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JS dropdown menu being hidden? or not working?

After thoroughly trying to fix this issue - I need a little help.
I am trying to make a website that has a navbar (made with bootstrap) for websites and I am making a small drop-down menu for smaller screens (I haven't added this functionality yet, I just want it to work first). I haven't styled it much yet either.
The problem is that I know my button and code is working (because I have a codepen showing that it works), but in my website, I cannot see the drop-down menu. Not sure if it is hidden or what but I just can't figure this out.
Here is the HTML (because I have to put something...):
<div class = "dropdown">
<button onclick = "menuBtn ()" class = "dropBtn">Menu</button>
<div id = "dropCollapse" class = "dropdownContent">
<a class = "contentLinks" href = "#about">About</a>
<a class = "contentLinks" href = "#team">Team</a>
<a class = "contentLinks" href = "#photos">Photos</a>
<a class = "contentLinks" href = "#shirts">T-Shirts</a>
<a class = "contentLinks" href = "#contact">Contact</a>
</div>
</div>
I have played around with z-index (in a number of places but if you have a suggestion, feel free to make it and I will try it). I have taken the menu out of the navbar (thinking it had something to do with that). But mostly I am just confused - nothing else really answered my question about this menu issue. I feel like there is something small that I am overlooking and I just can't figure it out.
Here is a fiddle showing the basic outline of my website with the menu not working: https://jsfiddle.net/nekochan/eh69segg/1/

A few things I noticed:
you were using jQuery but did not define jQuery to load. If you do an "inspect element" you'll see that $ is not defined
also you had a few missing divs, and an anchor wasn't closed
I'd recommend just using purely jQuery if you're going to go that approach - it's a very simple example. Here is your updated fiddle - notice the toggle animates nicely :)
https://jsfiddle.net/qdL9mch2/1/
/* global $ */
$(document).ready(function() {
//makes the masethead fit the whole screen
$("#masthead").css("min-height", $(window).height());
//mobile menu button collapse
$(".dropBtn").on("click", function(){
$("#dropCollapse").toggle("show");
});
// Close the dropdown menu if the user clicks outside of it
//update to jquery
window.onclick = function(event) {
if (!event.target.matches('.dropBtn')) {
var dropdowns = document.getElementsByClassName("dropdownContent");
for (var i = 0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
};
});

