Body overflow

by btevfik

HTML

<div id="a"></div>
 <div id="b"></div>

CSS

html {
  overflow: auto;
}
body {
  height: 500px;
  width: 500px;
  border: solid blue 4px;
  overflow: hidden;
}
#a {
  height: 100px;
  width: 100px;
  background-color:red;
}
#b {
  height: 600px;
  width: 100%;
  background-color:grey;
}