examples.css

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font: normal 62.5%/1.6em Helvetica, Arial, sans-serif;
    position: relative;
    overflow: hidden;
}

h1, p {
    margin: 0;
    padding: 1em;
    font-size: 1.2em;
}

h1 {
    margin-top: 1em;
    font-size: 1.5em;
}

#header,
#layout,
#footer {
    width: 100%;
}

#header {
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    height: 14.8em;
    border-bottom: .3em solid #333;
    position: absolute;
    z-index: 10;
}

#layout {
    height: 100%;
    padding-bottom: 15em;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

#footer {
    width: 100%;
    height: 14.7em;
    border-top: .3em solid #333;
    margin-top: -15em;
    overflow: hidden;
    position: relative;
    z-index: 5;
}


#layout,
.border-box {
    -webkit-box-sizing: border-box; /* Safari/Chrome, other WebKit */
    -moz-box-sizing: border-box;    /* Firefox, other Gecko */
    box-sizing: border-box;         /* Opera/IE 8+ */
}

.scrollable {
    width: 100%;
    height: 100%;
    overflow-x: hidden;
    overflow-y: auto;
}