CSS Highlight Table Row But Not When Hovering First 3 Cells - html

Question

I would like to highlight a row (change the background color) when i hover over any cell excluding the first 3 cells on the row (button cells). I also need to exclude the first row from the grid as that is the header row. (Images show desired behavior)
I have tried using many different :hover css selectors. But i cant seem to find the combination that allows me to highlight the row when hovering over any cell except the first 3.
table tr:hover td {
background-color: #e6e600;
}
<table>
<tr>
<th></th>
<th></th>
<th></th>
<th>Name</th>
<th>Age</th>
<th>Gender</th>
</tr>
<tr>
<td><button></button></td>
<td><button></button></td>
<td><button></button></td>
<th>Joe</th>
<th>37</th>
<th>Male</th>
</tr>
</table>
Thanks!!

Answer 1

The 4th, 5thth, and 6th
columns were all <th>, the cells that are in the <tbody> should be <td>, so that is corrected. Also, I added a <thead> to it as well and an extra <tr> to show that the highlight affects each <tr> separately.
In order to meet the following criteria:
no JavaScript
valid HTML and CSS only
the 4th, 5thth, and 6th <td> of any <tr> within the <tbody> should all be highlighted at once if any one of them is hovered over.
the 1st, 2nd, and 3rd <td> of any <tr> within the <tbody> should never trigger any effects when hovering over them.
A sub-table could be used to isolate the last 3 columns:
in the <tbody>, remove the last 2 <td> of each <tr>.
add colspan="3" to the last <td> of each <tr> within the <tbody>
add a <table> into each of those <td colspan="3">
add a <tr> into that <table>
add 3 <td> into that <tr>
Figure I - a sub-table
<td class='col' colspan='3'>
<table class='sub'>
<tr><td>Joe</td><td>37</td><td>Male</td></tr>
</table>
</td>
table {
table-layout: fixed;
border-collapse: collapse;
}
th {
width: 5%;
}
th:nth-of-type(4) {
width: 50%;
}
th:nth-of-type(5) {
width: 5%;
}
th:nth-of-type(6) {
width: 15%;
}
td {
border: 1px solid #000;
background: transparent;
text-align:center;
}
.col {
padding: 0;
border: 0;
outline: 1px solid #000;
outline-offset: 0;
}
.sub tr:hover td {
background: #fc0;
}
.sub {
table-layout: fixed;
border-collapse: collapse;
min-width: 100%;
padding: 0;
border: 0.5px solid #000;
}
.sub td {
padding: 5px;
border: 1px solid 0.5px;
text-align: left;
}
.sub td:first-of-type {
width: 70%;
border-left: 0;
}
.sub td:nth-of-type(2) {
width: 10%;
text-align: center;
}
.sub td:last-of-type {
width: 20%;
}
<table>
<thead>
<tr>
<th></th>
<th></th>
<th></th>
<th>Name</th>
<th>Age</th>
<th>Gender</th>
</tr>
</thead>
<tbody>
<tr>
<td><button>A</button></td>
<td><button>B</button></td>
<td><button>C</button></td>
<td class='col' colspan='3'>
<table class='sub'>
<tr><td>Joe</td><td>37</td><td>Male</td></tr>
</table>
</td>
</tr>
<tr>
<td><button>A</button></td>
<td><button>B</button></td>
<td><button>C</button></td>
<td class='col' colspan='3'>
<table class='sub'>
<tr><td>Jill</td><td>37</td><td>Female</td></tr>
</table>
</td>
</tr>
</tbody>
</table>

Answer 2

It is not fully possible without JS as CSS has no parent selector. A few browsers (Safari and Chrome Desktop) already included the :has()-selector but as said, it is not fully supported yet.
The closest thing you an do without scripting is to highlight all th in a row. That said, you can use the tr:hover selector to check for a hover on the entire row. This means the hover will also trigger if you hover the first 3 elements. The background-highlighting therefore will only be used on the th. To exclude the first row you can use the :not()-selector:
table tr:not(:nth-child(1)):hover th {
background-color: #e6e600;
}
<table>
<tr>
<th></th>
<th></th>
<th></th>
<th>Name</th>
<th>Age</th>
<th>Gender</th>
</tr>
<tr>
<td><button></button></td>
<td><button></button></td>
<td><button></button></td>
<th>Joe</th>
<th>37</th>
<th>Male</th>
</tr>
</table>