@media (min-width: 993px) and (max-width: 1199px) {}
@media (min-width: 700px) and (max-width: 992px) {}
@media (min-width: 544px) and (max-width: 699px) {}
@media (max-width: 543px) {}
@media (min-width: 1199px) {}
原文：http://www.cnblogs.com/circleone/p/7131110.html