there are multiple errors there in your HTML for example <a class="navBrand" href="#masthead"> is not closing and your menuBtn is not being called, I would recommend you to use jquery completely if you have it included inside your project see here your code working
//mobile menu button collapse
function menuBtn() {
document.getElementById("dropCollapse").classList.toggle("show");
}
/* global $ */
$(document).ready(function() {
$("#my-button").click(function() {
document.getElementById("dropCollapse").classList.toggle("show");
})
//makes the masethead fit the whole screen
$("#masthead").css("min-height", $(window).height());
// Close the dropdown menu if the user clicks outside of it
window.onclick = function(event) {
if (!event.target.matches('.dropBtn')) {
var dropdowns = document.getElementsByClassName("dropdownContent");
for (var i = 0; i < dropdowns.length; i++) {
var openDropdown = dropdowns[i];
if (openDropdown.classList.contains('show')) {
openDropdown.classList.remove('show');
}
}
}
};
});
.main {
font-family: 'Roboto', sans-serif;
width: 100%;
margin: 0px;
padding: 0px;
overflow-x: hidden;
overflow-y: hidden;
}
.body {
position: relative;
}
#navBar {
margin-bottom: 0;
background-color: black;
font-family: 'Permanent Marker', cursive;
}
.brandImage {
height: 60px;
width: auto;
}
#navHeader {}
#navItem {}
#navLink {
text-decoration: none;
}
.dropBtn {
background-color: #4caf50;
color: white;
padding: 16px;
font-size: 16px;
border: none;
cursor: pointer;
}
.dropBtn:hover,
.dropBtn:focus {
background-color: #3e8e41;
}
.dropdown {
position: relative;
display: inline-block;
}
.dropdownContent {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0, 0, 0, 0.2);
z-index: 9999;
}
.contentLinks {
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
}
.contentLinks:hover {
background-color: #f1f1f1;
}
.show {
display: block;
}
#media (max-width: 960px) {
#large-menu {
display: none;
}
.brandImage {
float: left;
}
}
#masthead {
background-color: #65737e;
background-image: url(https://static.pexels.com/photos/285286/pexels-photo-285286.jpeg);
width: 100%;
height: auto;
background-size: cover;
background-position: bottom center;
display: flex;
align-items: center;
min-height: 100%;
min-height: 100vh;
}
.headerText {
font-size: 90px;
font-family: 'Permanent Marker', cursive;
color: #fff;
}
.headerTagline {
font-size: 60px;
font-family: 'Permanent Marker', cursive;
color: #fff;
}
.anchor {
display: block;
height: 50px;
margin-top: -50px;
visibility: hidden;
}
.sectionHeader {
font-family: 'Permanent Marker', cursive;
padding: 20px 20px 20px 20px;
}
.sectionText {
padding: 20px 20px 20px 20px;
}
#aboutBox {
background-color: #c0c5ce;
padding: 20px 0 20px;
}
#teamBox {
background-color: #a7adba;
padding: 20px 0 20px;
}
#workBox {
background-color: #65737e;
padding: 20px 0 20px;
}
#shirtBox {
background-color: #4f5b66;
padding: 20px 0 20px;
}
#socialBox {
background-color: #343d46;
padding: 20px 0 20px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
<nav class="navbar navbar-inverse navbar-fixed-top" id="navBar">
<div class="container-fluid">
<div class="navHeader navbar-left">
<a class="navBrand" href="#masthead"></a>
<ul class="nav navbar-nav navbar-right" id="large-menu">
<li class="navItem">
<a class="navLink" href="#about">About</a>
</li>
<li class="navItem">
<a class="navLink" href="#team">Team</a>
</li>
<li class="navItem">
<a class="navLink" href="#photos">Photos</a>
</li>
<li class="navItem">
<a class="navItem" href="#shirts">T-Shirts</a>
</li>
<li class="navItem">
<a class="navLink" href="#contact">Contact</a>
</li>
</ul>
</div>
<div class="dropdown">
<button class="dropBtn" id="my-button">Menu</button>
<div id="dropCollapse" class="dropdownContent">
<a class="contentLinks" href="#about">About</a>
<a class="contentLinks" href="#team">Team</a>
<a class="contentLinks" href="#photos">Photos</a>
<a class="contentLinks" href="#shirts">T-Shirts</a>
<a class="contentLinks" href="#contact">Contact</a>
</div>
</div>
</nav>
<div class="container text-center" id="masthead">
<div class="col-sm-12">
<h1 class="headerText"></h1>
<p class="headerTagline"></p>
</div>
</div>
<span class="anchor" id="about"></span>
<div class="container-fluid" id="aboutBox">
<div class="row">
<div class="col-sm-12">
<h2 class="sectionHeader">About Us</h2>
<p class="sectionText">We're all about that chedda</p>
</div>
</div>
</div>
<span class="anchor" id="team"></span>
<div class="container-fluid" id="teamBox">
<div class="row">
<div class="col-sm-12">
<h2 class="sectionHeader">Meet the team</h2>
<p class="sectionText">pictures of team go here</p>
</div>
</div>
</div>
<span class="anchor" id="photos"></span>
<div class="container-fluid" id="workBox">
<div class="row">
<div class="col-sm-12">
<h2 class="sectionHeader">Our Work</h2>
<p class="sectionText">pictures go here</p>
</div>
</div>
</div>
<span class="anchor" id="shirts"></span>
<div class="container-fluid" id="shirtBox">
<div class="row">
<div class="col-sm-12">
<h2 class="sectionHeader">T-shirts Preview</h2>
<p class="sectionText">pictures of tshirts go here</p>
</div>
</div>
</div>
<span class="anchor" id="contact"></span>
<div class="container-fluid" id="socialBox">
<div class="row">
<div class="col-sm-12">
<h2 class="sectionHeader">Contact Us</h2>
<p class="sectionText">links to social media and contact us form</p>
</div>
</div>
</div>

