
padding: 0 24px;
display: block;
}
#nav .subnav li:hover a,
#nav > li:hover > a {
color : #000;
background-color: #ccc;
}
#nav > li > a {
color: #fff;
text-transform: uppercase;
}
#nav li:hover .subnav {
display: block;
}
#nav, .subnav {
list-style-type: none;
}
#nav .subnav {
display: none;
position: absolute;
background-color: #fff;
top :100%;
left :0;
box-shadow : 0 0 10px rgba(0, 0, 0, 0.3);
}
#nav .subnav a {
color: #000;
padding: 0px 16px;
min-width: 160px;
}
#nav .nav-arrow-down {
font-size: 14px;
}
#slider {
margin-top: 46px;
height: 400px;
min-height: 500px;
background-color: #333;
padding-top: 50%;
background: url('/assets/css/img/slider/slider1.jpg') top center / cover no-repeat;
}
#slider .text-heading {
}
#slider .text-description {
}
#content {
}
#footer {
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./assets/css/styles.css">
<link rel="stylesheet" href="./assets/css/themify-icons-font/themify-icons/themify-icons.css">
</head>
<body>
<div id="main">
<div id="header">
<ul id="nav">
<li>HOME</li>
<li>BAND</li>
<li>TOUR</li>
<li>CONTACT</li>
<li>
<a href="">MORE
<i class="nav-arrow-down ti-arrow-circle-down"></i>
<ul class="subnav">
<li>Merchandise</li>
<li>Extras</li>
<li>Media</li>
</ul>
</a></li>
</ul>
<div class="search-btn">
<i class="search-icon ti-search"></i>
</div>
</div>
<div id="slider">
<div class="text-content">
<h2 class="text-heading">New York</h2>
<div class="text-description">We had the best time playing at Venice Beach!</div>
</div>
</div>
<div id="content" style="height: 1000px; background: #ccc;">
</div>
<div id="footer">
</div>
</div>
</body>
</html>
That is all of my code.
Here is the tutorial's picture, as you can see, the text is in the picture
Because when I click on the picture, it said to me that it is in the slider.
As you can see in this picture
I thought that if the picture is in the slider, and the text-content is in the slider, the text-content must in the picture?
My question is, I put class text-content in id slider, but the class text-content is pushed down, as you can see in this picture
Could you please explain this problem to me? Thank you very much for your time.
I assume you want to make a Hero Image. You can move the text position up.
* {
padding: 0;
margin: 0;
box-sizing: border-box;
}
html {
font-family: Arial, Helvetica, sans-serif;
}
#main {
}
#header {
height: 46px;
background-color: #000;
position: fixed;
top: 0;
left: 0;
right: 0;
}
#header .search-btn {
float: right;
padding: 12px 24px;
}
#header .search-btn:hover {
background-color: #f44336;
cursor: pointer;
}
#header .search-icon {
color: #fff;
font-size: 20px;
}
#nav {
display: inline-block;
}
#nav li {
position: relative;
}
#nav > li {
display: inline-block;
}
#nav li a {
text-decoration: none;
line-height: 46px;
padding: 0 24px;
display: block;
}
#nav .subnav li:hover a,
#nav > li:hover > a {
color : #000;
background-color: #ccc;
}
#nav > li > a {
color: #fff;
text-transform: uppercase;
}
#nav li:hover .subnav {
display: block;
}
#nav, .subnav {
list-style-type: none;
}
#nav .subnav {
display: none;
position: absolute;
background-color: #fff;
top :100%;
left :0;
box-shadow : 0 0 10px rgba(0, 0, 0, 0.3);
}
#nav .subnav a {
color: #000;
padding: 0px 16px;
min-width: 160px;
}
#nav .nav-arrow-down {
font-size: 14px;
}
#slider {
margin-top: 46px;
height: 400px;
min-height: 500px;
background-color: #333;
padding-top: 50%;
background: url('https://images.unsplash.com/photo-1474692295473-66ba4d54e0d3?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=784&q=80') top center / cover no-repeat;
}
#slider .text-content{
position: absolute;
bottom: 25%;
}
#slider .text-heading {
}
#slider .text-description {
}
#content {
}
#footer {
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="./assets/css/styles.css">
<link rel="stylesheet" href="./assets/css/themify-icons-font/themify-icons/themify-icons.css">
</head>
<body>
<div id="main">
<div id="header">
<ul id="nav">
<li>HOME</li>
<li>BAND</li>
<li>TOUR</li>
<li>CONTACT</li>
<li>
<a href="">MORE
<i class="nav-arrow-down ti-arrow-circle-down"></i>
<ul class="subnav">
<li>Merchandise</li>
<li>Extras</li>
<li>Media</li>
</ul>
</a></li>
</ul>
<div class="search-btn">
<i class="search-icon ti-search"></i>
</div>
</div>
<div id="slider">
<div class="text-content">
<h2 class="text-heading">New York</h2>
<p class="text-description">We had the best time playing at Venice Beach!</p>
</div>
</div>
<div id="content" style="height: 1000px; background: #ccc;">
</div>
<div id="footer">
</div>
</div>
</body>
</html>
As you question that you want to create a hero image section and you facing some design issue. so you have to look for CSS properties that should you've to use. If you want a demo section like that then I can suggest you check this manual.
https://www.w3schools.com/howto/howto_css_hero_image.asp
You can redesign your section as you want.
For the #slider div, use display:inline-block:
#slider{display:inline-block}

