From 33058f2b292b3a581333bdfb21b8f671898c5060 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:40:17 -0500 Subject: initial commit --- files/zh-cn/web/css/max-height/index.html | 117 ++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 files/zh-cn/web/css/max-height/index.html (limited to 'files/zh-cn/web/css/max-height') diff --git a/files/zh-cn/web/css/max-height/index.html b/files/zh-cn/web/css/max-height/index.html new file mode 100644 index 0000000000..919ed11b3b --- /dev/null +++ b/files/zh-cn/web/css/max-height/index.html @@ -0,0 +1,117 @@ +--- +title: max-height +slug: Web/CSS/max-height +translation_of: Web/CSS/max-height +--- +
{{CSSRef}}
+ +

CSS属性 max-height 设置元素的最大高度。它防止{{cssxref("height")}}属性的使用值（used value） 大于 max-height 的指定值。

+ +
{{EmbedInteractiveExample("pages/css/max-height.html")}}
+ + + +

max-height 会覆盖{{cssxref("height")}}, 而{{cssxref("min-height")}} 会覆盖 max-height.

+ +

Syntax

+ +
/* <length> value */
+max-height: 3.5em;
+
+/* <percentage> value */
+max-height: 75%;
+
+/* Keyword values */
+max-height: none;
+max-height: max-content;
+max-height: min-content;
+max-height: fit-content(20em);
+
+/* Global values */
+max-height: inherit;
+max-height: initial;
+max-height: unset;
+
+ +

Values

+ +
+
{{cssxref("<length>")}}
+
Defines the max-height as an absolute value.
+
{{cssxref("<percentage>")}}
+
Defines the max-height as a percentage of the containing block's height.
+
auto
+
The browser will calculate and select a max-height for the specified element.
+
none
+
No limit on the size of the box.
+
max-content
+
The intrinsic preferred max-height.
+
min-content
+
The intrinsic minimum max-height.
+
fit-content({{cssxref("<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 syntax

+ +
{{csssyntax}}
+ +

Examples

+ +
table { max-height: 75%; }
+
+form { max-height: none; }
+
+ +

Accessibility concerns

+ +

Ensure that elements set with a max-height are not truncated and/or do not obscure other content when the page is zoomed to increase text size.

+ + + +

Specifications

+ + + + + + + + + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('CSS4 Sizing', '#width-height-keywords', 'max-height')}}{{Spec2('CSS4 Sizing')}}
{{SpecName('CSS3 Sizing', '#width-height-keywords', 'max-height')}}{{Spec2('CSS3 Sizing')}}Adds the max-content, min-content, fit-content keywords.
{{SpecName('CSS2.1', 'visudet.html#min-max-heights', 'max-height')}}{{ Spec2('CSS2.1') }}Initial definition.
+ +

{{cssinfo}}

+ +

Browser compatibility

+ + + +

{{Compat("css.properties.max-height")}}

+ +

See also

+ + -- cgit v1.2.3-54-g00ecf