body {
  margin: 40px;
  }

.content {
  margin-top: .5%;   
  position: relative;  
  width:100%;
  height:98%; 
  margin-bottom:2%;  
  background-color: white;
  float:left;
  }

.wrapper {
  background-color: #fff;
  color: #444;
  height:600px;
}


.box {  
  border-radius: 5px;
  font-size: 150%;
}


.block {  
  margin-top: 10px;
  margin-left: 10px;
  border-radius: 4px;
  padding: 80px;
  font-size: 150%; 
  width:160px;
  color: #fff;
  background-color: #000;
  float:left;
}
.block:hover { background-color: #fff;
               color: #000;     
               font-size:150%;       
               }