* {
  box-sizing: border-box;
}

form.search input[type=text] {
  margin: 15px 0 5px 5px;

  border: 1px solid grey;
  float: left;
  width: 80%;
  background: #f1f1f1;
}

form.search button {
  float: left;
  width: 20%;
  margin: 15px 15px 5px 0;
  background: #2196F3;
  color: white;
  font-size: 12px;
  border: 1px solid grey;
  border-left: none;
  cursor: pointer;
}

form.search button:hover {
  background: #0b7dda;
}

form.search::after {
  content: "";
  clear: both;
  display: table;
}