/* CSS <style> */

<style>
/* selector { property: value; } */

body { 
    padding:0px;
    width:500px;
    border:solid yellow 1px;
}
header {
	margin:0 auto;
	text-align:center;
	height:400px;
	width:800px;
    border-style:solid;
    border-width:5px;
    border-color:red;
}
div#Hi {
  position:absolute;
  top: 450px;
  left: 250px;
  right: 650px;
  height: 100px;
  background-color: black;
  border: 3px solid white;
  border-radius: 25px;
  text-align: center;
  font-size: 30px;
  color:white
}
div#Lo {
  position:absolute;
  top: 450px;
  left: 650px;
  right: 250px;
  height: 100px;
  background-color: black;
  border: 3px solid white;
  border-radius: 25px;
  text-align: center;
  font-size: 30px;
  color: white
}


</style>