@Media最小宽度和最大宽度

我有这个@media安装程序:

HTML

 <head> <meta name="viewport" content="width=device-width, user-scalable=no" /> </head> 

CSS

 @media screen and (min-width: 769px) { /* STYLES HERE */ } @media screen and (min-device-width: 481px) and (max-device-width: 768px) { /* STYLES HERE */ } @media only screen and (max-device-width: 480px) { /* STYLES HERE */ } 

有了这个设置,它可以在iPhone上运行,但在浏览器中不起作用。

是因为我已经有元device ,也许有max-width:480px而不是?

我发现最好的方法是为较老的浏览器编写默认的CSS,就像旧版本的浏览器一样,包括ie 5.5,6,7和8.无法阅读@media。 当我使用@media时,我使用它:

 <style type="text/css"> /* default styles here for older browsers. I tend to go for a 600px - 960px width max but using percentages */ @media only screen and (min-width:960px){ /* styles for browsers larger than 960px; */ } @media only screen and (min-width:1440px){ /* styles for browsers larger than 1440px; */ } @media only screen and (min-width:2000px){ /* for sumo sized (mac) screens */ } @media only screen and (max-device-width:480px){ /* styles for mobile browsers smaller than 480px; (iPhone) */ } @media only screen and (device-width:768px){ /* default iPad screens */ } /* different techniques for iPad screening */ @media only screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:portrait) { /* For portrait layouts only */ } @media only screen and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:landscape) { /* For landscape layouts only */ } </style> 

但是你可以用@media做任何你喜欢的事情,这只是我为所有浏览器构build样式时最适合自己的一个例子。

iPad的CSS规格。

也! 如果您正在寻找可印刷性,您可以使用@media print{}

根本问题是使用max-device-width与普通的旧的max-width

使用“设备”关键字的目标是屏幕的物理尺寸,而不是浏览器窗口的宽度。

例如:

 @media only screen and (max-device-width: 480px) { /* STYLES HERE for DEVICES with physical max-screen width of 480px */ } 

 @media only screen and (max-width: 480px) { /* STYLES HERE for BROWSER WINDOWS with a max-width of 480px. This will work on desktops when the window is narrowed. */ } 

content属性的正确值应该包括initial-scale

 <meta name="viewport" content="width=device-width, initial-scale=1"> ^^^^^^^^^^^^^^^