*{margin:0;padding:0;box-sizing:border-box;list-style:none;text-decoration:none}
body{font-family:"思源黑体",sans-serif;color:#333;background-color:#f7f7f7}
@media (min-width:768px){.container{width:750px}
}@media (min-width:992px){.container{width:970px}
}@media (min-width:1300px){.container{width:1280px}
}.container{margin-right:auto;margin-left:auto;padding-left:15px;padding-right:15px}