h1{
      font-family: sans-serif;
      text-align: center;
      font-size: 200px;
      margin: 0px;
    }
    p{
      font-family: sans-serif;
      text-align: center;
      font-size: 200%;
    }
    img{
      border-radius: 15px;
      margin-left: auto;
      margin-right: auto;
      display:block;
      width: 30%;
      transition-duration: 0.5s;
    }
   body{
    background: linear-gradient(45deg,white,azure);
    transition-duration: 1s;
   } 
#b{
     transition-duration: 1s;
} 
img:hover{
 width: 35%;
}