body     { padding: 0; margin: 0; }
a        { text-decoration: none }

.back        { background: black url(http://res.frozent.pl/ow/maps/small/small_temple_of_anubis.jpg); background-size: cover; width: 100%; height: 100%; position: absolute; top: 0; left: 0; filter: blur(5px)}
#conteiner   { width: 70%; height: 0; margin: 20px auto; }