demo.css

body {
    font: normal .80em 'trebuchet ms', arial, sans-serif;
    background: #F5F5EE;
    color: #555;
    margin: 20px;
}

code {
    font-size: 17px;
}

h1>code {
    font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
    color: #000;
    font-weight: normal;
}

ul>li {
    list-style-type: none;
    background: url(images/bullet.png) no-repeat;
    margin: 0 0 0 0;
    padding: 0 0 4px 25px;
    line-height: 1.5em;
}

.semple>thead>tr>td {
    align-content: center;
    text-align: center;
}

.semple>thead>tr:first-child {
    color: #1a727c;
}

.semple tbody td {
    vertical-align: top;
}

.section {
    margin-top: 40px;
    margin-left: 30px;
}

.semple-section {
    -webkit-border-radius: 23px;
    -moz-border-radius: 23px;
    border-radius: 23px;
    background: white;
    border: 1px solid gray;
    min-width: 1400px
}

.semple>tbody>tr>td {
    padding: 10px;
    border-left: 3px solid #555;
}

.semple>tbody>tr>td:first-child {
    border-left: none;
}

.semple-section>h2 {
    text-align: center;
    margin-top: 7px;
    margin-bottom: 10px;
}

.semple-section pre {
    border: none;
}

.inner-table {
    border-collapse:collapse;
}

.inner-table>thead>tr>td {
    border: 1px solid black;
    padding:5px;
    vertical-align: middle;
    font-weight:bold;
}

.inner-table>thead>tr>td[colspan] {
    text-align:center;
}

.inner-table>tbody>tr>td {
    color: #777;
    border-bottom: 1px solid #ccc;
    padding: 5px;
}

.inner-table>tbody>tr:hover>td {
    
}

.inner-table>tfoot>tr>td {
    border: 1px solid black;
    padding:5px;
    vertical-align: middle;
    font-weight:bold;
}

.inner-table>tbody>tr {
    border-right: 1px solid black;
    border-left: 1px solid black;
}