#master{z-index:2;position:absolute;top:43.5%}#floor{width:80%}.center-block{display:block;margin-left:auto;margin-right:auto}@media (min-width:1200px){.landing{max-width:1360px;max-height:540px;overflow:hidden}}@media (min-width:1300px){.landing{max-width:1300px;max-height:540px;overflow:hidden}}@media (min-width:1800px){.landing{max-width:1900px;max-height:1300px;overflow:hidden}}