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A Pen By Zachary Beyer

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CSS Base

About CSS Base

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About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.

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HTML

            
              <div class="main">
    <div class="bubble active"></div>
    <div class="connector"></div>
    <div class="bubble"></div>
    <div class="connector"></div>
    <div class="bubble"></div>
    <div class="bubble"></div>
    <div class="connector"></div>
    <div class="bubble"></div>
</div>
!

CSS

            
              .main {
    min-width:320px;
}

.bubble
{
    border-radius:50%;
    height:40px;
    width:40px;
    background: #aaa;
    display:inline-block;
    margin:0 -3px;
}

.bubble.active
{
    background:red;
}

.connector
{
    display:inline-block;
    height:3px;
    width:10%;
    background: #aaa;
    vertical-align:middle;
    margin-top:-30px;
}
!

JS
!
999px
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