Highlight menu on scroll not working

I am trying to highlight a menu link on scroll, when the associated element comes into view. I saw this answer, and I'm trying to write it in pure JavaScript. The problem is, when I scroll down, the menu links randomly get the active` class.
What am I doing wrong, and how can I fix it?
JSFiddle
window.addEventListener('scroll', selectLink)
var sections = {
link1: document.getElementById('1'),
link2: document.getElementById('2'),
link3: document.getElementById('3'),
link4: document.getElementById('4'),
};
function selectLink() {
var prevTarget = document.querySelector('.active');
var docHeight = document.documentElement.clientHeight;
for (var sectionKey in sections) {
if (!sections.hasOwnProperty(sectionKey)) continue;
var sectionKeyRect = sections[sectionKey].getBoundingClientRect();
if ((window.pageYOffset || doc.scrollTop) >= sectionKeyRect.top) {
prevTarget.classList.remove('active');
document.querySelector('#' + sectionKey).classList.add('active');
}
}
}
* {
margin: 0;
padding: 0;
}
#main {
width: 75%;
float: right;
}
#main div.target {
background: #ccc;
height: 400px;
}
#main div.target:nth-child(even) {
background: #eee;
}
#nav {
width: 25%;
position: relative;
}
#nav nav {
position: fixed;
width: 25%;
}
#nav a {
border-bottom: 1px solid #666;
color: #333;
display: block;
padding: 10px;
text-align: center;
text-decoration: none;
}
#nav a:hover,
#nav a.active {
background: #666;
color: #fff;
}
<section id="main">
<div class="target" id="1">TARGET 1</div>
<div class="target" id="2">TARGET 2</div>
<div class="target" id="3">TARGET 3</div>
<div class="target" id="4">TARGET 4</div>
</section>
<aside id="nav">
<nav>
<a id="link1" class="active">First</a>
<a id="link2">Second</a>
<a id="link3">Third</a>
<a id="link4">Fourth</a>
</nav>
</aside>

