html, body {height:100%;}
body {text-align:center;}

img {max-width:100%;}

a:active {outline: none;}

.sign {-webkit-transition: .5s ease-in-out;-moz-transition: 1s ease-in-out;-o-transition: 1s ease-in-out;transition: .1s ease-in-out;width: 200px;}

.sign:hover {transform: rotate(-5deg);}

#logo {height:380px;}

footer {
    position: fixed;
    bottom: 0;
    width: 100%;
}