* {
    box-sizing: border-box;
}

body {
    padding: 16px;
    font-family: arial;
    font-size: 16px;
    background: #ddd;
}

a {
    color: #44c;
}

h1 {
    margin: 8px auto 0 auto;
    padding: 16px;
    background: #6d6d6d;
    color: #fff;
    overflow: auto;
    position: relative;
    max-width: 960px;
    border-top-left-radius: 4px;
    border-top-right-radius: 4px;
    box-shadow: 0 0 16px #ddd;
    text-align: center;
}

.intro {
    margin: 0 auto 8px auto;
    padding: 8px 25%  8px 32px;
    background: #e6e6e6;
    color: #444;
    overflow: auto;
    position: relative;
    max-width: 960px;
    border-radius: 2px;
    font-weight: bold;
}

.item {
    margin: 8px auto;
    padding: 8px 8px 8px 32px;
    background: #eee;
    overflow: auto;
    position: relative;
    max-width: 960px;
    border-radius: 2px;
    box-shadow: 0 0 16px #ddd;
}

.item.doc {
    background: #6d6d6d;
    color: #fff;
    line-height: 140%;
}

.item.doc i {
    color: #ccc;
}

.demo h3 {
    margin: 16px 0 16px 0;
}

.demo {
    float: left;
}

.scope {
    margin: 8px 0;
    width: 200px;
    height: 100px;
}

.scope.sample {
    border: 1px solid #000;
}

.code {
    width: 512px;
    padding: 8px;
    font-size: 13px;
    float: right;
    background: #222;
    color: #0c0;
    font-weight: bold;
    border-radius: 2px;
}