What exactly does this CSS selector with a comma match?

Question

I have a question about CSS selectors.

In my CSS file I have the following code:

.table_legenda th, td {
    text-align: left;
    vertical-align: top;
          


        

Answer 1

it selects tr inside table_legenda class , and in addition to that, all td.

The selector you want is

.table_legenda th, .table_legenda td

In this one, it selects all the th inside .table_legenda and all td inside .table_legenda