::selection {
  background-color: #000000;
  border: 1px solid white;
  color: red; 
  }


p {
  color: green;
  }

html {
  background-color: #000000;
  }

body {
  width: 600px;
  background-color: #f99999;
  margin-top: 50px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 20px 20px 20px;
  border: 5px dashed white;
  }

h1 {
  margin: 0;
  padding: 20px 0;
  color: #00539f;
  text-shadow: 1px 1px 1px black;
  text-align: center;
  }
  
img {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    }