.slogan_box{
		position:absolute;z-index:10;
		left:50%;top:50%;margin-left:-219px;margin-top:-146px;
		text-align:center;
	}
	.ship { animation: shipMove 4s linear 0s infinite alternate forwards; }
	@keyframes shipMove { 
		0%{margin:-0px 0 0 -80px;}  
		10%{margin:-3px 0 0 -80px;}  
		30%{margin:-6px 0 0 -40px;}  
		50%{margin:-0px 0 0 -0px;}  
		70%{margin:6px 0 0 40px;}  
		90%{margin:3px 0 0 80px;}  
		100%{margin:0px 0 0 80px;}  
	}