Looking for ways to refactor my jQuery code for a div toggle I created

I wrote some code with three things in mind:
Highlighting a selection's border using 'on click'.
Selecting one item will remove the highlight from the other item.
The ability to deselect each item on click.
I've managed to get everything working for the most part, but I don't particularly like how complex the code is for the radial dot that appears when one item is selected.
Below is an example of what I'm talking about, particularly I'm looking for ways to refactor the code below into something a little more legible (shorter).
$(this).children('.radial').children().toggleClass('checked').parents('.itembox')
.siblings().children('.radial').children().removeClass('checked');
Here's a working example for more context (line 10):
var raceInternet = false;
var racePhone = false;
var raceTv = false;
$(function() {
var $targetDiv = $('#race-internet > .itembox');
var $radialDot = $('.radial > .center-dot');
$targetDiv.on('click', function() {
$(this).toggleClass('user-selected').siblings().removeClass('user-selected');
//Is it possible to refactor Line 10?
$(this).children('.radial').children().toggleClass('checked').parents('.itembox').siblings().children('.radial').children().removeClass('checked');
if ($targetDiv.is('.user-selected')) {
raceInternet = true;
} else {
raceInternet = false;
}
})
})
.itembox-container {
display: flex;
}
.boxes-2 {
width: calc((100% - 25px)/2);
margin: 10px;
padding: 10px;
}
.itembox {
position: relative;
display: inline-block;
border: 5px solid #e8e8e8;
border-radius: 10px;
cursor: pointer;
}
.user-selected {
border: 5px solid #E16E5B;
}
.itembox h4 {
color: #22ddc0;
font-weight: 700;
}
span.price {
display: inline-block;
font-weight: 400;
float: right;
color: #22ddc0;
}
.itembox > ul {
list-style: none;
}
.itembox > ul > li {
line-height: 3;
}
.radial {
position: absolute;
float: right;
height: 35px;
width: 35px;
padding: 2px;
border: 5px solid #e8e8e8;
border-radius: 50%;
top: 43%;
right: 10px;
}
.center-dot {
display: none;
position: relative;
height: 21px;
width: 21px;
background-color: #E16E5B;
border-radius: 50%;
}
.checked {
display: block;
}
.prime-aux:first-of-type {
top: 150px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<section class="container">
<!-- Primary Content Container -->
<div class="prime-aux">
<div id="race-internet" class="itembox-container">
<div class="itembox boxes-2">
<h4>Gigabit Internet <span class="price">$60/mo</span></h4>
<ul>
<li>1,000 Mbps</li>
<li>No data caps</li>
</ul>
<div class="radial">
<div class="center-dot"></div>
</div>
</div>
<div class="itembox boxes-2">
<h4>Basic Internet <span class="price">$25/mo</span></h4>
<ul>
<li>25 Mbps</li>
<li>No data caps</li>
</ul>
<div class="radial">
<div class="center-dot"></div>
</div>
</div>
</div>
</div>
</section>
<!-- Primary Content Container End -->
View on JS Fiddle

You can eliminate a lot of your jQuery by just leveraging CSS. Typically, if I want to toggle a feature, I have it either display: block; or display: none; based upon a CSS selector. Then, I just use jQuery to toggle the parent element's class name. So for example:
.item.selected .checkmark {
display: block;
}
.item .checkmark {
display: none;
}
$('.item').click(function(){ $(this).toggleClass('selected') });
JSFiddle

Dynamic popup menu that adds class to parent when radio button is selected (like Trello's)

