body{
  background-color: #F2F2F2;
  margin: 50px;
  font-family: sans-serif;
  width: 1200px;
}
a{
  background-color: #8AB839;
  border-bottom: 4px solid #D7DADD;
  color: #F2F2F2;
  text-decoration: none;
  padding: 10px 20px 10px 20px;
  border-radius: 10px;
  font-size: 2em;
  font-weight: bold;
}

a:active{
  top:1px;
}
.container{
  width: 800px;
  margin-right: auto;
  margin-left: auto;
}