How to increase size of the box applicable forums

[nier3]

Css is in main.css I think:

Quote:select {
border: 1px solid #aaa;
padding: 4px;
font-size: 12px;
font-family: 'Lucida Grande', Tahoma, Verdana, Arial, sans-serif;
border-radius: 5px;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
outline: 0;
}

You have to increase font-size: 12px;  but it will increase also all others "Select the forums" in your ACP.

main.css is in /forum/your-admin-folder/styles/default/main.css (if you use default theme for ACP)