Unable to use position:sticky; while adding element through .innerHTML

I want to make the menu stick to the top of the page.
The code works just fine if I just add the code to the page.
However, I want to use javascript because I want to be able to change the menu on every page without having to do it manually on each one.
document.getElementById('menu-js').innerHTML = `<div id="menu">
<div class="dropdown">
<button class="dropbtn">Button_1</button>
<div class="dropdown-content">
Link 1
Link 2
Link 3
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Button_2</button>
<div class="dropdown-content">
Link 4
Link 5
Link 6
</div>
</div>
</div>`
#import url('https://fonts.googleapis.com/css?family=Abril+Fatface|Arsenal|Rubik&display=swap');
#menu {
background-color: white;
top: 0px;
left: 0px;
position: sticky;
padding-left: 10px;
margin-top: -8px;
margin-left: -30px;
margin-right: -0.51%;
border-bottom-color: black;
border-bottom-style: solid;
border-bottom: 5px;
}
.dropbtn {
background-color: white;
color: black;
padding: 16px;
font-size: 16px;
border: none;
margin: none;
font-family: 'Arsenal';
}
.dropdown {
display: inline-block;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f2d3d8;
min-width: 200px;
z-index: 1;
font-family: 'Arsenal';
}
.dropdown-content a {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.dropdown-content a:hover {
background-color: #ffd3b6;
}
.dropdown:hover .dropdown-content {
display: block;
}
.dropdown:hover .dropbtn {
background-color: #c06014;
color: white;
}
#page-container {
position: relative;
min-height: 100vh;
}
#content-wrap {
padding-bottom: 2.5rem;
}
footer {
position: absolute;
bottom: 0;
width: 100%;
height: 2.5rem;
}
hr {
margin-left: -20px;
color: #c06014
}
<html>
<head>
<title>TITLE</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id='page-container'>
<div id='content-wrap'>
<h1>Content above menu</h1>
<div id='menu-js'></div>
<h1>body</h1>
<h2>body</h2>
</div>
<footer>
<hr>FOOTER</footer>
</div>
<script src='menu.js'></script>
</body>
</html>
If possible, I would like to only use these three languages.
Thanks!
Your code seems almost perfect in terms of sticky property.
Try to add a max-height property(value in pixel) to the menu-js div.

How to hide element and show by clicking with jquery?

