@media only screen and (max-width:1280px) {}
@media only screen and (max-width:1024px) {}
@media only screen and (max-width:980px) {}
@media only screen and (max-width:720px) {}
@media only screen and (max-width:600px) {}
@media only screen and (max-width:540px) {}
@media only screen and (max-width:480px) {}
@media only screen and (max-width:320px) {}