最小宽度 | @viewport.min-width (Device Adaptation) - CSS 中文开发手册 - Break易站
最小宽度 | @viewport.min-width (Device Adaptation) - CSS 中文开发手册
min-widthCSS描述符指定通过@viewport所定义的文档的视口的最小宽度。
默认情况下,min-width考虑到最小宽度约束,将其设置为尽可能接近初始视口。
Related at-rule | @viewport |
---|---|
初始值 | auto |
百分比值 | refer to the width of the initial viewport |
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 |
规范顺序 | the unique non-ambiguous order defined by the formal grammar |
语法
/* Keyword value */ min-width: auto; /* <length> values */ min-width: 320px; min-width: 40em; min-width: 5cm; /* <percentage> value */ min-width: 25%;
值
auto使用的值是根据其他CSS描述符的值计算的。
<length>非负绝对或相对长度。
<percentage>相对于缩放因子1.0的初始视口的宽度或高度的百分比值,分别用于水平和垂直长度。肯定是非负的。
形式语法
<viewport-length>where <viewport-length> = auto | <length-percentage> where <length-percentage> = <length> | <percentage>
规范
Specification | Status | Comment |
---|---|---|
CSS Device AdaptationThe definition of '"min-width" 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 |