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@Media min-width&max-width

我有@media设置:

_ 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 */
}

使用此设置它可以在iPhone上运行,但它在浏览器中不起作用。

是因为我在meta中已经有device,而且可能有max-width:480px吗?

195
rallybilen

我发现最好的方法是为旧浏览器编写默认的CSS,因为旧的浏览器包括5.5,6,7和8.不能读取@media。当我使用@media时,我会像这样使用它:

<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建样式时最适合我的一个例子。

iPad CSS规范。

也!如果您正在寻找可印刷性,可以使用@media print{}

296
sourRaspberri

根本问题是使用max-device-width vs plain old max-width

使用“device”关键字定位屏幕的物理尺寸,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 */
}

Versus

@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.  */
}
33
jpostdesign

content属性的正确值应包括initial-scale

<meta name="viewport" content="width=device-width, initial-scale=1">
                                                   ^^^^^^^^^^^^^^^
8
Ksenia Titova

使用很简单

@media only screen and (max-width: 600px) and (min-width: 400px)  {   }
0
Rohit Kaushik