h1 {color: white; text-align: center; text-shadow: 10px 12px black; box-shadow: 3px 4px blue}
body {background: linear-gradient(to right,black,purple,green);}
img {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 60%;}
.testlink:link {color: yellow;}
  .testlink:visited {color: pink}
.testlink:hover {color: blue}
.headerone:hover {text-decoration:overline;}
.testlink {font-size: 25px; text-align:center;}
#contain {text-align:center;}