Hi how can i make element subtopics show and hide on click? i also want my subtopics hide when i clicked other menus or anywhere in web page thank you.
$(document).ready(function () {
$("#mainTopics").click(function (e) {
e.preventDefault();
$("#subTopics").toggle()
});
$("html").click(function (e) {
$("#subTopics").hide();
})
});
body
{
margin: 0;
}
li, a{
text-decoration: none;
list-style-type: none;
text-decoration-line: none;
color: black;
}
/*main-menu*/
#main-menu {
position: relative;
}
#main-menu ul {
margin: 0;
padding: 0;
}
#main-menu li {
display: inline-block;
}
#main-menu a {
display: block;
width: 100px;
padding: 10px;
border: 1px solid;
text-align: center;
}
/*sub-topics*/
#subTopics {
position: absolute;
display: none;
margin-top: 10px;
width: 100%;
left: 0;
}
#subTopics ul {
margin: 0;
padding: 0;
}
#subTopics li {
display: block;
}
#subTopics a {
text-align: left;
}
/*columns*/
#column1, #column2, #column3 {
position: relative;
float: left;
left: 125px;
margin: 0px 5px 0px 0px;
}
/*hover underline*/
#main-menu li:hover {
text-decoration: underline;
}
Html
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title></title>
<link rel="stylesheet" type="text/css" href="index.css" />
</head>
<body>
<header>
</header>
<nav>
<div id="main-menu">
<ul>
<li>Logo</li>
<li>Home</li>
<li>Topics
<div id="subTopics">
<div id="column1" class="columns">
<ul>
<li>example1</li>
<li>example2</li>
</ul>
</div>
</div>
</li>
</ul>
</div>
</nav>
<script src="jquery.js"></script>
<script src="index.js"></script>
<script>
</script>
</body>
</html>
Hi how can i make element subtopics show and hide on click? i also want my subtopics hide when i clicked other menus or anywhere in web page thank you.
Use toggle method to change from show to hide and vice versa.Also note the usage of preventDefault to prevent the default behavior of the anchor tag.
To hide the subTopics on clicking anywhere ,check for the visibility of the element then use the same toggle function.
Also note in this case the use of preventDefault along with stopPropagation
$(document).ready(function() {
$("#mainTopics").click(function(e) {
e.preventDefault();
e.stopPropagation();
$("#subTopics").toggle();
});
$('body').on('click', function() {
if ($("#subTopics").is(':visible')) {
$("#subTopics").toggle();
}
})
});
body {
margin: 0;
}
li,
a {
text-decoration: none;
list-style-type: none;
text-decoration-line: none;
color: black;
}
/*main-menu*/
#main-menu {
position: relative;
}
#main-menu ul {
margin: 0;
padding: 0;
}
#main-menu li {
display: inline-block;
}
#main-menu a {
display: block;
width: 100px;
padding: 10px;
border: 1px solid;
text-align: center;
}
/*sub-topics*/
#subTopics {
position: absolute;
display: none;
margin-top: 10px;
width: 100%;
left: 0;
}
#subTopics ul {
margin: 0;
padding: 0;
}
#subTopics li {
display: block;
}
#subTopics a {
text-align: left;
}
/*columns*/
#column1,
#column2,
#column3 {
position: relative;
float: left;
left: 125px;
margin: 0px 5px 0px 0px;
}
/*hover underline*/
#main-menu li:hover {
text-decoration: underline;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<header>
</header>
<nav>
<div id="main-menu">
<ul>
<li>Logo</li>
<li>Home</li>
<li>Topics
<div id="subTopics">
<div id="column1" class="columns">
<ul>
<li>example1</li>
<li>example2</li>
</ul>
</div>
</div>
</li>
</ul>
</div>
</nav>
Also Alternativetly you can use jquery .hide() and .show() methods
Jquery hide Show

