1991/1991.css

html {
    background: #2637dd;
    font-family: "Roboto Mono", monospace;
    font-weight: 500;
    color: #fff;
    -webkit-font-smoothing: antialiased;
}
header {
    text-align: center;
    margin-top: 8%;
    font-family: "Rubik Mono One", sans-serif;
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
}
header p {
    margin-top: 1em;
}
.l1991 {
    font-size: 0;
    position: relative;
    display: inline-block;
    width: 45%;
    max-width: 600px;
    min-width: 250px;
    height: 60px;
    margin-right: -1%;
}
.l {
    display: inline-block;
    width: 23%;
    height: 100%;
    margin-right: 2%;
    box-sizing: border-box;
    font-size: 0;
    position: relative;
}
.l1 {
    border-bottom: solid 9px;
}
.l1:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    box-sizing: border-box;
    border: solid 9px;
    border-left: none;
    border-bottom: none;
    width: 69.23%;
    height: 100%;
}
.l9:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 56.83%;
    -webkit-border-radius: 15px;
    -webkit-border-bottom-right-radius: 0;
    -moz-border-radius: 15px;
    -moz-border-radius-bottomright: 0;
    border-radius: 15px;
    border-bottom-right-radius: 0;
    box-sizing: border-box;
    border: solid 9px;
}
.l9:after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    width: 97.89%;
    height: 56.83%;
    -webkit-border-bottom-right-radius: 20px;
    -moz-border-radius-bottomright: 20px;
    border-bottom-right-radius: 20px;
    box-sizing: border-box;
    border: solid 9px;
    border-top: none;
    border-left: none;
}

article {
    display: block;
    width: 60%;
    margin-left: 20%;
}
section {
    text-align: justify;
    font-size: 1em;
    line-height: 2em;
}
main h1 {
    margin-top: 8%;
    margin-bottom: 0;
    font-family: "Rubik Mono One", sans-serif;
    background: #fff;
    color: #2637dd;
    padding: 0.1em 0.3em;
    font-size: 1.2em;
    text-transform: uppercase;
    display: inline-block;
}

h2 {
    margin-top: 5%;
    position: relative;
}
h2::first-letter {
    color: #2637dd;
}
h2:after {
    content: "";
    display: block;
    width: 0.7em;
    height: 2em;
    background: #fff;
    position: absolute;
    top: 0;
    left: -0.05em;
    z-index: -1;
}

h1, h2, h3, h4, h5 {
    text-align: left;
    line-height: 2em;
}

strong {
    font-weight: inherit;
    color: #2637dd;
    background: #fff;
    padding-left: 0.3em;
    padding-right: 0.3em;
}
a {
    color: inherit;
    text-shadow: 1px 1px #2637dd, -1px -1px #2637dd;
    text-decoration: underline;
}
a:hover {
    text-decoration: none;
    text-decoration: line-through;
}

code {
    padding: 2px 5px;
    border: solid 1px;
    font-family: inherit;
}
pre {
    display: block;
    border: solid 2px;
    padding: 10px;
    margin: 10px 0px;
    white-space: pre-wrap;
    font-family: inherit;
    line-height: 1.5em;
    overflow: hidden;
    text-align: left;
}
p {
    margin-top: 2em;
    margin-bottom: 2em;
}

::selection {
    background: #fff;
    color: #2637dd;
    text-shadow: none;
}
::-moz-selection {
    background: #fff;
    color: #2637dd;
    text-shadow: none;
}

