我一直在对媒体查询进行一些研究,但我仍然不太了解如何定位特定尺寸的设备。
我希望能够针对台式机、平板电脑和移动设备。我知道会有一些差异,但如果有一个通用系统可用于针对这些设备,那就太好了。
我发现的一些例子:
# Mobile
only screen and (min-width: 480px)
# Tablet
only screen and (min-width: 768px)
# Desktop
only screen and (min-width: 992px)
# Huge
only screen and (min-width: 1280px)
或者:
# Phone
only screen and (max-width:320px)
# Tablet
only screen and (min-width:321px) and (max-width:768px)
# Desktop
only screen and (min-width:769px)
每个设备的断点应该是什么?
IMO 这些是最好的断点:
@media (min-width:320px) { /* smartphones, portrait iPhone, portrait 480x320 phones (Android) */ }
@media (min-width:480px) { /* smartphones, Android phones, landscape iPhone */ }
@media (min-width:600px) { /* portrait tablets, portrait iPad, e-readers (Nook/Kindle), landscape 800x480 phones (Android) */ }
@media (min-width:801px) { /* tablet, landscape iPad, lo-res laptops ands desktops */ }
@media (min-width:1025px) { /* big landscape tablets, laptops, and desktops */ }
@media (min-width:1281px) { /* hi-res laptops and desktops */ }
编辑:经过改进以更好地使用 960 个网格:
@media (min-width:320px) { /* smartphones, iPhone, portrait 480x320 phones */ }
@media (min-width:481px) { /* portrait e-readers (Nook/Kindle), smaller tablets @ 600 or @ 640 wide. */ }
@media (min-width:641px) { /* portrait tablets, portrait iPad, landscape e-readers, landscape 800x480 or 854x480 phones */ }
@media (min-width:961px) { /* tablet, landscape iPad, lo-res laptops ands desktops */ }
@media (min-width:1025px) { /* big landscape tablets, laptops, and desktops */ }
@media (min-width:1281px) { /* hi-res laptops and desktops */ }
在实践中,许多设计人员将像素转换为 em
,主要是因为 em
可以提供更好的缩放。在标准缩放 1em === 16px
下,将像素乘以 1em/16px
得到 em
。例如,320px === 20em
。
作为对评论的回应,min-width
是“移动优先”设计中的标准,您首先针对最小的屏幕进行设计,然后添加不断增加的媒体查询,然后在越来越大的屏幕上进行操作。
无论您更喜欢 min-
、max-
还是它们的组合,请注意规则的顺序,请记住,如果多个规则匹配同一个元素,后面的规则将覆盖前面的规则。
不要针对特定的设备或尺寸!
general wisdom 不是针对特定设备或尺寸,而是重新定义“断点”一词:
使用百分比或 ems,而不是像素,为移动优先开发网站,
然后在更大的视口中尝试它并注意它开始失败的地方,
重新设计布局并添加 CSS 媒体查询来处理损坏的部分,
重复该过程,直到到达下一个断点。
您可以使用 responsivepx.com 来查找“自然”断点,如 'breakpoints are dead' by Marc Drummond。
使用自然断点
然后,“断点”成为您的移动设计开始“中断”的实际点,即不再可用或视觉上不悦目。一旦你有一个工作良好的移动网站,没有媒体查询,你就可以不再关心特定的大小,只需添加媒体查询来处理连续更大的视口。
如果您不尝试将设计固定到确切的屏幕尺寸,则此方法通过消除针对特定设备的需要而起作用。在每个断点处设计本身的完整性确保它可以承受任何大小。换句话说,如果菜单/内容部分/任何内容在某个尺寸下不再可用,请为该尺寸设计一个断点,而不是为特定的设备尺寸设计一个断点。
请参阅 Lyza Gardner 在 behavioral breakpoints 上的帖子,以及 Zeldman 关于 Ethan Marcotte 和 how responsive web design evolved 的最初想法的帖子。
使用语义标记
此外,具有 nav
、header
、main
、section
、footer
等的 DOM 结构更简单、更语义化(避免像 div class="header"
那样带有嵌套内部 { 10} 个标签)更容易设计响应性,尤其是通过使用 CSS Grid Layout(Sarah Drasner 的 grid generator 是一个很好的工具)和 flexbox 来根据您的 RWD 设计计划安排和重新排序来避免浮动.
如果您想定位设备,只需编写 min-device-width
。例如:
适用于 iPhone
@media only screen and (min-device-width: 480px){}
平板电脑
@media only screen and (min-device-width: 768px){}
这里有一些不错的文章:
如何让您的网站适合 Apple iPad
CSS3 媒体查询
@media only screen and (min-device-width: 1024){}
或类似的内容来覆盖这些更改。或者,如果您从桌面设计开始并且只想对小于 1024 的内容进行更改,则可以执行 @media only screen and (MAX-device-width: 1024){}
。
我已经使用这个网站找到了分辨率并根据实际数字开发了 CSS。我的数字与上面的答案有很大不同,除了我的 CSS 实际上命中了所需的设备。此外,在您的媒体查询之后立即使用这段调试代码,例如:@media only screen and (min-width: 769px) and (max-width: 1281px) { /* 用于 10 英寸平板电脑屏幕 */ body::before {内容:“平板电脑到某些桌面媒体查询 (769 > 1281) 已触发”;字体粗细:粗体;显示:块;文本对齐:居中;背景:rgba(255, 255, 0, 0.9); /* 半透明黄色 */ position: absolute;顶部:0;左:0;右:0; z指数:99;在每个单独的媒体查询中添加这个调试项,您将看到应用了什么查询。
Twitter Bootstrap 推荐的最佳断点
/* Custom, iPhone Retina */
@media only screen and (min-width : 320px) {
}
/* Extra Small Devices, Phones */
@media only screen and (min-width : 480px) {
}
/* Small Devices, Tablets */
@media only screen and (min-width : 768px) {
}
/* Medium Devices, Desktops */
@media only screen and (min-width : 992px) {
}
/* Large Devices, Wide Screens */
@media only screen and (min-width : 1200px) {
}
来源:https://scotch.io/tutorials/default-sizes-for-twitter-bootstraps-media-queries
常见设备断点的媒体查询
/* Smartphones (portrait and landscape) ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) {
/* Styles */
}
/* Smartphones (landscape) ----------- */
@media only screen and (min-width : 321px) {
/* Styles */
}
/* Smartphones (portrait) ----------- */
@media only screen and (max-width : 320px) {
/* Styles */
}
/* iPads (portrait and landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) {
/* Styles */
}
/* iPads (landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) {
/* Styles */
}
/* iPads (portrait) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) {
/* Styles */
}
/**********
iPad 3
**********/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
/* Desktops and laptops ----------- */
@media only screen and (min-width : 1224px) {
/* Styles */
}
/* Large screens ----------- */
@media only screen and (min-width : 1824px) {
/* Styles */
}
/* iPhone 4 ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
/* iPhone 5 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* iPhone 6 ----------- */
@media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* iPhone 6+ ----------- */
@media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* Samsung Galaxy S3 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* Samsung Galaxy S4 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
/* Samsung Galaxy S5 ----------- */
@media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
@media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
超小型设备(手机,最大 480 像素) 小型设备(平板电脑,768 像素及以上) 中型设备(大型横向平板电脑、笔记本电脑和台式机,992 像素及以上) 大型设备(大型台式机,1200 像素及以上)纵向电子阅读器( Nook/Kindle),较小的平板电脑 - 最小宽度:481 像素纵向平板电脑,纵向 iPad,横向电子阅读器 - 最小宽度:641 像素平板电脑,横向 iPad,低分辨率笔记本电脑 - 最小宽度:961 像素 HTC 一个设备宽度: 360px 设备高度:640px -webkit-device-pixel-ratio:3 三星 Galaxy S2 设备宽度:320px 设备高度:534px -webkit-device-pixel-ratio:1.5 (min--moz-device-pixel-ratio : 1.5), (-o-min-device-pixel-ratio: 3/2), (min-device-pixel-ratio: 1.5 Samsung Galaxy S3 device-width: 320px device-height: 640px -webkit-device-pixel -ratio: 2 (min--moz-device-pixel-ratio: 2), - 旧版 Firefox 浏览器(Firefox 16 之前) - Samsung Galaxy S4 设备宽度:320px 设备高度:640px -webkit-device-pixel-比率:3 LG Nexus 4 设备宽度:384px 设备高度:592px -webkit-device-pixel -ratio:2 Asus Nexus 7 设备宽度:601px 设备高度:906px -webkit-min-device-pixel-ratio:1.331)和(-webkit-max-device-pixel-ratio:1.332)iPad 1 和 2, iPad Mini device-width: 768px device-height: 1024px -webkit-device-pixel-ratio: 1 iPad 3 and 4 device-width: 768px device-height: 1024px -webkit-device-pixel-ratio: 2) iPhone 3G 设备-width:320px 设备高度:480px -webkit-device-pixel-ratio:1)iPhone 4 设备宽度:320px 设备高度:480px -webkit-device-pixel-ratio:2)iPhone 5 设备宽度:320px设备高度:568px -webkit-device-pixel-ratio:2)
现在最常见的是看到视网膜屏幕设备,换句话说:具有高分辨率和非常高的像素密度(但通常小于 6 英寸物理尺寸)的设备。这就是为什么您需要在 CSS 上显示专门的媒体查询的原因。这是我能找到的最完整的例子:
@media only screen and (min-width: 320px) {
/* Small screen, non-retina */
}
@media
only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 320px),
only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 320px),
only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 320px),
only screen and ( min-device-pixel-ratio: 2) and (min-width: 320px),
only screen and ( min-resolution: 192dpi) and (min-width: 320px),
only screen and ( min-resolution: 2dppx) and (min-width: 320px) {
/* Small screen, retina, stuff to override above media query */
}
@media only screen and (min-width: 700px) {
/* Medium screen, non-retina */
}
@media
only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 700px),
only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 700px),
only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 700px),
only screen and ( min-device-pixel-ratio: 2) and (min-width: 700px),
only screen and ( min-resolution: 192dpi) and (min-width: 700px),
only screen and ( min-resolution: 2dppx) and (min-width: 700px) {
/* Medium screen, retina, stuff to override above media query */
}
@media only screen and (min-width: 1300px) {
/* Large screen, non-retina */
}
@media
only screen and (-webkit-min-device-pixel-ratio: 2) and (min-width: 1300px),
only screen and ( min--moz-device-pixel-ratio: 2) and (min-width: 1300px),
only screen and ( -o-min-device-pixel-ratio: 2/1) and (min-width: 1300px),
only screen and ( min-device-pixel-ratio: 2) and (min-width: 1300px),
only screen and ( min-resolution: 192dpi) and (min-width: 1300px),
only screen and ( min-resolution: 2dppx) and (min-width: 1300px) {
/* Large screen, retina, stuff to override above media query */
}
这仅适用于那些尚未对其网站进行“移动优先”设计并正在寻找快速临时解决方案的人。
手机用
@media (max-width:480px){}
平板电脑
@media (max-width:960px){}
适用于笔记本电脑/台式机
@media (min-width:1025px){}
适用于高分辨率笔记本电脑
@media (max-width:1280px){}
这不是像素数的问题,而是屏幕上字符的实际大小(以毫米或英寸为单位)的问题,这取决于像素密度。因此“最小宽度:”和“最大宽度:”是无用的。此问题的完整说明如下:what exactly is device pixel ratio?
“@media”查询会考虑像素数和设备像素比,从而产生“虚拟分辨率”,这是您在设计页面时必须实际考虑的:如果您的字体是 10px 固定宽度并且“虚拟水平分辨率”为 300 像素,需要 30 个字符来填充一行。
由于有许多不同的屏幕尺寸总是在变化,而且很可能总是会变化,所以最好的方法是让你的断点和媒体查询基于你的设计。
最简单的方法是获取完成的桌面设计并在 Web 浏览器中打开它。慢慢缩小屏幕使其变窄。观察设计何时开始“中断”,或者看起来很糟糕和局促。此时需要一个带有媒体查询的断点。
为台式机、平板电脑和手机创建三组媒体查询是很常见的。但是,如果您的设计在这三个方面看起来都不错,为什么还要为添加三个不必要的不同媒体查询的复杂性而烦恼。根据需要进行操作!
一项额外功能是您还可以在 <link>
标记的 media 属性中使用媒体查询。
<link href="style.css" rel="stylesheet">
<link href="justForFrint.css" rel="stylesheet" media="print">
<link href="deviceSizeDepending.css" rel="stylesheet" media="(min-width: 40em)">
这样,浏览器将下载所有 CSS 资源,而不管媒体属性如何。不同之处在于,如果 media 属性的 media-query 被评估为 false,则该 .css 文件及其内容将不会被渲染阻塞。
因此,建议在 <link>
标记中使用 media 属性,因为它可以保证更好的用户体验。
您可以在此处阅读有关此问题的 Google 文章https://developers.google.com/web/fundamentals/performance/critical-rendering-path/render-blocking-css
一些工具可以帮助您根据您的媒体查询自动分离不同文件中的 css 代码
网页包 https://www.npmjs.com/package/media-query-plugin https://www.npmjs.com/package/media-query-splitting-plugin
PostCSS https://www.npmjs.com/package/postcss-extract-media-query
我正在使用以下一个来完成我的工作。
/* Smartphones (portrait and landscape) ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) {
/* Styles */
}
/* Smartphones (landscape) ----------- */
@media only screen and (min-width : 321px) {
/* Styles */
}
/* Smartphones (portrait) ----------- */
@media only screen and (max-width : 320px) {
/* Styles */
}
/* iPads (portrait and landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) {
/* Styles */
}
/* iPads (landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) {
/* Styles */
}
/* iPads (portrait) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) {
/* Styles */
}
/**********
iPad 3
**********/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
/* Desktops and laptops ----------- */
@media only screen and (min-width : 1224px) {
/* Styles */
}
/* Large screens ----------- */
@media only screen and (min-width : 1824px) {
/* Styles */
}
/* iPhone 4 ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
/* iPhone 5 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* iPhone 6, 7, 8 ----------- */
@media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* iPhone 6+, 7+, 8+ ----------- */
@media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* iPhone X ----------- */
@media only screen and (min-device-width: 375px) and (max-device-height: 812px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
@media only screen and (min-device-width: 375px) and (max-device-height: 812px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
/* iPhone XS Max, XR ----------- */
@media only screen and (min-device-width: 414px) and (max-device-height: 896px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
@media only screen and (min-device-width: 414px) and (max-device-height: 896px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
/* Samsung Galaxy S3 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}
/* Samsung Galaxy S4 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
/* Samsung Galaxy S5 ----------- */
@media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
@media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}
超小型设备 ~ 手机 (< 768px)
小型设备 ~ 平板电脑 (>= 768px)
中型设备 ~ 台式机 (>= 992px)
大型设备 ~ 台式机 (>= 1200px)
如果您想创建更具体的媒体查询,这里有一个 iPhone 的示例,它是从这个链接 https://css-tricks.com/snippets/css/media-queries-for-standard-devices/ 复制的,您可以在这个链接上找到更多设备的媒体查询)
/* ----------- iPhone 4 和 4S ----------- */ /* 纵向和横向 */ @media only screen and (min-device-width: 320px ) and (max-device-width: 480px) and (-webkit-min-device-pixel-ratio: 2) { } /* Portrait */ @media only screen and (min-device-width: 320px) and (max -device-width: 480px) and (-webkit-min-device-pixel-ratio: 2) and (orientation: portrait) { } /* Landscape */ @media only screen and (min-device-width: 320px) and (max-device-width: 480px) and (-webkit-min-device-pixel-ratio: 2) and (orientation: landscape) { } /* ----------- iPhone 5, 5S, 5C 和 5SE ----------- */ /* 纵向和横向 */ @media only screen and (min-device-width: 320px) and (max-device-width: 568px) and (- webkit-min-device-pixel-ratio: 2) { } /* Portrait */ @media only screen and (min-device-width: 320px) and (max-device-width: 568px) and (-webkit-min- device-pixel-ratio: 2) and (orientation: portrait) { } /* Landscape */ @media only screen and (min-device-width: 320px) and (max-device-width: 568px) and (-webkit-min-device-pixel-ratio: 2) and (orientation: Landscape) { } /* ----------- iPhone 6、6S、7和8 ------ ----- */ /* 纵向和横向 */ @media only screen and (min-device-width: 375px) and (max-device-width: 667px) and (-webkit-min-device-pixel-ratio : 2) { } /* Portrait */ @media only screen and (min-device-width: 375px) and (max-device-width: 667px) and (-webkit-min-device-pixel-ratio: 2) and (orientation: portrait) { } /* Landscape */ @media only screen and (min-device-width: 375px) and (max-device-width: 667px) and (-webkit-min-device-pixel-ratio: 2 ) and (orientation: Landscape) { } /* ----------- iPhone 6+, 7+ and 8+ ----------- */ /* Portrait and Landscape * / @media only screen and (min-device-width: 414px) and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 3) { } /* Portrait */ @media only screen and (min-device-width: 414px) and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 3) and (orientation: portrait) { } /* Landscape */ @医学ia only screen and (min-device-width: 414px) and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 3) and (orientation: Landscape) { } /* -- --------- iPhone X ----------- */ /* 纵向和横向 */ @media only screen and (min-device-width: 375px) and (max-device -width: 812px) and (-webkit-min-device-pixel-ratio: 3) { } /* Portrait */ @media only screen and (min-device-width: 375px) and (max-device-width: 812px ) and (-webkit-min-device-pixel-ratio: 3) and (orientation: portrait) { } /* Landscape */ @media only screen and (min-device-width: 375px) and (max-device-width :812px)和(-webkit-min-device-pixel-ratio:3)和(方向:横向){}
桌面上的行为不会改变。但在平板电脑和手机上,我扩展导航栏以覆盖大徽标图像。注意:根据您的徽标高度使用边距(顶部和底部)。
就我而言,60px 的顶部和底部效果完美!
@media (max-width:768px) {
.navbar-toggle {
margin: 60px 0;
}
}
检查导航栏 here。
对我来说最好的解决方案,检测设备是否是移动的:
@media (pointer:none), (pointer:coarse) {
}
pointer
...用户是否有指针设备(例如鼠标)"
$xs : "extra-small";
$s : "small";
$m : "medium";
$l : "large";
$xl : "extra-large";
@mixin respond($breakpoint) {
@if($breakpoint == $xs) {
@media only screen and (min-width: 320px) and (max-width: 479px) { @content; }
}
@if($breakpoint == $s) {
@media only screen and (min-width: 480px) and (max-width: 767px) { @content; }
}
@if($breakpoint == $m) {
@media only screen and (min-width: 768px) and (max-width: 991px) { @content; }
}
@if($breakpoint == $l) {
@media only screen and (min-width: 992px) and (max-width: 1199px) { @content; }
}
@if($breakpoint == $xl) {
@media only screen and (min-width: 1200px) { @content; }
}
}
您还可以为小于 320 像素的屏幕添加一个,例如 Galaxy fold
漂亮又简单
/* Mobile Devices */
@media (max-width: 480px) {
foo > bar {
}
}
/* Low resolution Tablets and iPads */
@media (min-width: 481px) and (max-width: 767px) {
foo > bar {
}
}
/* Tablets iPads (Portrait) */
@media (min-width: 768px) and (max-width: 1024px){
foo > bar {
}
}
/* Laptops and Desktops */
@media (min-width: 1025px) and (max-width: 1280px){
foo > bar {
}
}
/* Big boi Monitors */
@media (min-width: 1281px) {
foo > bar {
}
}
这不仅仅是关于分辨率,您还需要找到设备的 DPR:
whatismyscreenresolution "设备像素比 (DPR) 是设备制造商给出的数字,用于 HiDPI(每英寸高点数)或 Retina( Apple 的商标)显示”
媒体查询示例:(最小分辨率:3.0dppx)
@media (max-width: 767px) {
.container{width:100%} *{color:green;}-Mobile
}
@media (min-width: 768px) {
.container{width:100%} *{color:pink } -Desktop
}
@media (min-width: 768px) and (orientation:portrait) {
.container{width:100%} *{color:yellow } -Mobile
}
@media (min-width: 1024px) {
.container{width:100%} *{color:pink } -Desktop
}
@media (min-width: 1200px) {
.container{width:1180px} *{color:pink } -Desktop
}
min-width: 320px
css 覆盖min-width: 801px
?