body{
  width: 90%;
  max-width: 900px;
  margin: 0 auto;
  font: .9em/1.2 Arial, Helvetica, sans-serif;
  font-color: pink;
  background-color: lightpurple;
}

main{
  background-color: purple;
  width: 80%;
  padding: 10px;
  color: #fff
  display: flow-root;
}
h1 h2{
  color: purple;
}
p{
  color: white;
}

body{
  background-color: pink;
  width: 50%;
  padding: 10px;
  display: flow-root;
}

.box{
  float: below;
  margin: 15px;
  width: 150px;
  height: 150px;
  border-radius: 5px;
  background-color: lightblue;
  padding: 1em;
}