html,
body {
height: 100%;
}

body {
background: #80bd43;
background: linear-gradient(#80bd43,#9198e5) no-repeat 0 0 fixed;
color: #222;
text-align: center;
padding: 1%;
font: 1.2em sans-serif;
}

main {
text-align: left;
max-width: 760px;
margin: 0 auto;
}