min-height

CSS 属性 min-height 能够设置元素的最小高度。这样能够防止 height 属性的应用值小于 min-height 的值。

当 min-height 大于 max-height 或 height 时，元素的高度会设置为 min-height 的值。

语法

/* <长度> 数值 */
min-height: 3.5em;

/* <百分比> 数值 */
min-height: 10%;

/* 关键词 */
min-height: max-content;
min-height: min-content;
min-height: fit-content(20em);

/* 全局数值 */
min-height: inherit;
min-height: initial;
min-height: unset;

Values

<length>
定义 min-height 为一个绝对数值。
<percentage>
定义 min-height 为一个相对于父容器高度的百分数。
auto
浏览器将通过计算为指定元素选择一个 min-height 值。
none
不限制盒容器的尺寸。
max-content
The intrinsic preferred min-height.
min-content
The intrinsic minimum min-height.
fit-content(<length-percentage>)
Uses the fit-content formula with the available space replaced by the specified argument, i.e. min(max-content, max(min-content, argument)).

Formal definition

初始值auto
适用元素all elements but non-replaced inline elements, table columns, and column groups
是否是继承属性否
PercentagesThe percentage is calculated with respect to the height of the generated box's containing block. If the height of the containing block is not specified explicitly (i.e., it depends on content height), and this element is not absolutely positioned, the percentage value is treated as 0.
计算值the percentage as specified or the absolute length
Animation typea length, percentage or calc();

Formal syntax

auto | <length> | <percentage> | min-content | max-content | fit-content | fit-content(<length-percentage>)
where 
<length-percentage> = <length> | <percentage>

示例

Setting min-height

table { min-height: 75%; }

form { min-height: 0; }

规范

Specification Status Comment
CSS Box Sizing Module Level 4
min-height		 Editor's Draft
CSS Box Sizing Module Level 3
min-height		 Working Draft Adds the max-content, min-content, fit-content keywords.
CSS Level 2 (Revision 1)
min-height		 Recommendation Initial definition.

浏览器兼容性

BCD tables only load in the browser

相关链接