body {
    background-color: lightcyan;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    color: #333;
    margin: 50px;
}

code {
    background-color:#f3f3f3;
    border: 1px solid gray;
    border-radius: 2px;
    padding: 6px 8px 3px;
    letter-spacing: 1px;
}

h1 {
    text-align: center;
}

h2, h3, h4 {
    margin-top: 3rem;
}

hr {
    border: none;
    border-top: 8px dotted #aaa;
    width: 5%;
    margin: 50px auto;
}

ul {
    margin-top: -1rem;
}

table {
    border-collapse: collapse;
}

table tr td {
    border: 1px solid grey;
    padding: 6px 20px;
}

table tr th {
    padding: 10px 20px;
    text-align: left;
}

.vertical-cell {
    writing-mode: vertical-rl;
    text-orientation: upright;
}
.important {
    font-weight: bold;
    color: indianred;
}

.code-example {
    background-color:#f3f3f3;
    padding: 10px;
    border: 1px solid gray;
    border-radius: 5px;
    line-height: 1.5rem;
}

.code-example code {
    border: none;
}

.no-border {
    margin-left: 50px;
}

.no-border tr td {
    border: none;
    padding: 0;
    width: 100px;
    font-weight: 600;
}

.no-border tr td.short {
    width: 40px;
}

#banner {
    background-color: lightgreen;
    text-align: center;
    padding: 60px;
}

#navigation, #about {
    position: relative;
    width: 50%;
    margin: 30px auto;
    height: 300px;
}

.left {
    position: absolute;
    left: 0;
}
.right {
    position: absolute;
    right: 0;
}