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HTML

              
                <!--
Lets start with a single html5 progress element. Currently our progress bar is in the indeterminate state. Lets change the status by adding 'max' and 'value' attribute to our progress element.

We are almost done styling a single progress bar, except adding fallback technique for browsers that do not support progress element. The idea is to simulate the visual styles of the progress bar using `div` and `span`.

Note:- To imitate the older browsers and help us style the fallback technique, we wil temporarily comment-out the progress tag.
-->

<ul>
	<li>
		<h2>Frontend</h2>
		
		<!-- HTML5 -->
    <p style="width:80%" data-value="80">HTML5</p>
		<progress max="100" value="80" class="html5">
			<!-- Browsers that support HTML5 progress element will ignore the html inside `progress` element. Whereas older browsers will ignore the `progress` element and instead render the html inside it. -->
			<div class="progress-bar">
				<span style="width: 80%">80%</span>
			</div>
		</progress>
		
		<!-- CSS3 -->
    <p style="width:60%" data-value="60">CSS3</p>
		<progress max="100" value="60" class="css3">
			<!-- Browsers that support HTML5 progress element will ignore the html inside `progress` element. Whereas older browsers will ignore the `progress` element and instead render the html inside it. -->
			<div class="progress-bar">
				<span style="width: 60%">60%</span>
			</div>
		</progress>
		
		<!-- jQuery -->
    <p style="width:50%" data-value="50">jQuery</p>
		<progress max="100" value="50" class="jquery">
			<!-- Browsers that support HTML5 progress element will ignore the html inside `progress` element. Whereas older browsers will ignore the `progress` element and instead render the html inside it. -->
			<div class="progress-bar">
				<span style="width: 50%">50%</span>
			</div>
		</progress>
		
	</li>
	<li>
		<h2>Backend</h2>
		
    <!-- Python -->
    <p style="width:75%" data-value="75">Python</p>
		<progress max="100" value="75" class="python">
			<!-- Browsers that support HTML5 progress element will ignore the html inside `progress` element. Whereas older browsers will ignore the `progress` element and instead render the html inside it. -->
			<div class="progress-bar">
				<span style="width: 75%">75%</span>
			</div>
		</progress>
		
		<!-- PHP -->
    <p style="width:65%" data-value="65">PHP</p>
		<progress max="100" value="65" class="php">
			<!-- Browsers that support HTML5 progress element will ignore the html inside `progress` element. Whereas older browsers will ignore the `progress` element and instead render the html inside it. -->
			<div class="progress-bar">
				<span style="width: 65%">65%</span>
			</div>
		</progress>
		
		<!-- Node.js -->
    <p style="width:35%" data-value="35">Node.js</p>
    <progress max="100" value="35" class="node-js">
			<!-- Browsers that support HTML5 progress element will ignore the html inside `progress` element. Whereas older browsers will ignore the `progress` element and instead render the html inside it. -->
			<div class="progress-bar">
				<span style="width: 35%">35%</span>
			</div>
		</progress>		
		
	</li>
</ul>

<p>Article - <a href="https://css-tricks.com/html5-progress-element/">https://css-tricks.com/html5-progress-element/</a></p>
              
            
!

CSS

              
                @import url(https://fonts.googleapis.com/css?family=Expletus+Sans);

/* Basic resets */

* { 
	margin:0; padding:0; 
	box-sizing: border-box;
}

body {
margin: 50px auto 0;
max-width: 800px;

font-family: "Expletus Sans", sans-serif;
}

li {

	width: 50%;
	float: left;
	list-style-type: none;
	
	padding-right: 5.3333333%;
}

li:nth-child(even) { margin-bottom: 5em;}

h2 {
	margin: 0 0 1.5em;
	border-bottom: 1px solid #ccc;
	
	padding: 0 0 .25em;
}

/* Styling an indeterminate progress bar */

progress:not(value) {
	/* Add your styles here. As part of this walkthrough we will focus only on determinate progress bars. */
}

/* Styling the determinate progress element */

progress[value] {
	/* Get rid of the default appearance */
	appearance: none;
	
	/* This unfortunately leaves a trail of border behind in Firefox and Opera. We can remove that by setting the border to none. */
	border: none;
	
	/* Add dimensions */
	width: 100%; height: 20px;
	
	/* Although firefox doesn't provide any additional pseudo class to style the progress element container, any style applied here works on the container. */
	  background-color: whiteSmoke;
	  border-radius: 3px;
	  box-shadow: 0 2px 3px rgba(0,0,0,.5) inset;
	
	/* Of all IE, only IE10 supports progress element that too partially. It only allows to change the background-color of the progress value using the 'color' attribute. */
	color: royalblue;
	
	position: relative;
	margin: 0 0 1.5em; 
}

/*
Webkit browsers provide two pseudo classes that can be use to style HTML5 progress element.
-webkit-progress-bar -> To style the progress element container
-webkit-progress-value -> To style the progress element value.
*/

progress[value]::-webkit-progress-bar {
	background-color: whiteSmoke;
	border-radius: 3px;
	box-shadow: 0 2px 3px rgba(0,0,0,.5) inset;
}

progress[value]::-webkit-progress-value {
	position: relative;
	
	background-size: 35px 20px, 100% 100%, 100% 100%;
	border-radius:3px;
	
