app.css

 h1 {
 	text-align: center;
 	font-family: "Helvetica", sans-serif;
 	font-size: 55px;
 	font-style: bold;
 	padding: 5px;
 	margin-top: 0.5em;
 	margin-bottom:-0.3em;
 }

 p {
 	text-align: center;
 	font-family: "Helvetica", sans-serif;
 	font-size: 20px;
 	font-style: italic;
 	padding: 8px;
 	background: rgba(0,0,0,0.5);
 }

 h2 {
 	font-family: "Helvetica", sans-serif;
 }

 form {
 	background: url('http://pbs.twimg.com/media/BmvqIrpIQAA59fd.jpg');
 	background-size: cover;
 	padding: 10px;
 	color: ;
 }

 body {
    max-width: 900px;
    padding: 20px;
    margin: 0 auto;
 }

 @media (max-width: 900px) {
 	h1 {
        font-size: 36px;
        padding: 5px;
    }
 }

 input[type="activity"] {
      display: inline;
 }

 input[type="submit"] {
      background: rgb(0,0,0,1);
      color: black;
      align: center;