body { background-color: #a39e9e; }
input[type=text] {
  width: 100%;
  padding: 12px 13px;
  box-sizing: border-box;
  margin: 4px 0;
  border: 2px solid Black;
  border-radius: 4px;
  background-color: coral;
  color: white;
 font-size: 13px;
}
input[type=text]:focus {
  background-color: lightgreen;
  color:black; 
 border: 2px solid blue;
  }
   input[type=submit]{
  background-color: black;
  color: white;
  padding: 12px 29px;
  text-decoration: none;
  margin: 4px 2px;
  cursor: pointer;
  border: 1.5px solid white;
  transform: translateY(4px);
}