style.css

body {
    background-color: whtie;
    font-family:Arial, Helvetica, sans-serif
  }
  
  h1, h2, h3{
    color: slateblue;
  }
  h1 {
    font-variant: small-caps;
  }

p {
    width: 800px;
}

img {
    width: 300px;
    height:auto;
}

.topnav {
    display: inline-block;
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    outline: none;
    color: #fff;
    background-color: lightgoldenrodyellow;
    border: none;
    border-radius: 15px;
    box-shadow: 0 7px #999;
  }
  
  .topnav:hover {background-color: lightsteelblue}
  
  .topnav:active {
    background-color: lightsteelblue;
    box-shadow: 0 5px #666;
    transform: translateY(4px);
  }
  .banner {
    background-color: aliceblue;
    max-width: 500px;
    border-radius: 2px 15px 15px 2px
  }