div{
  float:left;
    text-align:center;
  }

.rojo{
  background-color:red;
  height:50px;
  width:100%;
  color:darkmagenta;
  font-family:verdana;
  font-size:20px;
 font-weight:bold;
  text-align:center;
   }

.amarillo{
  background-color:#f0e68c;
  height:400px;
  width:25%;
   }

.azul{
  background-color:blue;
  height:400px;
  width:75%;
}

.rosa{
  background-color:pink;
  height:100px;
  width:50%;

}
  
.verde{
  background-color:lightgreen;
  height:400px;
  width:50%;
  font-size:25px;
  font-style:italic;

 }

  
.gris{
  background-color:gray;
  height:50px;
  width:100%;

  }

a {
  color:green;
}

img {
  height:375px;
  width:350px;
  }

h2{
  text-align:center;
  font-style:italic;
  font-weight:bold;
  font-family:tahoma;
  text-shadow: lightslategray;
  }