CSS RWD media Queries
/* Big Tablet to 1200px (width smaller than 1140px row */
@media only screen and (max-width: 1200px) {}
/* Small Tablet to Big Tablet from 768 to 1023px */
@media only screen and (max-width: 1023px) {}
/* Small Phones to small Tablet 481-767px(Ipad) */
@media only screen and (max-width: 767px) {}
/* Small Phones 0 to 480px(Iphone) */
@media only screen and (max-width: 480px) {}