#firebug-warning {
  background: #ffd;
  border: 1px solid #f7df92;
  color: #333;
  margin: 0 0 0.2em 0;
  text-align: center;
}
#firebug-warning p {
  margin: 0 1em;
  padding: 0.3em;
}
#firebug-warning a.close {
  background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQAgMAAABinRfyAAAADFBMVEXf4ueZmZnu7u53d3fvpLkJAAAAT0lEQVR42hXMsRWAIBAE0b31yC8xtwpTKIHEfijJEqAjYrkn4gQ/HAkZQ/cLDzMQOJNU0rRwqlWiRRDdFyvCdBEbKN4T3+5lO4GDNzDkX30CUBR81Y0A2gAAAABJRU5ErkJggg==") no-repeat 0 0;
  cursor: pointer;
  display: block;
  float: right;
  height: 16px;
  line-height: 12px;
  margin: -1.5em 0.4em 0 0;
  text-indent: -9999px;
  width: 16px;
}