#leftcol, #rightcol, #header {
  display: none;
}

h1 {
  display: none;
}

.podmaz{
  display: none;
}
    
#midcol  { 
  
  display: block;
  position: relative;
  left: 100px;
  text-align: left;
  padding-top: 0px;
  padding-right: 4px;
  padding-left: 8px;
  position: relative;
  width: 420px;
  height: 100%;
  }