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Summary
The min-width CSS descriptor specifies the minimum width of the viewport of a document defined via @viewport.
By default, min-width is set as close as possible to the initial viewport considering the minimum width constraint.
| Related at-rule | @viewport |
|---|---|
| Initial value | auto |
| Percentages | refer to the width of the initial viewport |
| Media | visual, continuous |
| Computed value | if specified as a length, the corresponding absolute length; if specified as a percentage, the specified value; otherwise, auto |
| Canonical order | the unique non-ambiguous order defined by the formal grammar |
Syntax
/* Keyword value */ min-width: auto; /* <length> values */ min-width: 320px; min-width: 40em; min-width: 5cm; /* <percentage> value */ min-width: 25%;
Values
auto- The used value is calculated from the other CSS descriptors' values.
<length>- A non-negative absolute or relative length.
<percentage>- A percentage value relative to the width or height of the initial viewport at zoom factor 1.0, for horizontal and vertical lengths respectively. Must be non-negative.
Formal syntax
<viewport-length>where
<viewport-length> = auto | <length-percentage>where
<length-percentage> = <length> | <percentage>
Specifications
| Specification | Status | Comment |
|---|---|---|
| CSS Device Adaptation The definition of '"min-width" descriptor' in that specification. |
Working Draft | Initial definition |
Browser compatibility
| 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 |