CSS code to change the color of header and bottom menu

[vijay]

@ThinhDinh

<pre><span><style>
[data-test="card-item"] .bottom-area {
background-color: gold;
}

Ok. One more help, in the below CSS Code:

[data-test="card-item"] .bottom-area {
background-color: gold;

If I want some nth item to be only gold, let's say the 3rd item to be gold, what will be the code?