Добавьте table-layout: fixed
к table
и width: 50px
к th
.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
margin: 0;
padding: 0;
font-family: Arial, sans-serif;
font-size: 16px;
line-height: 1.4;
}
.rg-container {
margin: 0 auto;
padding: 1em 0.5em;
color: #222;
}
caption {
margin-bottom: 1em;
text-align: left;
}
table {
width: 650px;
margin-bottom: 0.5em;
font-size: 1em;
border-collapse: collapse;
border-spacing: 0;
table-layout: fixed;
}
thead {
border-bottom: 3px solid #ddd;
}
tr {
border-bottom: 1px solid #ddd;
color: #222;
}
tbody tr:hover {
background-color: #dcf1f0 !important;
}
.zebra tr:nth-child(even) {
background-color: #f6f6f6;
}
th {
font-weight: bold;
padding: 0.35em;
font-size: 0.9em;
text-align: center;
width: 50px;
}
td {
padding: 0.35em;
font-size: 0.9em;
word-wrap: break-word;
text-align: right;
}
td:hover {
font-weight: bold;
}
td:nth-of-type(2),
td:nth-of-type(5),
td:nth-of-type(8),
td:nth-of-type(11) {
text-align: center
}
</style>
</head>
<body>
<div class="rg-container">
<table id="abc" class="rg-table zebra">
<caption>Alpha Beta Gamma</caption>
<thead>
<tr>
<th>Col 1</th>
<th>Col 2</th>
<th>Col 3</th>
<th>Col 4</th>
<th>Col 5</th>
<th>Col 6</th>
<th>Col 7</th>
<th>Col 8</th>
<th>Col 9</th>
<th>Col 10</th>
<th>Col 11</th>
<th>Col 12</th>
<th>Col 13</th>
</tr>
</thead>
<tbody>
<tr>
<td><b>27.04.20</b></td>
<td>XXX</td>
<td>08:00</td>
<td>09:15</td>
<td>XXX</td>
<td>09:30</td>
<td>12:00</td>
<td>XXX</td>
<td>13:00</td>
<td>15:00</td>
<td>XXX</td>
<td>15:15</td>
<td>18:00</td>
</tr>
<tr>
<td><b>28.04.20</b></td>
<td>XXX</td>
<td>08:00</td>
<td>09:15</td>
<td>XXX</td>
<td>09:30</td>
<td>12:00</td>
<td>XXX</td>
<td>13:00</td>
<td>15:00</td>
<td>XXX</td>
<td>15:15</td>
<td>18:00</td>
</tr>
<tr>
<td><b>29.04.20</b></td>
<td>XXX</td>
<td>08:00</td>
<td>09:15</td>
<td>XXX</td>
<td>09:30</td>
<td>12:00</td>
<td>XXX</td>
<td>13:00</td>
<td>15:00</td>
<td>XXX</td>
<td>15:15</td>
<td>18:00</td>
</tr>
</tbody>
</table>
</div>