min-block-size

The min-block-size CSS property defines the minimum horizontal or vertical size of an element's block, depending on its writing mode. It corresponds to either the min-width or the min-height property, depending on the value of writing-mode. If the writing mode is vertically oriented, the value of min-block-size relates to the minimum width of the element; otherwise, it relates to the minimum height of the element. A related property is min-inline-size, which defines the other dimension of the element.

Try it
Syntax
/* <length> values */
min-block-size: 100px;
min-block-size: 5em;

/* <percentage> values */
min-block-size: 10%;

/* Keyword values */
min-block-size: max-content;
min-block-size: min-content;
min-block-size: fit-content(20em);

/* Global values */
min-block-size: inherit;
min-block-size: initial;
min-block-size: revert;
min-block-size: revert-layer;
min-block-size: unset;
Values
The min-block-size property takes the same values as the min-width and min-height properties.Formal definition


Initial value
0


Applies to
same as width and height



Inherited
no


Percentages
block-size of containing block


Computed value
same as min-width and min-height



Animation type
a length, percentage or calc();

Formal syntax
min-block-size =   <'min-width'>  Examples
Setting minimum block size for vertical text

HTML <p class="exampleText">Example text</p>
 CSS .exampleText {
  writing-mode: vertical-rl;
  background-color: yellow;
  min-block-size: 200px;
}
 Result

Specifications

Specification
CSS Logical Properties and Values Level 1 # propdef-min-block-size

Browser compatibility




Desktop
Mobile



Chrome
Edge
Firefox
Internet Explorer
Opera
Safari
WebView Android
Chrome Android
Firefox for Android
Opera Android
Safari on IOS
Samsung Internet




min-block-size
57
79
41
No
44
12.1
57
57
41
43
12.2
7.0


fit-content
57
79
No
No
44
12.1
57
57
No
43
12.2
7.0


fit-content_function
No
No
91
No
No
No
No
No
No
No
No
No


max-content
57
79

66
41

No
44
12.1
57
57

66
41

43
12.2
7.0


min-content
57
79

66
41

No
44
12.1
57
57

66
41

43
12.2
7.0



See also
 The mapped physical properties: min-width and min-height
 writing-mode 

Found a problem with this page?

Edit on GitHub
Source on GitHub
Report a problem with this content on GitHub
Want to fix the problem yourself? See our Contribution guide.


Last modified: Apr 5, 2022, by MDN contributors


    
{'path': 'public/docs/css/min-block-size.html', 'source': 'DevDocs.IO'}