JSFiddle - React, Tailwind, and code Playground

HTML

<div id='box-download'>
<div class='box-cover'>
  <div class='icon-app'>
    <span class='WA'/>
  </div>
  <div class='box-title'>
   <span class='app-title'>WhatsApp</span>
   <span class='app-version'>9.24.1</span><br/>
   <span class="label-grup"><span class="tag-os mac"></span> <a href="#">Aplikasi Android</a></span>
  </div>
</div>
<div class="link-download">
 <a href="#">Download</a>
 <a href="#">Google Play</a>
</div>
<div class="link-alternative">
 <a href="#">4shared</a>
 <a href="#">Mediafire</a>
 <a href="#">Zippyshare</a>
 <a href="#">Tusfiles</a>
</div><br/>
<center><h3>

<a><b>Lebar kolom dan letak tombol download secara otomatis akan mengikuti resolusi pada settingan blog kalian</b></a></h3></center>
</div>

CSS

<style type="text/css">
#box-download,#box-download .box-cover,#box-download .box-cover .box-title{position:relative}#box-download .box-cover .icon-app,#box-download .link-download{position:absolute}#box-download,#box-download .box-cover,#box-download .box-cover .icon-app span,#box-download .box-cover .box-title,#box-download .label-grup,#box-download .link-download a{display:block}#box-download,#box-download .box-cover .icon-app span,#box-download .link-download a{width:100%}#box-download,#box-download .link-download a{border-radius:0.230769230769231em}#box-download{padding:1.15384615384615em;box-sizing:border-box;margin:0.384615384615385em 0;overflow:hidden;min-height:116px;border:1px solid #ddd;font-size:13px!important;max-width:100%;background:#FFF}#box-download a{text-decoration:none}#box-download .box-cover{min-height:6.61538461538462em;margin-right:10.0769230769231em}#box-download .box-cover .icon-app{width:75px;height:75px;top:0;left:0}#box-download .box-cover .icon-app span{background-size:100%;background-repeat:no-repeat;height:100%}#box-download .box-cover .box-title{margin-left:6.15384615384615em}#box-download .box-cover .box-title .app-title{font-weight:bold;color:#252525;font-size:150%}#box-download .box-cover .box-title .app-version{font-size:90%;color:#727171}#box-download .label-grup a{color:#666;font-size:12px}#box-download .box-cover .box-title .tag-os{overflow:hidden;display:inline-block;vertical-align:middle;width:20px;height:20px;background-image:url(https://rawgit.com/mastamvan/image/master/device.png);background-repeat:no-repeat;background-size:100%;-webkit-border-radius:50%;-moz-border-radius:50%;border-radius:50%}#box-download .box-cover .box-title .tag-os.android{background-color:#6ab344}#box-download .box-cover .box-title .tag-os.windows{background-position:0 33.33%;background-color:#1f9cf4}#box-download .box-cover .box-title .tag-os.mac{background-color:#606060;background-position:0 66.67%}#box-download .box-cover .box-title...