html,body{
  height:100%;
  font-size: 14px;
  z-index:200;
}
body{
  background-color:#f44336;
  color:white;
}
ul,li{
  list-style:none;
}
.clicable{
  cursor:pointer;
}
.center{
  text-align: center;
}
.marged{
  width: 90%;
  margin: auto;
}
#mask8{
  display: none;
}