@media (min-width:1024px){.mian{width:500px}}@media (min-width:1100px){.mian{width:600px}}@media (min-width:1280px){.mian{width:700px}}@media (min-width:1366px){.mian{width:800px}}@media (min-width:1440px){.mian{width:900px}}@media (min-width:1680px){.mian{width:1000px}}@media (min-width:1920px){.mian{width:1200px}}