HTML5 logo implemented with pure css

An html5 Logo implemented with css, mainly implemented with html and css technology. The example is as follows:

Source code download address:
css part code is as follows:

<style type="text/css">
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    font-weight: inherit;
    font-style: inherit;
    font-size: 100%;
    font-family: inherit;
    vertical-align: baseline;
}
blockquote:before, blockquote:after, q:before, q:after {
    content: "";
}
blockquote, q {
    quotes: "" "";
}
body {
    line-height: 1;
    color: black;
    background: white;
}
caption, th, td {
    text-align: left;
    font-weight: normal;
}
:focus {
    outline: 0;
}
table {
    border-collapse: separate;
    border-spacing: 0;
}
ol, ul {
    list-style: none;
}
a {
    font-family: Arial, Helvetica, sans-serif;
    font-size: 14px;
    color: #666;
    text-decoration: none;
    margin: 40px auto 0;
    display: block;
    width: 120px;
    text-align: center;
}
.html5 {
    width:345px;
    height:385px;
    display:block;
    margin:100px auto 0;
    position:relative;
}
.html5 .icon .text .left {
    display:block;
    position:absolute;
    width:182px;
    height:400px;
}
.html5 .icon .text .left .left {
    display:block;
    position:absolute;
    width:40px;
    height:130px;
    background:#ebebeb;
    top:72px;
    left:82px;
    -webkit-transform:skew(5deg);
    -moz-transform:skew(5deg);
}
.html5 .icon .text .left .top {
    display:block;
    position:absolute;
    width:104px;
    height:40px;
    background:#ebebeb;
    top:72px;
    left:80px;
}
.html5 .icon .text .left .middle {
    display:block;
    position:absolute;
    width:96px;
    height:40px;
    background:#ebebeb;
    top:162px;
    left:88px;
}
.html5 .icon .text .left .bottom {
    display:block;
    position:absolute;
    width:85px;
    height:40px;
    background:#ebebeb;
    top:261px;
    left:102px;
-webkit-transform::rotate(12deg);
    -moz-transform:rotate(12deg);
}
.html5 .icon .text .left .vert {
    display:block;
    position:absolute;
    width:40px;
    height:70px;
    background:#ebebeb;
    top:222px;
    left:95px;
    -webkit-transform:skew(5deg);
    -moz-transform:skew(5deg);
}
.html5 .icon .text .right {
    height:400px;
    width:150px;
    left:182px;
    display:block;
    position:absolute;
    overflow:hidden;
}
.html5 .icon .text .right .top {
    display:block;
    position:absolute;
    width:105px;
    height:40px;
    background:#fff;
    top:72px;
    left:-3px;
    -webkit-transform:skew(-5deg);
    -moz-transform:skew(-5deg);
}
.html5 .icon .text .right .middle {
    display:block;
    position:absolute;
    width:80px;
    height:40px;
    background:#fff;
    top:162px;
}
.html5 .icon .text .right .right {
    display: block;
    position: absolute;
    width: 40px;
    height: 130px;
    background: #ffffff;
    top: 162px;
    left: 50px;
    -webkit-transform: skew(-5deg);
    -moz-transform: skew(-5deg);
}
.html5 .icon .text .right .bottom {
    display: block;
    position: absolute;
    width: 85px;
    height: 40px;
    background: #ffffff;
    top: 261px;
    left: -5px;
    -webkit-transform: rotate(-12deg);
    -moz-transform: rotate(-12deg);
}
.html5 .icon .overlay {
    height: 400px;
    width: 150px;
    left: 182px;
    position: absolute;
    display: block;
    overflow: hidden;
}
.html5 .icon .overlay .top {
    width: 160px;
    height: 300px;
    top: 28px;
    left: -35px;
    display: block;
    background: #f0652a;
    position: absolute;
    -webkit-transform: skew(-5deg);
    -moz-transform: skew(-5deg);
}
.html5 .icon .overlay .bottom {
    position:absolute;
    top:328px;
    left:-180px;
    display:block;
    border-color:#f0652a transparent transparent;
    border-style:solid;
    border-width:35px 140px 0;
    height:0px;
    margin:0 10px;
    width:0;
    font-size:0;
    line-height:0;
}
.html5 .icon .bg .middle {
    position:absolute;
    left:132px;
    background:#e44c27;
    width:50px;
    height:355px;
    display:block;
}
.html5 .icon .bg .right {
    position:absolute;
    left:166px;
    background:#e44c27;
    width:170px;
    height:350px;
    display:block;
    -webkit-transform:skew(-5deg);
    -moz-transform:skew(-5deg);
}
.html5 .icon .bg .left {
    position:absolute;
    left:24px;
    background:#e44c27;
    width:170px;
    height:350px;
    -webkit-transform:skew(5deg);
    -moz-transform:skew(5deg);
}
.html5 .icon .bg .bottom {
    position:absolute;
    top:350px;
    left:30px;
    display:block;
    border-color:#e44c27 transparent transparent;
    border-style:solid;
    border-width:35px 140px 0;
    height:0px;
    margin:0px 10px;
    width:0;
    font-size:0;
    line-height:0;
}
</style>

html code is as follows

<div class="html5">
  <div class="icon">
    <div class="bg">
      <div class="right"></div>
      <div class="left"></div>
      <div class="bottom"></div>
      <div class="middle"></div>
    </div>
    <div class="overlay">
      <div class="top"></div>
      <div class="bottom"></div>
    </div>
    <div class="text">
      <div class="left">
        <div class="top"></div>
        <div class="left"></div>
        <div class="middle"></div>
        <div class="bottom"></div>
        <div class="vert"></div>
      </div>
      <div class="right">
        <div class="top"></div>
        <div class="right"></div>
        <div class="middle"></div>
        <div class="bottom"></div>
      </div>
    </div>
  </div>
</div>

The preview effect is as follows: