CSS 媒体查询（最大高度）不起作用，但为什么？答案

【问题标题】：CSS Media query (max-height) isn't working but why?CSS 媒体查询（最大高度）不起作用，但为什么？
【发布时间】：2016-09-15 11:57:50
【问题描述】：

我有页面 - http://pgkweb.ru/temp/1/index.html 和它的样式 - http://pgkweb.ru/temp/1/include/style.css。对于移动设备，我需要扩大块之间的边距。所以我尝试了

@media (max-height: 800px)

它不起作用（背景不是金色的）。

如果我这样做了

 @media not screen and (max-height: 800px)

我的 PC 上的背景更改。有没有可能让它发挥作用？

【问题讨论】：

标签： css media-queries

【解决方案1】：

确保您有一个viewport 标签，例如<meta name="viewport" content="width=device-width,initial-scale=1.0">。

【讨论】：

嗯，这有点帮助，谢谢。但我仍然无法理解如何更改最小高度

【解决方案2】：

你的 html 页面有 <meta name="viewport" content="width=device-width, initial-scale=0.6"> 应该是<meta name="viewport" content="width=device-width, initial-scale=1.0">

将所有这些代码添加到现有 css 表的末尾

/*
  Based on:
  1. http://stephen.io/mediaqueries
  2. https://css-tricks.com/snippets/css/media-queries-for-standard-devices/
*/

/* iPhone 6 in portrait & landscape */
@media only screen 
and (min-device-width : 375px) 
and (max-device-width : 667px) {
  
}

/* iPhone 6 in landscape */
@media only screen 
and (min-device-width : 375px) 
and (max-device-width : 667px) 
and (orientation : landscape) {
  
}

/* iPhone 6 in portrait */
@media only screen 
and (min-device-width : 375px) 
and (max-device-width : 667px) 
and (orientation : portrait) {
  
}

/* iPhone 6 Plus in portrait & landscape */
@media only screen 
and (min-device-width : 414px) 
and (max-device-width : 736px) {
  
}

/* iPhone 6 Plus in landscape */
@media only screen 
and (min-device-width : 414px) 
and (max-device-width : 736px) 
and (orientation : landscape) {
  
}

/* iPhone 6 Plus in portrait */
@media only screen 
and (min-device-width : 414px) 
and (max-device-width : 736px) 
and (orientation : portrait) {
  
}

/* iPhone 5 & 5S in portrait & landscape */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 568px) {
  
}

/* iPhone 5 & 5S in landscape */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 568px) 
and (orientation : landscape) {
  
}

/* iPhone 5 & 5S in portrait */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 568px) 
and (orientation : portrait) {
  
}

/* 
  iPhone 2G, 3G, 4, 4S Media Queries
  It's noteworthy that these media queries are also the same for iPod Touch generations 1-4.
*/

/* iPhone 2G-4S in portrait & landscape */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 480px) {
  
}

/* iPhone 2G-4S in landscape */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 480px) 
and (orientation : landscape) {
  
}

/* iPhone 2G-4S in portrait */
@media only screen 
and (min-device-width : 320px) 
and (max-device-width : 480px) 
and (orientation : portrait) {
  
}

/* iPad in portrait & landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px)  {
  
}

/* iPad in landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : landscape) {
  
}

/* iPad in portrait */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : portrait) {
  
}

/* Galaxy S3 portrait and landscape */
@media screen 
  and (device-width: 320px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 2) {

}

/* Galaxy S3 portrait */
@media screen 
  and (device-width: 320px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 2) 
  and (orientation: portrait) {

}

/* Galaxy S3 landscape */
@media screen 
  and (device-width: 320px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 2) 
  and (orientation: landscape) {

}

/* Galaxy S4 portrait and landscape */
@media screen 
  and (device-width: 320px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) {

}

/* Galaxy S4 portrait */
@media screen 
  and (device-width: 320px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) 
  and (orientation: portrait) {

}

/* Galaxy S4 landscape */
@media screen 
  and (device-width: 320px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) 
  and (orientation: landscape) {

}

/* Galaxy S5 portrait and landscape */
@media screen 
  and (device-width: 360px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) {

}

/* Galaxy S5 portrait */
@media screen 
  and (device-width: 360px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) 
  and (orientation: portrait) {

}

/* Galaxy S5 landscape */
@media screen 
  and (device-width: 360px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) 
  and (orientation: landscape) {

}

/* HTC One portrait and landscape */
@media screen 
  and (device-width: 360px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) {

}

/* HTC One portrait */
@media screen 
  and (device-width: 360px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) 
  and (orientation: portrait) {

}

/* HTC One landscape */
@media screen 
  and (device-width: 360px) 
  and (device-height: 640px) 
  and (-webkit-device-pixel-ratio: 3) 
  and (orientation: landscape) {

}

/*
  iPad 3 & 4 Media Queries
  If you're looking to target only 3rd and 4th generation Retina iPads 
  (or tablets with similar resolution) to add @2x graphics,
  or other features for the tablet's Retina display, use the following media queries.
*/

/* Retina iPad in portrait & landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px)
and (-webkit-min-device-pixel-ratio: 2) {
  
}

/* Retina iPad in landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : landscape)
and (-webkit-min-device-pixel-ratio: 2) {
  
}

/* Retina iPad in portrait */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : portrait)
and (-webkit-min-device-pixel-ratio: 2) {
  
}

/*
  iPad 1 & 2 Media Queries
  If you're looking to supply different graphics or choose different typography 
  for the lower resolution iPad display, the media queries below will work 
  like a charm in your responsive design!
*/

/* iPad 1 & 2 in portrait & landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (-webkit-min-device-pixel-ratio: 1) {
  
}

/* iPad 1 & 2 in landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : landscape)
and (-webkit-min-device-pixel-ratio: 1) {
  
}

/* iPad 1 & 2 in portrait */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : portrait) 
and (-webkit-min-device-pixel-ratio: 1) {
  
}

/* iPad mini in portrait & landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px)
and (-webkit-min-device-pixel-ratio: 1) {
  
}

/* iPad mini in landscape */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : landscape)
and (-webkit-min-device-pixel-ratio: 1) {

}

/* iPad mini in portrait */
@media only screen 
and (min-device-width : 768px) 
and (max-device-width : 1024px) 
and (orientation : portrait)
and (-webkit-min-device-pixel-ratio: 1) {
  
}

/* Galaxy Tab 10.1 portrait and landscape */
@media
  (min-device-width: 800px) 
  and (max-device-width: 1280px) {

}

/* Galaxy Tab 10.1 portrait */
@media 
  (max-device-width: 800px) 
  and (orientation: portrait) { 

}

/* Galaxy Tab 10.1 landscape */
@media 
  (max-device-width: 1280px) 
  and (orientation: landscape) { 

}

/* Asus Nexus 7 portrait and landscape */
@media screen 
  and (device-width: 601px) 
  and (device-height: 906px) 
  and (-webkit-min-device-pixel-ratio: 1.331) 
  and (-webkit-max-device-pixel-ratio: 1.332) {

}

/* Asus Nexus 7 portrait */
@media screen 
  and (device-width: 601px) 
  and (device-height: 906px) 
  and (-webkit-min-device-pixel-ratio: 1.331) 
  and (-webkit-max-device-pixel-ratio: 1.332) 
  and (orientation: portrait) {

}

/* Asus Nexus 7 landscape */
@media screen 
  and (device-width: 601px) 
  and (device-height: 906px) 
  and (-webkit-min-device-pixel-ratio: 1.331) 
  and (-webkit-max-device-pixel-ratio: 1.332) 
  and (orientation: landscape) {

}

/* Kindle Fire HD 7" portrait and landscape */
@media only screen 
  and (min-device-width: 800px) 
  and (max-device-width: 1280px) 
  and (-webkit-min-device-pixel-ratio: 1.5) {

}

/* Kindle Fire HD 7" portrait */
@media only screen 
  and (min-device-width: 800px) 
  and (max-device-width: 1280px) 
  and (-webkit-min-device-pixel-ratio: 1.5) 
  and (orientation: portrait) {
    
}

/* Kindle Fire HD 7" landscape */
@media only screen 
  and (min-device-width: 800px) 
  and (max-device-width: 1280px) 
  and (-webkit-min-device-pixel-ratio: 1.5) 
  and (orientation: landscape) {

}

/* Kindle Fire HD 8.9" portrait and landscape */
@media only screen 
  and (min-device-width: 1200px) 
  and (max-device-width: 1600px) 
  and (-webkit-min-device-pixel-ratio: 1.5) {

}

/* Kindle Fire HD 8.9" portrait */
@media only screen 
  and (min-device-width: 1200px) 
  and (max-device-width: 1600px) 
  and (-webkit-min-device-pixel-ratio: 1.5) 
  and (orientation: portrait) {
    
}

/* Kindle Fire HD 8.9" landscape */
@media only screen 
  and (min-device-width: 1200px) 
  and (max-device-width: 1600px) 
  and (-webkit-min-device-pixel-ratio: 1.5) 
  and (orientation: landscape) {

}

/* Laptops non-retina screens */
@media screen 
  and (min-device-width: 1200px) 
  and (max-device-width: 1600px) 
  and (-webkit-min-device-pixel-ratio: 1) {
    
}

/* Laptops retina screens */
@media screen 
  and (min-device-width: 1200px) 
  and (max-device-width: 1600px) 
  and (-webkit-min-device-pixel-ratio: 2)
  and (min-resolution: 192dpi) {
    
}

/* Apple Watch */
@media
  (max-device-width: 42mm)
  and (min-device-width: 38mm) { 

}

/* Moto 360 Watch */
@media 
  (max-device-width: 218px)
  and (max-device-height: 281px) { 

}

【讨论】：

不幸的是它没有帮助 - 移动版本中的文本很大。工商管理硕士我的错是字体大小和边距百分比：font-size:200%;?
不行，没用，手机版内容非常非常大 - pgkweb.ru/temp/1/2/index.html

【解决方案3】：

终于用@media (max-width: 600px) 解决了，在我看来，max-height 确实有问题，或者我无法以正确的方式烹饪它。

【讨论】：

我也有同样的问题。在我的例子中，我追踪到受影响的项目被加载到宽度和高度设置为 100% 的 iFrame 中。如果我在 iFrame 设置 min-height 之外加载页面。如果在 iFrame 中加载，则只有 min-width 有效。
@bgx 感谢您的评论 - 一个带有硬编码 height: Xpx; 的 iframe 原来是我的问题。

【解决方案4】：

我有一个非常相似的问题。

对我来说，我定位的 div 是 position: fixed; div 与 height: 100vh; 和 width: 100vw; 的子级。将 vh 和 vw 更改为 % 解决了我的问题。

iOS 11 似乎存在与上述相关的错误，因为 Chrome 开发工具在渲染 iPhone 6 时响应正确，但手机本身渲染不正确。

例如

<div class="fixed-parent">
    <div class="absolute-child" />
</div>

.fixed-parent {
    // height: 100vh; <--- buggy /w max-height media query on iOS 11
    // width: 100vw;  <--- buggy /w max-height media query on iOS 11
    height: 100%;
    width: 100%;

    position: fixed;
    top: 0; left: 0;
}

.absolute-child {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);

    @media screen and (max-height: 800px) {
        top: 45%;
    }
}

【讨论】：

【解决方案5】：

为了解决这个问题，我只需要使用“不缓存刷新”（ctrl + F5），然后就可以了。

@media screen 的 CSS 是这样的

@media screen and (max-height: 800px) {

}

只是分享一下我刚刚解决了我的问题。

希望对您有所帮助！

【讨论】：