我一直在做一些关于媒体查询的研究，但我仍然不太明白如何针对特定尺寸的设备。
我希望能够瞄准台式机、平板电脑和手机。我知道会有一些差异，但如果有一个通用的系统可以用来针对这些设备就好了。
我找到了一些例子:
# 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)
Or:
# 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?
当前回答
$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; }
}
}
你也可以为小于320px的场景添加一个，比如Galaxy fold
其他回答
如果你想瞄准一个设备，那么只需要写min-device-width。例如:
为iPhone
@media only screen and (min-device-width: 480px){}
为平板电脑
@media only screen and (min-device-width: 768px){}
这里有一些不错的文章:
如何使你的网站适合苹果iPad CSS3媒体查询
因为有许多不同的屏幕尺寸总是在变化，最有可能总是在变化，最好的方法是根据你的设计来设置断点和媒体查询。
要做到这一点，最简单的方法是抓取你完成的桌面设计，并在浏览器中打开它。慢慢缩小屏幕，使其更窄。观察设计什么时候开始“断裂”，或者看起来可怕和局促。此时需要一个带有媒体查询的断点。
通常为台式机、平板电脑和手机创建三组媒体查询。但是，如果你的设计在这三个方面都很好，为什么要麻烦地添加三个不同的不必要的媒体查询呢?根据需要来做!
我用下面一个来做我的工作。
/* 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 */
}
对我来说最好的解决方案，检测设备是否移动:
@media (pointer:none), (pointer:coarse) {
}
如果你想创建更具体的媒体查询，这里有一个IPhone的例子，从这个链接https://css-tricks.com/snippets/css/media-queries-for-standard-devices/复制，你可以在这个链接中找到更多设备的媒体查询)
/* ----------- iPhone 4 and 4S ----------- */ /* Portrait and Landscape */ @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 and 5SE ----------- */ /* Portrait and Landscape */ @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 and 8 ----------- */ /* Portrait and Landscape */ @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 */ @media only screen and (min-device-width: 414px) and (max-device-width: 736px) and (-webkit-min-device-pixel-ratio: 3) and (orientation: landscape) { } /* ----------- iPhone X ----------- */ /* Portrait and Landscape */ @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) and (-webkit-min-device-pixel-ratio: 3) and (orientation: landscape) { }
