Vorlage:Messagebox/style.css

.messagebox {
  background-color: #f8f9fa;
  border-color: #eaecf0;
  border-width: 1px 1px 0.2em;
  border-left-width: 10px;
  border-style: solid;
  box-shadow: 0 1px 2px 1px rgba(0, 0, 0, 0.02);

  border-spacing: 3px;
  margin: 0 0 1.5em 2em;
  margin-left: auto;
  margin-right: auto;
  padding: .2em;

  line-height: 1.5em;
}