最大高度 | @viewport.max-height
max-heightCSS描述符指定通过定义的文档的视口的最大高度@viewportat-rule。
考虑到最大高度约束，初始高度将尽可能接近初始视口高度。
Related at-rule | @viewport |
|---|---|
初始值 | auto |
Percentages | refer to the height of the initial viewport |
适用媒体 | visual, continuous |
计算值 | if specified as a length, the corresponding absolute length; if specified as a percentage, the specified value; otherwise, auto |
正规顺序 | the unique non-ambiguous order defined by the formal grammar |
语法
/* Keyword value */
max-height: auto;
/* <length> values */
max-height: 400px;
max-height: 50em;
max-height: 20cm;
/* <percentage> value */
max-height: 75%;值
auto使用的值是从其他CSS描述符的值中计算出来的。<length>非负的绝对或相对长度。<percentage>相对于初始视口高度的百分比值，垂直长度缩放系数为1.0。必须是非负的。
正式语法
<viewport-length>where
<viewport-length> = auto | <length-percentage>
where
<length-percentage> = <length> | <percentage>示例
@viewport {
max-height: 600px;
}规范
Specification | Status | Comment |
|---|---|---|
CSS Device AdaptationThe definition of '"max-height" descriptor' in that specification. | Working Draft | Initial definition |
浏览器兼容性
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
Basic support | 29 (behind a flag) | No support | 10 -ms | 11.10 Removed in 15 Reintroduced behind a flag in 16 | No support |
Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
Basic support | 4.4 | 29 | No support | 10-ms | 11.10 Removed in 15 Reintroduced behind a flag in 16 | No support |
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