Give CSS property to parent td using CSS - css

Question

I have referred to many options but still I am not able to apply CSS to my parent container. My table structure is like:
<td>
<div id="div1">
<div id="div2" class="colorMe"></div>
</div>
</td>
Now according to above structure if div2 has class colorMe then I want to color the entire td background in yellow.
I have used CSS like this but not working:
td > div> div.colorMe {
background-color:yellow;
}
Can you please tell me how I can color my td using css?

Answer 1

There is currently no possibility to apply CSS Rules to a parent element. There is in fact the :has Pseudoclass, which is exactly for this kind of issues, but at the moment (Nov 2017) it is not supported by any browser. The only way to achieve this would be with Javascript.

Answer 2

I know that you mentioned only using css but adding some javascript event to change a class is a very well documented approach. There are dozens of examples online and including the the script in your file takes no extra work if you use vanilla.
Here is a small example of changing a parent div's color on a click event
var box2 = document.querySelector('.color2');
box2.addEventListener("click", function() {
this.parentNode.style.backgroundColor = "white";
});
div {
width: 100px;
height: 100px;
border: 2px solid black;
}
.color1 {
background-color: red;
}
.color2 {
background-color: rebeccapurple;
width: 50px;
height: 20px;
}
<div class="color1">
<div class="color2"></div>
</div>

Answer 3

You can kind of emulate the behavior you need with the following trick:
td {
position: relative; /* make the cell a container for positioned children */
}
.colorMe::before { /* cover this container with colored pseudo element */
content: '';
position: absolute;
top: 0; right: 0; bottom: 0; left: 0;
background-color:yellow;
z-index: -1;
}
table { /* just to make the example prettier :) */
width: 100%;
height: 100px;
table-layout: fixed;
}
<table>
<tr>
<td>
Just a TD
</td>
<td>
<div id="div1">
<div id="div2" class="colorMe"></div>
</div>
</td>
<td>
Just a TD again
</td>
</tr>
</table>
It won't work, however, if you need to position something absolutely from the .colorMe element itself.