pointer
CSS
media feature
tests whether the user has a pointing device (such as a mouse), and if so, how accurate the
primary
pointing device is.
注意：
If you want to test the accuracy of
any
pointing device, use
any-pointer
代替。
pointer
feature is specified as a keyword value chosen from the list below.
none
The primary input mechanism does not include a pointing device.
coarse
The primary input mechanism includes a pointing device of limited accuracy.
fine
The primary input mechanism includes an accurate pointing device.
This example creates a small checkbox for users with fine primary pointers and a large checkbox for users with coarse primary pointers.
<input id="test" type="checkbox" /> <label for="test">Look at me!</label>
input[type="checkbox"] {
-moz-appearance: none;
-webkit-appearance: none;
appearance: none;
border: solid;
margin: 0;
}
input[type="checkbox"]:checked {
background: gray;
}
@media (pointer: fine) {
input[type="checkbox"] {
width: 15px;
height: 15px;
border-width: 1px;
border-color: blue;
}
}
@media (pointer: coarse) {
input[type="checkbox"] {
width: 30px;
height: 30px;
border-width: 2px;
border-color: red;
}
}
| 规范 | 状态 | 注释 |
|---|---|---|
|
Media Queries Level 4
The definition of 'pointer' in that specification. |
候选推荐 | 初始定义。 |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
pointer
media feature
|
Chrome 完整支持 41 | Edge 完整支持 12 | Firefox 完整支持 64 | IE 不支持 No | Opera 完整支持 28 | Safari 完整支持 9 | WebView Android 完整支持 41 | Chrome Android 完整支持 50 | Firefox Android 完整支持 64 | Opera Android 完整支持 28 | Safari iOS 完整支持 9 | Samsung Internet Android 完整支持 5.0 |
完整支持
不支持