html, body
{
    margin: 0;
    padding: 0; /*background: #F2C337 url(../images/base_bg.png) top repeat-x;*/
    background-color: #E0E0E0;
    width: 100%;
    height: 100%;
    color: #FFF;
    font-size: 12px;
    font-family: tahoma;
}

.mid {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}