body { padding:0; margin:0; } section { height:100vh; } .bg-word { background:#ccc; text-align:center; font-size:56px; } .bg-img:nth-child(2) { background-image:url('http://www.jq22.com/img/cs/500x500-1.png'); background-attachment:fixed; background-size:cover; background-position:center center; } .bg-img:nth-child(4) { background-image:url('http://www.jq22.com/img/cs/500x500-2.png'); background-attachment:fixed; background-size:cover; background-position:center center; } .bg-img:nth-child(6) { background-image:url('http://www.jq22.com/img/cs/500x500-3.png'); background-attachment:fixed; background-size:cover; background-position:center center; }