footer {
    margin-top: 8%;
    margin-bottom: 5%;
    text-align: center;
}

footer .l1991 {
    width: 150px;
    height: 25px;
    min-width: auto;
}
footer .l1991 .l,
footer .l1991 .l:before,
footer .l1991 .l:after {
    border-width: 4px;
}
footer .l1991 .l9:before {
    -webkit-border-radius: 7px;
    -webkit-border-bottom-right-radius: 0;
    -moz-border-radius: 7px;
    -moz-border-radius-bottomright: 0;
    border-radius: 7px;
    border-bottom-right-radius: 0;
}
footer .l1991 .l9:after {
    -webkit-border-bottom-right-radius: 8px;
    -moz-border-radius-bottomright: 8px;
    border-bottom-right-radius: 8px;
}
footer nav {
    margin-top: 3%;
    border: 4px ridge;
    background: #e9e9e9;
    width: auto;
    display: inline-block;
    font-size: 0;
}
footer nav a {
    width: 60px;
    height: 60px;
    padding: 10px;
    box-sizing: border-box;
    display: inline-block;
    background: #e9e9e9;
    border: 2px outset;
    vertical-align: top;
}
footer nav a:active {
    border-style: inset;
}
footer nav a.url {
    position: relative;
}
footer nav a.url:after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
    width: 20px;
    height: 20px;
    background: url("http://www.urlysses.com/img/smile.gif");
}

.fork {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1;
    text-align: center;
    text-shadow: 1px 1px 0px #fff;
    width: 300px;
    height: 30px;
    line-height: 30px;
    color: #000;
    text-decoration: none !important;
    background: #e9e9e9;
    border: 3px inset #fff;
    font-weight: 900;
    -webkit-transform: rotate(45deg) translate(30%, -75%);
    -moz-transform: rotate(45deg) translate(30%, -75%);
    -ms-transform: rotate(45deg) translate(30%, -75%);
    transform: rotate(45deg) translate(30%, -75%);
}


/* "browser" */
.browser {
    background: #e9e9e9;
    border: solid 1px #000;
    box-shadow: 6px 6px 0px #000;
    position: relative;
    box-sizing: border-box;
    color: #000;
    margin: 0;
    padding: 0;
}
.browser:before {
    content: "";
    pointer-events: none;
    position: absolute;
    border: solid 1px #000;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
}
.browser:after {
    content: "EXAMPLE FILES";
    position: absolute;
    top: 10px;
    left: 1%;
    right: 1%;
    height: 20px;
    background: #2637dd;
    color: #fff;
    line-height: 20px;
    text-align: center;
    border: solid 1px #000;
    box-sizing: border-box;
    font-size: 0.5em;
    letter-spacing: 1px;
}
.browser .tabs {
    position: absolute;
    box-sizing: border-box;
    border: solid 1px #000;
    top: 40px;
    left: 1%;
    width: 98%;
    height: 30px;
    display: table;
    padding: 0;
    margin: 0;
    background: none;
}
.browser .tabs div {
    color: #aaa;
    text-shadow: 1px 1px 0px #fff;
    font-size: 0.8em;
    line-height: 30px;
    display: table-cell;
    vertical-align: middle;
    border: 3px outset;
    box-sizing: border-box;
    cursor: pointer;
    padding: 0px 10px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 100px;
}
.browser .tabs div:hover {
    color: #777;
}
.browser .tabs div:active {
    border-style: inset;
}
.browser .tabs div.selected {
    color: #000;
}
.browser pre {
    background: #fff;
    position: relative;
    border: solid 1px #000;
    box-sizing: border-box;
    margin-left: 1%;
    margin-top: 90px;
    width: 98%;
    display: none;
}
.browser pre.selected {
    display: block;
}
.browser .keyword-wrapper {
    color: #1FAAAA;
}
.browser .keyword {
    color: #FF0086;
}
.browser .number {
    color: #FD8900;
}
.browser .string {
    color: #3777E6;
}
.browser .comment,
.browser .comment * {
    color: #989898;
}
.browser *::selection {
    background: #dedede;
}
.browser *::-moz-selection {
    background: #dedede;
}


/* media queries */
@media all and (max-width: 900px) {
    body {
        font-size: 14px;
    }
    article {
        width: 80%;
        margin-left: 10%;
    }
}
@media all and (max-width: 600px) {
    body {
        font-size: 12px;
    }
    main h1 {
        display: block;
    }
    article {
        width: 90%;
        margin-left: 5%;
    }
    .fork {
        font-size: 10px;
        width: 200px;
        height: 20px;
        line-height: 20px;
    }
}