	/* Let's animate this */
	animation: animate-stripes 5s linear infinite;
}

@keyframes animate-stripes { 100% { background-position: -100px 0; } }

/* Let's spice up things little bit by using pseudo elements. */

progress[value]::-webkit-progress-value:after {
	/* Only webkit/blink browsers understand pseudo elements on pseudo classes. A rare phenomenon! */
	content: '';
	position: absolute;
	
	width:5px; height:5px;
	top:7px; right:7px;
	
	background-color: white;
	border-radius: 100%;
}

/* Firefox provides a single pseudo class to style the progress element value and not for container. -moz-progress-bar */

progress[value]::-moz-progress-bar {
	/* Gradient background with Stripes */
	background-image:
	-moz-linear-gradient( 135deg,
													 transparent,
													 transparent 33%,
													 rgba(0,0,0,.1) 33%,
													 rgba(0,0,0,.1) 66%,
													 transparent 66%),
    -moz-linear-gradient( top,
														rgba(255, 255, 255, .25),
														rgba(0,0,0,.2)),
     -moz-linear-gradient( left, #09c, #f44);
	
	background-size: 35px 20px, 100% 100%, 100% 100%;
	border-radius:3px;
	
	/* Firefox doesn't support CSS3 keyframe animations on progress element. Hence, we did not include animate-stripes in this code block */
}

/* Fallback technique styles */
.progress-bar {
	background-color: whiteSmoke;
	border-radius: 3px;
	box-shadow: 0 2px 3px rgba(0,0,0,.5) inset;

	/* Dimensions should be similar to the parent progress element. */
	width: 100%; height:20px;
}

.progress-bar span {
	background-color: royalblue;
	border-radius: 3px;
	
	display: block;
	text-indent: -9999px;
}

p[data-value] { 
  
  position: relative; 
}

/* The percentage will automatically fall in place as soon as we make the width fluid. Now making widths fluid. */

p[data-value]:after {
	content: attr(data-value) '%';
	position: absolute; right:0;
}





.html5::-webkit-progress-value,
.python::-webkit-progress-value  {
	/* Gradient background with Stripes */
	background-image:
	-webkit-linear-gradient( 135deg,
													 transparent,
													 transparent 33%,
													 rgba(0,0,0,.1) 33%,
													 rgba(0,0,0,.1) 66%,
													 transparent 66%),
    -webkit-linear-gradient( top,
														rgba(255, 255, 255, .25),
														rgba(0,0,0,.2)),
     -webkit-linear-gradient( left, #09c, #f44);
}

.css3::-webkit-progress-value,
.php::-webkit-progress-value 
{
	/* Gradient background with Stripes */
	background-image:
	-webkit-linear-gradient( 135deg,
													 transparent,
													 transparent 33%,
													 rgba(0,0,0,.1) 33%,
													 rgba(0,0,0,.1) 66%,
													 transparent 66%),
    -webkit-linear-gradient( top,
														rgba(255, 255, 255, .25),
														rgba(0,0,0,.2)),
     -webkit-linear-gradient( left, #09c, #ff0);
}

.jquery::-webkit-progress-value,
.node-js::-webkit-progress-value 
{
	/* Gradient background with Stripes */
	background-image:
	-webkit-linear-gradient( 135deg,
													 transparent,
													 transparent 33%,
													 rgba(0,0,0,.1) 33%,
													 rgba(0,0,0,.1) 66%,
													 transparent 66%),
    -webkit-linear-gradient( top,
														rgba(255, 255, 255, .25),
														rgba(0,0,0,.2)),
     -webkit-linear-gradient( left, #09c, #690);
}

/* Similarly, for Mozillaa. Unfortunately combining the styles for different browsers will break every other browser. Hence, we need a separate block. */

.html5::-moz-progress-bar,
.php::-moz-progress-bar {
	/* Gradient background with Stripes */
	background-image:
	-moz-linear-gradient( 135deg,
													 transparent,
													 transparent 33%,
													 rgba(0,0,0,.1) 33%,
													 rgba(0,0,0,.1) 66%,
													 transparent 66%),
    -moz-linear-gradient( top,
														rgba(255, 255, 255, .25),
														rgba(0,0,0,.2)),
     -moz-linear-gradient( left, #09c, #f44);
}

.css3::-moz-progress-bar,
.php::-moz-progress-bar {
{
	/* Gradient background with Stripes */
	background-image:
	-moz-linear-gradient( 135deg,
													 transparent,
													 transparent 33%,
													 rgba(0,0,0,.1) 33%,
													 rgba(0,0,0,.1) 66%,
													 transparent 66%),
    -moz-linear-gradient( top,
														rgba(255, 255, 255, .25),
														rgba(0,0,0,.2)),
     -moz-linear-gradient( left, #09c, #ff0);
}

.jquery::-moz-progress-bar,
.node-js::-moz-progress-bar {
	/* Gradient background with Stripes */
	background-image:
	-moz-linear-gradient( 135deg,
													 transparent,
													 transparent 33%,
													 rgba(0,0,0,.1) 33%,
													 rgba(0,0,0,.1) 66%,
													 transparent 66%),
    -moz-linear-gradient( top,
														rgba(255, 255, 255, .25),
														rgba(0,0,0,.2)),
     -moz-linear-gradient( left, #09c, #690);
}

/* Now we are good to duplicate html code for other skills and then add the css code for the new skill based on data-skill */

  
/* THE END */
              
            
!

JS

              
                
              
            
!
999px
Two CSS properties walk into a bar. A barstool in a completely different bar falls over.

Console