.sisalto {
  background-color: #CCCCFF;
  padding: 0.5em 1%;
  width: 48%;
  float: left;
}

.ylatunniste {
  background-color: #FFFF99;
  width: 98%;
  height: 3em;
  padding: 0.5em 1%;
}

.vasennavi {
  background-color: #99CCFF;
  float: left;
  width: 23%;
  padding: 0.5em 1%;
}

.oikeanavi {
  background-color: #FF99CC;
  float: left;
  width: 23%;
  padding: 0.5em 1%;
}

.alatunniste {
  background-color: #66FF99;
  width: 98%;
  height: 3em;
  padding: 0.5em 1%;
  clear: both;
}