html, body {
    margin: 0;
    padding: 0;
    background-color: #eee;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.banner .heading {
    font-family: monospace;
    font-size: 4em;
    margin: 0 1%;
}

.footer {
    bottom: 0;
    position: fixed;
    display: block;
    width: 100%;
    height: 3em;
    background-color: #eee;
    box-shadow: 0px -4px 5px #333;
}
.footer a {
    /*
    this method of vertically centering text will work
    for a *single* line of text in a container
     */
    line-height: 3em;  /* footer height: 3em */
    vertical-align: middle;
    padding: 0 1em;
}

.main {
    font-size: 1.2em;
    margin: 1% auto 3em auto;  /* footer height: 3em */
    width: 90%;
}
.main .list {
    margin: 1% auto;
    box-shadow: 0px 4px 5px #333;
}
.main .list-item {
    padding: 1%;
    margin: 1% auto;
}