File: index.css

html, body {
    margin: 0;
    padding: 0;
    font: 13px Arial;
    color: #555
}

h1 {
    font-size: 42px;
    text-align: center
}

.small {
    font-size: 20px
}

.min-gap {
    padding: 10px 0;
    margin: 0
}

h1, h2, a, em, pre {
    color: #4183C4
}

.slide-show-wrapper {
    border: solid 1px #ccc;
    margin: 0 auto
}

.slide {
    width: 900px;
    height: 500px;
    text-align: center;
    display: table-cell;
    vertical-align: middle;
    font-size: 30px
}

pre {
    font-size: 18px;
    text-align: left;
    padding: 10px;
    margin: 0;
    border: solid 1px #ddd;
    display: inline-block;
    background-color: #fefefe;
    border-radius: 10px
}

.em {
    color: red
}

.slide-show li ul {
    width: 355px;
    margin: 0 auto;
    padding: 0;
    list-style: none;
    text-align: left
}

.slide-show li ul li {
    padding: 5px 0
}

.slide-show li ul li span {
    display: inline-block;
    width: 200px
}

kbd {
    display: inline-block;
    border: solid 1px #ccc;
    padding: 0;
    font: 30px Arial;
    padding: 3px 7px;
    background-color: #eee;
    border-radius: 5px;
    box-shadow: 1px 2px 2px #DDDDDD
}