MediaWiki:Common.css

/* CSS placed here will be applied to all skins */
 pre { margin: 0em 0em 0em 0em; color: #302580; background-color: #e9e9e9; 
       font-family: "courier new"; border: 1px solid #a0a0a0; 
       padding: 1em; font-size: 0.85em; font-weight: bold; 
       white-space: pre; }

table, th, td {
  border: 1px solid;
}