Is there a way to merge the two blank cells (one above 'Be' and one above 'B') with a large blank space in the middle? I attempted using colspan and rowspan in various ways without success. https://i.stack.imgur.com/tw5SE.png
This is my code:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="ex10.css">
</head>
<body>
<table style="width:800px;">
<tr class="tr1">
<th>I</th>
<th>II</th>
<th>III</th>
<th>IV</th>
<th>V</th>
<th>VI</th>
<th>VII</th>
</tr>
<tr class="tr2">
<td>H</td>
<td class="tr1"></td>
<td colspan="3" rowspan="3"></td>
<td></td>
<td>He</td>
</tr>
<tr>
<td>Li</td>
<td>Be</td>
<td>B</td>
<td>Ne</td>
</tr>
<tr class="tr4">
<td>Na</td>
<td>Mg</td>
<td>Al</td>
<td>Ar</td>
</tr>
<tr class="tr5">
<td>K</td>
<td>Ca</td>
<td>Sc</td>
<td>Ti</td>
<td>V</td>
<td>Ga</td>
<td>Kr</td>
</tr>
</table>
</body>
</html>
CSS applied:
table, th, td {
border: 1px solid black;
border-collapse: collapse;
}
.tr1, th{
color: red;
width: 110px;
}
td{
width: 110px;
height: 54px;
text-align: center;
font-weight: bold;
font-family: Calibri;
}
td:first-child {
background-color: #b4eba8;
}
td:nth-child(2):not(.tr1){
background-color: #76f9fd;
}
td:last-child{
background-color: #fadb47;
}