MediaWiki:Common.css

/* CSS placed here will be applied to all skins */

/* Four-part reference for margin, padding, etc. is: top, right, bottom, left */

div.box {
  border: 1px solid;
  padding: 5px;
  margin: 5px 10% 5px 10%;
}

div.red {
  border: red;
  background-color: red;
}

div.green {
  border: green;
  background-color: green;
}

div.blue {
  border: blue;
  background-color: blue;
}