body {
    font-family: "Roboto Slab",sans-serif,"Apple Color Emoji";
    font-size: 16px;
    color: #666;
    line-height: 1.5;
}

.main {
    margin: 1em auto;
    padding: 0;
    max-width: 960px;
    line-height: 2;
    font-size: 24px;
}
.main h1 {
    margin: 0;
    font-size: 4em;
    line-height: 2;
    text-align: center;
    text-transform: uppercase;
}
.main h2,
.main h3 {
    margin: 0;
    font-size: 1em;
}
.main p {
    margin: 0;
}
.main blockquote {
    margin: 0;
}

.demo {
    text-indent: 1em;
}
.demo ul {
    list-style: none;
}

.line {
    position: relative;
    color: #666;
    background-color: #EFEFEF;
}
.line:before {
    content: attr(index) '.';
    position: absolute;
    right: 10px;
    margin-right: 100%;
    width: 1em;
    text-indent: 0;
    text-align: center;
    color: #666;
}
.line {
    margin: 1px 0;
    padding: 0 10px;
    background-color: #EFEFEF;
}