.container { width: 100%; display: flex; display: -webkit-box; /* OLD - iOS 6-, Safari 3.1-6 */ display: -moz-box; /* OLD - Firefox 19- (buggy but mostly works) */ display: -ms-flexbox; /* TWEENER - IE 10 */ flex-flow: column wrap; justify-content: center; align-items: center; margin-top: 32px; }
    .container > * { flex: 1 0 200px; max-width: 360px; margin: auto; }
.primary {
    background-color: #FF5722;
    color: white;
    width: 100%;
}
a { color: #FF5722; text-decoration: none; }
body, html {
    background-image: url("Images/roppongi.jpg");
    background-size: cover;
    height: 100%;
    margin: 0px;
    font-family: "Roboto", Arial, Helvetica, sans-serif;
    font-size: 11pt;
}