@media only screen and (orientation: portrait) {
    #sidebar-left, #sidebar-right {
      display: none;
    }
    #header {

  font-family: headfont, sans-serif;

  font-size: 1em; /* 30px/16=1.875em */
  text-align: center;
  color: white;
  background-color: rgb(0, 162, 255);
  padding: 1px;
}
    body {
        font-size: 200%;
    }
    #menu { font-size: 1.15em; }
    
   

}