Text Within Div Stuck To The Right Hand Side

The text within the div (Or the UL in other terms) is only staying to the right hand side of the div. It's content won't stay center aligned no matter what I change.
HTML:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Lakeside Books</title>
<link rel="stylesheet" type="text/css" href="masterstyle.css">
<meta name="viewsize" content="width-device-width,initial-scale=1.0">
<!--[if IE]>
<script type="text/javascript" src="_http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
</head>
<body>
<div id="wrapper">
<div id="sidebar">
<nav id="nav">
<div id="searchbar">
<form action="http://www.example.com/search.php">
<input type="text" name="search" placeholder="Enter Book Title"/>
</form>
</div>
<ul>
<li>
<a id="firstlink">
Home
</a>
</li>
<li>
<a id="secondlink">
Categories
</a>
</li>
<li>
<a id="thirdlink">
Bestsellers
</a>
</li>
<li>
<a id="fourthlink">
Contact
</a>
</li>
</ul>
</nav>
</div>
</div>
</body>
</html>
CSS:
body{
background-color: #f1f6f6;
}
#sidebar{
background-color: #212528;
position: fixed;
width: 20%;
height: 100%;
top: 0;
left: 0;
overflow: hidden;
}
#nav{
margin: 2em 1em 1em 1em;
text-align: right;
color: #888888;
display: block;
max-width: 100%;
}
#nav li{
list-style-type: none;
}
#searchbar{
padding-bottom: 0.5em;
text-align: center;
}
#searchbar input{
max-width: 100%;
}
#firstlink{
display: block;
padding: 0.5em 1.5em 0.5em 1.5em;
}
#secondlink{
display: block;
padding: 0.5em 1.5em 0.5em 1.5em;
}
#thirdlink{
display: block;
padding: 0.5em 1.5em 0.5em 1.5em;
}
#fourthlink{
display: block;
padding: 0.5em 1.5em 0.5em 1.5em;
}
If you look at this image using chromes inspect element you can clearly see that the li container is pushed more to the right than centering itself within the div. Image here - http://i.imgur.com/GfxLGtl.png
JSFiddle with the code included above:
https://jsfiddle.net/4pxw4eus/
I guess you didn't use CSS reset, so your UL has some default left padding.
Add visible borders to your ul and li to see the issue more clearly :>
If this is what you want to accomplish. There was a text-align center for #nav, but #nav isnt your UL id, it was just a wrapper. By default, the UL elements have a padding-left, which I have removed. You were setting that on the wrapper giving an even bigger value to your left-padding.
I have also removed your LI elements top/bottom paddings, adding it to the link #nav ul li a, for UX purposes.
Hope this is what you have been looking for. Best of luck!
body{
background-color: #f1f6f6;
}
#sidebar{
background-color: #212528;
position: fixed;
width: 20%;
height: 100%;
top: 0;
left: 0;
overflow: hidden;
}
#nav{
margin: 2em 1em;
color: #888888;
display: block;
max-width: 100%;
}
#nav ul {
padding-left: 0;
}
#nav li{
list-style-type: none;
padding: 0;
text-align: center;
}
#nav li a {
display: block;
padding: 0.5em 0;
}
#searchbar{
padding-bottom: 0.5em;
text-align: center;
}
#searchbar input{
max-width: 100%;
}
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Lakeside Books</title>
<link rel="stylesheet" type="text/css" href="masterstyle.css">
<meta name="viewsize" content="width-device-width,initial-scale=1.0">
<!--[if IE]>
<script type="text/javascript" src="_http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
</head>
<body>
<div id="wrapper">
<div id="sidebar">
<nav id="nav">
<div id="searchbar">
<form action="http://www.example.com/search.php">
<input type="text" name="search" placeholder="Enter Book Title"/>
</form>
</div>
<ul>
<li>
<a id="firstlink">
Home
</a>
</li>
<li>
<a id="secondlink">
Categories
</a>
</li>
<li>
<a id="thirdlink">
Bestsellers
</a>
</li>
<li>
<a id="fourthlink">
Contact
</a>
</li>
</ul>
</nav>
</div>
</div>
</body>
</html>
Anything under nav is inheriting your text-align:right; . Make a new rule:
#nav >li { text-align:center;}
Maybe this example will help you: http://jsfiddle.net/kbw6449r/
#sidebar{
background-color: #212528;
position: fixed;
width: 20%;
height: 100%;
top: 0;
left: 0;
overflow: hidden;
}
#nav{
margin: 2em 1em 1em 1em;
text-align: right;
color: #888888;
display: block;
max-width: 100%;
}
#searchbar{
padding-bottom: 0.5em;
text-align: center;
}
#searchbar input{
max-width: 100%;
}
#nav ul {
margin: 0;
padding: 0;
}
#nav li{
list-style: none;
width: 100%;
text-align: center;
padding: 0.5em 0 0.5em 0;
}
I think you need to set the UL padding to 0. See this fiddle to see how the default padding causes this:
#nav > ul { padding:0; }
http://jsfiddle.net/2p6r0e5x/
This may be nice to use, try it:
.my-div{
height: 100%; // or whatever
width: 100%; // or whatever
display: table;
}
.my-div p{
display: table-cell;
text-align: center;
vertical-align: middle;
}

Two divs is going through eachother when resizing

My problem is when i resize the window(smaller) One of my divs just go through and on top of my navigation bar... Which is annoying, but i believe there is a easy way to fix it. I can give you the code, but should test it in your editor program - and then resize, youll see what i mean.
HTML CODE HERE:
<!DOCTYPE html>
<html>
<head>
<link type="text/css" rel="stylesheet" href="WorkFieldStartpage.css"/>
</head>
<body>
<div id="upperblock">
</div>
<div class="topbar"></div>
<div id="pageContainer">
<div id="pageContainer2">
<div>
<div id="leftnavigation">
<ul>
<li> <h4> Navigation </h4> </li>
<li>Test text</li>
<li>Test text</li>
<li>Test text</li>
</ul>
</div>
<div id="mainContainer">
<div id="newsfeed"></div>
</div>
</div>
</div>
</div>
</body>
</html>
CSS:
body {
color: #333;
line-height: 1.28;
text-align: left;
direction: ltr;
}
div {
display: block;
}
.topbar {
font-family: sans-serif;
font-size:12px;
font-weight: bold;
background-color: #11BD83;
height: px;
width: 100%;
position:fixed;
left: 0px;
top: 0px;
}
#pageContainer {
margin: 0 auto;
position: relative;
zoom: 1;
min-height: 600px;
}
#pageContainer2 {
margin: 0;
outline: none;
padding: 0;
width: auto;
}
ul {
list-style-type: none;
}
h4 {
text-decoration:underline;
}
#mainContainer {
display: block;
width: 620px;
border-right: 1px solid #ccc;
border-left: 1px solid #ccc;
min-height: 800px;
margin-left: auto ;
margin-right: auto ;
margin-top: 58px;
}
#leftnavigation {
float: left;
height: 300px;
width: 120.5px;
text-align: left;
font-family: sans-serif;
font-size: 15px;
padding-right: 30px;
display:block;
}
#newsfeed {
}
make #leftnavigation AND #mainContainer div float:left
Set to the maincontainer div an overflow:auto; property. This will disable to overlap on floated elements.

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