* {
    margin:0px;
    padding:0px;
  }
  #columna1 {
    position:absolute;
    top:0px;
    left:0px;
    width:200px;
    margin-top:10px;
    background-color:#ffff55;
  }
  #columna2 { 
    margin-left:220px;
    margin-right:20px;
    margin-top:10px;  
    background-color:#ffffbb;
  }