I want to create a dynamic popup menu that adds a class to "lists" parent when radio button is selected // removes classes when unselected (HTML structure below cannot change...only can change CSS and JS)
I'm trying to make the "List Popup" popup directly under each "Green Gear" icon when clicked on/ hidden when clicked off (css classes).
Whenever a radio button is selected from the popup, I need it to add a class directly into the corresponding list's parent div, while not effecting any of the other lists.
The trick (for me) is making all of this happen dynamically with 1 popup menu that sits outside of each lists divs scope.
The HTML structure cannot be changed (this has to be completely done w/ JS and CSS).
Here's what I've got so far: https://jsfiddle.net/oneeezy/t5eou67k/
$(document).ready(function () {
/* Code to play with for show/hide popup
/* Code to play with for adding/removing classes when radio checked
$('.list-layouts input').click(function () {
$('.list-layouts input:not(:checked)').parent().removeClass("blue");
$('.list-layouts input:checked').parent().addClass("blue");
});
*/
});
/* Reset Styles */
* { box-sizing: border-box; margin: 0; padding: 0; }
h1 { padding: 0 0 .25rem; }
h2 { line-height: 1.6; }
aside { background: #e2e4e6; padding: 1rem; color: gray; margin: 1rem; border: 1px dashed gray; }
aside ul { list-style: inside; }
aside span { font-style: italic; color: rgba(0, 0, 0, .78); }
.page { background: rgba(137, 96, 158, .17); margin: 2rem 0; padding: 2rem; position: relative; }
.page::before { content: "<div> ...Scope"; color: rgba(0, 0, 0, .54); position: absolute; top: 0; left: 0; }
.page::after { content: "</div>"; color: rgba(0, 0, 0, .54); position: absolute; bottom: 0; left: 0; }
.purple { background: rgba(137, 96, 158, .17); }
.green { background: lime; }
.yellow { background: yellow; }
/* Trello (default tyles) */
.wrapper { display: flex; }
.list-wrapper { flex: 1; margin: 10px; }
.list { background: #e2e4e6; position: relative; padding: 0 10px 3px; }
.icon { display: block; position: absolute; top: 0; right: 0; width: 33px; height: 38px; background: lime; text-decoration: none; font-size: 2em; line-height: 1.3; color: darkgreen; }
.card { display: block; height: 50px; background: white; border-radius: 3px; border: 1px solid #ccc; padding: .5em; margin: 0 0 .5em; }
/* List Popup */
.list-popup { display: block; width: 350px; max-height: 800px; background: yellow; border-radius: 3px; border: 1px solid #ccc; padding: 1em; }
.list-popup p { padding: 0 0 1rem; }
.list-popup p span::after { content: "<div class='list-wrapper'>"; }
.list-layouts ul { list-style: none; }
.list-normal { }
.list-normal .list { }
.list-color { }
.list-color .list * { background: skyblue; }
.list-bold { }
.list-bold .list * { font-weight: bold; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!-- Description -->
<aside>
<h1>Dynamic popup menu that adds class to lists parent when radio button is selected // removes classes when unselected</h1>
<ul>
<li>I'm trying to make the <span class="yellow">"List Popup"</span> popup directly under each <span class="green">"Green Gear"</span> icon when clicked on/ hidden when clicked off (css classes).</li>
<li>Whenever a radio button is selected from the popup, I need it to add a class directly into the corresponding list's parent div, while not effecting any of the other lists.</li>
<li>The trick (for me) is making all of this happen dynamically with 1 popup menu that sits outside of each <span class="purple">lists divs scope</span>.</li>
</ul>
</aside>
<!-- Lists -->
<div class="page">
<div class="wrapper">
<div class="list-wrapper">
<div class="list">
<h2>List (1)</h2>
⚙
<div class="card">Woohoo! Woohoo! Woohoo! </div>
<div class="card">Woohoo! Woohoo! Woohoo! </div>
<div class="card">Woohoo! Woohoo! Woohoo! </div>
</div>
</div>
<div class="list-wrapper">
<div class="list">
<h2>List (2)</h2>
⚙
<div class="card">Woohoo! Woohoo! Woohoo! </div>
<div class="card">Woohoo! Woohoo! Woohoo! </div>
<div class="card">Woohoo! Woohoo! Woohoo! </div>
</div>
</div>
<div class="list-wrapper">
<div class="list">
<h2>List (3)</h2>
⚙
<div class="card">Woohoo! Woohoo! Woohoo! </div>
<div class="card">Woohoo! Woohoo! Woohoo! </div>
<div class="card">Woohoo! Woohoo! Woohoo! </div>
</div>
</div>
</div>
</div>
<!-- List Layout popup -->
<div class="page">
<div id="listPopup" class="list-popup">
<div>
<h3>List Popup</h3>
<p>These radio buttons should add a special class to the individual <span></span> when clicked on and removed when clicked off!</p>
</div>
<form class="list-layouts">
<ul>
<li>
<input type="radio" name="listLayout" id="listNormal">
<label for="listNormal">Normal</label>
</li>
<li>
<input type="radio" name="listLayout" id="listColor">
<label for="listColor">Bold</label>
</li>
<li>
<input type="radio" name="listLayout" id="listBold">
<label for="listBold">Italic</label>
</li>
</ul>
</form>
</div>
</div>

So first we will add the class to the list wrapper of the lists parent with the following code:
$('.icon').on('click', function () {
if(!$('#listPopup').hasClass("open")){
$('#listPopup').toggleClass("open");
}
$(this).parents('.list-wrapper').siblings().removeClass('blue');
if(!$(this).parents('.list-wrapper').hasClass("blue")){
$(this).parents('.list-wrapper').toggleClass("blue");
}
});
Then we need to create an onchange function for the radios to find this class and add the new class to that list.
$('.list-layouts input').on('change', function () {
var newClass = $(this).attr("id");
// Remove the following statement if you want your classes to stack up
$('.blue').removeClass("listNormal listColor listBold");
$('.blue').addClass(newClass);
});
Here is a working fiddle of the whole thing in action Fiddle

