Admin CSS wrongly fixes the height of select inputs

[solarissmoke]

In wp-admin.css, we have:

#wpcontent select {
    font-size: 12px;
    height: 2em;
    padding: 2px;
}

This causes a problem when you try to use a select with the multiple attribute enabled, because instead of letting the browser use the size attribute to determine how many rows to show, the CSS shrinks the select to just one row (making the others invisible).

Removing height: 2em seems to resolve it for me, an doesn't mess up how single-option selects look.

#10331

Oops. Sorry.