最近帮人 弄的godaddy的自定义建站达人页面，简单的单页面。只是加上两个网站的超链接上去。用pc的手机调试器调试的时候 遇到这个css3两个媒体功能 max-width和max-device-width 弄混淆导致要得效果总不出现
max-width指展示的最大宽度，一般是浏览器窗口宽度。
max-device-width是指所展示使用的设备支持宽度，如一般电脑分辨率1280px，手机设备支持展示宽度（安卓有种宽度如360 ，480）等.
附录: media查询
css3的max-width和max-device-width的区别
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