Dot leaders with picture background

So I'm building a website for a restaurant and I'm in a pickle. I'm trying to create the menu there. The idea is to align the food name to the left, the price to the right and fill the gap between them with dots. Like this
Hamburger ............................................ $ 4.00
XXL Hamburger .................................... $ 4.00
Milkshake .............................................. $ 4.00
I found a couple of solutions, which only work if you have a background with one color and no texture. The idea was to fill the whole line with dots and set the name/price background span with the same color as the site background, so the dots wouldn't show. But I have a picture for the background.
I'm not going to post my code here, because it wouldn't really matter or help.
Is it even possible? Doesn't have to be css only, might as well be done with JavaScript.

I am kinda late, but you can quite easily do it with a radial-gradient:
.col {
display: inline-block;
vertical-align: top;
}
.names span {
width: 200px;
display: flex;
}
.prices span {
display: block;
text-align:right;
}
.names span:after {
content: "";
display: inline-block;
height: 1em;
flex-grow: 1;
background: radial-gradient(black 25%, transparent 25%) scroll repeat-x bottom left/5px 5px;
}
<div class='names col'>
<span>Hamburger</span>
<span>Hot Dogs</span>
<span>Superman Hamburger</span>
</div>
<div class='prices col'>
<span>$1.00</span>
<span>$0.50</span>
<span>$400.00</span>
</div>
JSFiddle Demo

It's easy to do with some simple javascript and css, here's a fiddle: jsfiddle
The key is to set the width of the div that holds the dots to the width of the column minus the width of the food name minus the width of the price, and to make sure there are more than enough dots to cover the distance, and to set overflow: hidden for the dot div.
$(".menu-row").each(function(index, element) {
var menuRowWidth = $(element).width();
var foodItemWidth = $(element).children('.food-item').width();
var priceWidth = $(element).children('.price').width();
var $dotFiller = $(element).children('.dot-filler');
var dotFillerWidth = menuRowWidth - foodItemWidth - priceWidth;
$dotFiller.width(dotFillerWidth + "px");
});
Then float the item and dot div left, the price right, all within a set width column. It's also important that overflow: hidden is set for the dots, because when we set the width of that div in javascript we want all extra dots to just be cut off. The CSS:
.food-item {
float: left
}
.dot-filler {
overflow: hidden;
width: 0;
float: left;
}
.price {
float: right;
}
.menu-row {
width: 400px;
}
Then structure your html as follows:
<div class="menu-row">
<div class="food-item">Steak</div>
<div class="dot-filler">............................................................................................</div>
<div class="price">$18.00</div>
</div>
<div class="menu-row">
<div class="food-item">Hamburger</div>
<div class="dot-filler">............................................................................................</div>
<div class="price">$8.00</div>
</div>

You can use a wrapper to set a fix width of your Name + Dots.
The css will look like this:
.wrapper {
width: 300px;
overflow: hidden;
display: inline-block;;
white-space: nowrap;
}
The HTML like this:
<div>
<ul class="noDisc">
<li>
<div class="wrapper">
<span>HAMBURGER </span>
<span>...............................................................</span>
</div>
<span>$ 40.00</span>
</li>
<li>
<div class="wrapper">
<span>FRIED CHIKEN </span>
<span>...............................................................</span>
</div>
<span>$ 13.00</span>
</li>
<li>
<div class="wrapper">
<span>STEAK ON A STICK </span>
<span>...............................................................</span>
</div>
<span>$ 99.00</span>
</li>
</ul>
</div>
Live sample:
fiddle

