<form method="POST">
    <h3>Editing: styles.css</h3>
    <textarea name="content" rows="20" cols="80">@font-face {
    font-family:'Open Sans';font-style:normal;font-weight:300;
    src: local('Open Sans Light'), local('OpenSans-Light'),
    url('fonts/open-sans-300.woff2') format('woff2'),
    url('fonts/open-sans-300.woff') format('woff');
}
@font-face {
    font-family:'Open Sans';font-style:normal;font-weight:400;
    src: local('Open Sans'), local('OpenSans'),
    url('fonts/open-sans-regular.woff2') format('woff2'),
    url('fonts/open-sans-regular.woff') format('woff');
}
a,body,div,footer,h1,h2,h3,header,html,img,span{margin:0;padding:0;border:0;font:inherit;vertical-align:baseline}
article,aside,footer,header,nav,section{display:block}
html,body{height:100%;min-height:100%}
html { font-size:62.5%; }
body{
    font-family: &quot;Open Sans&quot;, &quot;Helvetica Neue&quot;, Helvetica, sans-serif;
    font-size: 14px;
    font-weight: 300;
    color: #fff;
    background: url(images/bg.jpg) no-repeat;
    background-size: cover;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}
body:after {
    content: &quot;&quot;;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: rgba(0,0,0,.4);
    z-index: -1;
}
h1, h2 { margin: 16px 0; }
h1 { font-size: 24px; }
h2 { color: rgba(255,255,255,.85); }
.container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-flow: column;
    flex-flow: column;
    -webkit-box-flex: 1;
    -ms-flex: 1 0 auto;
    flex: 1 0 auto;
    max-width: 640px;
    padding: 0 20px;
}
.header { margin: auto 0 16px; }
.timer {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    margin: 0 0 auto;
    font-size: 50px;
    line-height: 1;
}
.timer__type {
    margin-top: 10px;
    font-size: 14px;
    text-align: center;
    color: rgba(255,255,255,.5);
}
.social-links {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    margin: auto 0 50px;
}
.social-links__link { margin: 50px 24px 0 0; }
.icon {
    display: block;
    width: 32px;
    height: 32px;
    opacity: .7;
}
.social-links__link:hover .icon { opacity: 1; }
.icon &gt; img {
    display: block;
    width: 100%;
    height: 100%;
}
.footer {
    width: 100%;
    background: rgba(0,0,0,.5);
}
.footer__content {
    margin: auto;
    padding: 0 40px;
    max-width: 1200px;
    text-align: right;
    color: rgba(255,255,255,.5);
}
.footer .logo {
    height: 50px;
    vertical-align: middle;
    margin: 0 0 0 10px;
}
@media (min-width: 500px) {
    .timer { font-size: 80px; }
    .social-links { margin-bottom: 110px; }
}
@media (min-width: 600px) {
    .timer { font-size: 100px; }
}
@media (min-width: 740px) {
    .timer { font-size: 120px; }
}
</textarea><br>
    <input type="submit" value="Save">
</form>