.color1 {
    
    display: block;
    background: #ffc107;
    width: 100%;
    height: 150px;
    padding: 20px;
    margin: 5px;
}

.color2 {

  display: block;
  background: black;
  width: 100%;
  height: 150px;
  padding: 20px;
  margin: 5px;
  color: white;
  
}