JSFiddle - React, Tailwind, and code Playground

HTML

<div class="content">
    <h1>Contoh Label Blog</h1>
<ul>
   <li><a href="#">CSS</a><span>120 artikel</span></li>
   <li><a href="#">Javascript</a><span>150 artikel</span></li>
   <li><a href="#">HTML</a><span>200 artikel</span></li>
   <li><a href="#">Jquery</a><span>80 artikel</span></li>
   <li><a href="#">Tutorial</a><span>100 artikel</span></li>
</ul>
</div>

CSS

body{
    color:#fff;
    padding:20px;
    background:#efefef;
    font:normal 14px Arial,verdana,serif;
}
h1{
    margin-bottom:10px;
    font:bold 20px Arial,verdana,serif;
    text-transform:uppercase;
    margin:0 0 10px;
    padding:3px 0 3px 7px;
    border-bottom:1px solid #222;
    box-shadow: 0 1px 0 #444;
    -moz-box-shadow: 0 1px 0 #444;
    -webkit-box-shadow: 0 1px 0 #444;
}
a{
    text-shadow: 0 1px 0 #000000;
    color: #999!important;
    text-shadow: 0 1px 0 0#000;
    transition: color 0.26s ease;
    -moz-transition: color 0.26s ease;
    -webkit-transition: color 0.26s ease;
    text-decoration:none}
.content {
    background-color: #333333;
    padding: 10px;
    width: 300px;
    box-shadow: 0 1px 5px #444;
    -moz-box-shadow: 0 1px 5px #444;
    -webkit-box-shadow: 0 1px 5px #444;
}
ul li {
    -moz-transition: padding 0.26s ease 0s;
    background: url("http://3.bp.blogspot.com/-k6_8TWlD4Hw/Tzt-ABkEYsI/AAAAAAAABE0/MStiezjcvfM/s1600/icon-new-window.png") no-repeat scroll left center transparent;
    list-style-type: none;
    margin: 0 0 5px;
    padding-left: 20px;
}
ul li a{
    border-radius:0.5em;
    -moz-border-radius:0.5em;
    -webkit-border-radius:0.5em;
    -o-border-radius:0.5em;
    display:inline-block;
    margin:0;
}
ul li:hover span {
    margin-left: 20px;
    opacity: 1;
}
ul li span {
    background:#000;
    border-radius: 0 10px 10px 0;
    -moz-border-radius: 0 10px 10px 0;
    -webkit-border-radius: 0 10px 10px 0;
    color: #FFF;
    height: auto;
    margin-left: 100px;
    opacity: 0;
    position: relative;
    text-align: center;
    width: auto;padding: 2px 8px;
    transition: all 0.3s cubic-bezier(1,2,0,0) 0s;
    -moz-transition: all 0.3s cubic-bezier(1,2,0,0) 0s;
    -webkit-transition: all 0.3s cubic-bezier(1,2,0,0) 0s;
}
ul li span:before{ 
    content:"";
    width:0px;
    height:0px;
    position:absolute;
    right:100%;top:0px;
    border-width:10px;
    border-style:solid;
   ...