Use display:table; and display: table-cell; for the divs inside the list-elements and border-bottom: Xpx dotted black; for the dots.
ul{
margin: 0;
padding: 0;
}
ul li{
display: table;
width: 100%;
}
ul li div {
display: table-cell;
}
ul li div.food {
padding-right: 5px;
}
ul li div.dots {
border-bottom: 1px dotted #000;
width: 100%;
position: relative;
top: -4px;
}
ul li div.price {
padding-left: 5px;
}
<ul>
<li>
<div class="food">Spaghetti</div>
<div class="dots"> </div>
<div class="price">10.00$</div>
</li>
<li>
<div class="food">Spaghetti</div>
<div class="dots"></div>
<div class="price">10.00$</div>
</li>
<li>
<div class="food">Spaghetti</div>
<div class="dots"></div>
<div class="price">10.00$</div>
</li>
</ul>

Thanks. I used what you had here and improved on it. This code is meant for woocommerce product items, but can be edited for whatever you need. $containerElement is the element you are measuring the width of.
/**
* dotFiller
* adds dynamic dot leaders between product title and count element (<mark>)
* #return void
*/
var dotFiller = function(){
var $containerElement = $('ul.products li.product.has-children h2'),
df = '<div class="df">.....................................................................</div>';
$containerElement.each(function(i,el){
var $el = $(el),
w = $el.width(),
mw = $el.find('mark').width(),
tw = $el.find('span').width(),
dfw = (w - mw - tw) - 24;
// if its not there, lets add it
if (!$(el).has('.df').length){
$el.find('span').after(df);
}
$el.find('.df').css('width',dfw + "px");
});
};
dotFiller();
With this code, you can update/ recalculate on resize like so :
$('window').on('resize',function(){ dotFiller(); });
And here is my css for the internal elements:
mark {
background-color: transparent;
color: $secondary;
display: inline-block; float: right;
font-weight: normal;
}
div.df {
overflow: hidden;
display: inline-block;
margin-left: 10px;
position: relative;
top: 2px;
font-weight: normal;
opacity: 0.8;
}
I hope this helps someone!

Use a div that has a flex spacer with a border-bottom to achieve easy leader dots... The flex layout seems to be the most elegant solution. No pseudo-elements, or left and right block display, etc... Very simple...
HTML
<div class="list-item">
<div class="header-row">
<h4>Menu</h4>
</div>
<br>
<div class="list-item-row">
<div class="left">Hamburger</div>
<div class="dots"></div>
<div class="right">$5.00</div>
</div>
<div class="list-item-row">
<div class="left">Hamburger (XXL)</div>
<div class="dots"></div>
<div class="right">$7.50</div>
</div>
<div class="list-item-row">
<div class="left">Milkshake</div>
<div class="dots"></div>
<div class="right">$3.50</div>
</div>
<div class="list-item-row">
<div class="left">Pickle</div>
<div class="dots"></div>
<div class="right">Free</div>
</div>
</div>
CSS
#import url("https://fonts.googleapis.com/css?family=Lato|Montserrat:400,700|Roboto:400,700");
* {
margin: 0;
padding: 0;
}
button {
font-family: "Roboto";
font-size: 16px;
padding: 5px;
border-radius: 3px;
border: solid #424242 1px;
}
.list-item {
display: flex;
flex-direction: column;
justify-content: flex-start;
align-items: flex-start;
margin: 20px;
font-family: "Lato";
background: #f0f0f0;
padding: 10px;
border: solid #e0e0e0 1px;
}
.list-item-row,
.header-row {
width: 100%;
display: flex;
flex-direction: row;
justify-content: space-between;
align-items: center;
.left,
.right {
font-family: "Roboto";
}
.right {
color: blue;
}
}
.dots {
flex: 1 0 0;
border-bottom: dotted 2px #b0b0b0;
margin-left: 1em;
margin-right: 1em;
}
See Codepen here => https://codepen.io/anon/pen/vVZmxB