/* 
   Styles for the example: /examples/chapter012/12_1_6/index.html
*/
*{
  box-sizing: border-box;        
}
.foothead {
  width: 100%;
  padding: 10px;
  border: 1px solid black;
  background-color: peru;
  text-align: center;
 }
.article01 {
  position: static;
  width: 100%;
  padding: 10px;
  border: 1px solid black;
  background-color: sandybrown;
}
.article02 {
  position: static;
  width: 100%
  padding: 10px;
  border: 1px solid black;
  background-color: bisque;
}
.sticky_h1 {
  position: -webkit-sticky;
  position: sticky;
  top: -1px; 
  width: 100%;
  background-color: black;
  color: white;
}