How to change the properties of mat-select when the option is on?
<mat-select class="selector">
<mat-option><mat-option>
</mat-select>
.selector:focus {
color: green;
}
I tried using focus but it didn't work very well and I could click on the pad to select without opening the options.
Solution: Solved the problem using
.mat-select[aria-expanded="true"] {
color: green
} 
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I solved this problem using .mat-select[aria-expanded="true"] { color: green }