#topext {
  position: fixed;
  left: 0px;
  top: 0;
  z-index: 2;
  background: inherited;
}

#topext {
  width: 99%;
  height: 110px;
}

#top, #left, #right, #bottom {
  position: fixed;
  left: 0px;
  top: 0;
  z-index: 2;
  background: inherited;
}

#top {
  width: 98vw;
  height: 130px;
  background-color: aliceblue;
}

#bottom {
  width: 100vw;
  height: 3vh;
}

#bottom {
  top: auto;
  bottom: 0;
  height: 25px;
}

#left {
  height: 100%;
  width: 32px;
} 

#right {
  height: 100%;
  width: 1px;
  left: auto;
  right: 0;
}

#areaprincipal {
	position: relative;
	top: 135px;
	z-index: 1;
	padding: 5px; /* prevent content from being overlapped */
	left: 0px;
	width: 100vw;
	height: 100vh;
  display: flex; 
  flex-direction: column;
}