#biotech_sign{margin-top:-10%;width:40%;margin-left: 5%;position:relative;z-index:2}
#carosal{width:90%;margin-top:-8%;}
#biotech_central_panel{width:70%;}
#biotech_footer img{width:30%;}
#footer{z-index:-1;margin:auto;}
#biotech_footer{margin-top:-15%;width:100%;}