nav.main-menu{top: 30px;position: relative; margin: 0;}
#header-medias{position: absolute;height: auto;width: 133px;left: 0;right: 0;margin: 0 auto;}
nav.menuMedia {background: transparent;}
@media (min-width: 320px) and (max-width:480px){
	#header-medias{position: relative;}
}