body {
    font-family: Georgia, "Times New Roman", serif;
    background: linear-gradient(#d9e7f2,#eef5fa);
    color:#222;
    max-width:900px;
    margin:40px auto;
    padding:30px;
    line-height:1.6;
}

ol {
    padding-left: 1.5em;
}

li {
    margin-bottom: 1.2em;
}

ul {
    margin-top: 0.4em;
}

.reference {
    font-style: italic;
    color: #666;
}

h1{
    text-align:center;
    color:#1f4e79;
    margin-bottom:0;
}

h2{
    color:#2f6690;
    border-bottom:2px solid #9fbcd3;
    padding-bottom:4px;
}

.subtitle{
    text-align:center;
    font-style:italic;
    color:#666;
    margin-top:4px;
    margin-bottom:40px;
}

blockquote{
    margin:20px 40px;
    padding-left:20px;
    border-left:4px solid #7fa6c2;
    color:#444;
    font-style:italic;
}

ul{
    margin-left:25px;
}

.footer{
    margin-top:50px;
    text-align:center;
    color:#777;
    font-size:0.9em;
}