body, html {
 background-color: #f9f9f9;
 background-repeat: round;
 margin: 0;
 height: 100%; 
}

main {
 margin-left: auto;
 margin-right: auto;
 width: 40vw;
 font-family: Verdana,sans-serif;
}

h1 {
 top: 0;
 margin-left: auto;
 margin-right: auto;
 text-align: center;
}

p {
 margin-left: auto;
 margin-right: auto;
 font-size: 24px;
 line-height: 1.5;
 text-align: center;
}

img {
  display: block;
  margin: auto;
  width: 60%;
}