Change font and background in a cell

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I would like to change the font in a cell and would also change the background color. Below is the code I tried but it does not work.

.tablepress-id-206 .row-32 .column-A {
font-family: Arial;
font-size: 36px;
font-weight: bold;
color: #FFFFFF;
background-color: #005AD6;
}