html,body{
  overflow-x: hidden!important;
  font-family: 'Source Sans Pro', sans-serif;
  -webkit-font-smoothing: antialiased;
  height: 100%;
  background: #f9f9f9;
  font-size: 15px;
  background-image: url(../img/pattern/pat_03.png), url(../img/login-bg.jpg);
  background-repeat: repeat, no-repeat;
  background-position: 0 0;
  background-size: 5px 5px, cover;
}
#main_cont {
  background: rgba(255,255,255,0.5);
  padding: 20px;
  width: 520px;
  margin: 0 auto;
}