/** {
  box-sizing: border-box;
}*/
/* Create three unequal columns that floats next to each other */
.column {
  float: left;
  padding: 10px;
  height: 40%; /* Should be removed. Only for demonstration */
}

.left, .right {
  width: 25%;
  border:1px solid black;
}

.middle {
  width: 45%;
   border:0px solid #ff0000;
   text-align:center;

}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}