.wrapper {
  width: 880px;
  height: 660px;
  padding: 10px;
  background-color: #eee;
}

.gi {
  width: 200px;
  height: 200px;
  margin: 10px;
  background-color: blue;
  display: inline-block;
  float: left;
}

.gi: hover{
 background-color: gray;
 border-radius: 50%;
}