body {

    font-family: Arial, Helvetica, sans-serif;

    background: #f5f5f5;

    margin:0;

    padding:40px;

}

.container{

    max-width:900px;

    margin:auto;

    background:white;

    padding:30px;

    border-radius:10px;

    box-shadow:0 0 10px rgba(0,0,0,.15);

}

h1{

    text-align:center;

    margin-bottom:40px;

}