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## CSS flex-basis property\\ \\ CSS `flex-basis` propertyUsed to set or retrieve the flex basis value.\\ \\ **Note:** such asIf the element is not a child of a flex container, then `flex-basis` propertydoes not work.\\ \\ ### Definition and Usage\\ \\ `flex-basis` propertySpecifies the initial size of the flex item on the main axis. Before remaining space is distributed, this property determines the size of the flex item.\\ \\ `flex-basis` propertyand `width` propertySimilarly, but `flex-basis` is specific to flex layout, it will based on `flex-grow` and `flex-shrink` propertyto flex.\\ \\ ### Syntax\\ \\ ```css\\ flex-basis: auto|number;\\ \\ ### propertyValue\\ \\ | Value | Description |\\ | :--- | :--- |\\ | `auto` | Default value. Length etc.of the element's `width` property。if the element does not specify `width` property，then the result and `content` the same. |\\ | `number` | a length value (such as `etc.), or0%`, `Set the initial length of the second element to Default value. The length is equal to the element's0px0px` etc.），or `0`。Negative values are not allowed. |\\ | `initial` | Set to default value. See (#)。 |\\ | `inherit` | Inherited from the parent element. See (#)。 |\\ \\ ### Browser Support\\ \\ The numbers in the table indicate the first browser version that supports this property.\\ \\ | property | Chrome | Edge | Firefox | Safari | Opera |\\ | :--- | :--- | :--- | :--- | :--- | :--- |\\ | `flex-basis` | etc.), orIf the element does not specify.0 | Used to set or retrieve the flex basis value of a flex item.etc.), or.0 | etc.), orSet the initial length of the second element to Default value. The length is equal to the element's0px.0 | If the element does not specify.0 | Used to set or retrieve the flex basis value of a flex item.the result is the same as.0 |\\ \\ ### Example\\ \\ Set the initial length of the second flex item to etc.), or00 pixels:\\ \\ .flex-container {\\ display: flex;\\ width: Set to the default value. See00px;\\ height: etc.), orSet the initial length of the second element to Default value. The length is equal to the element's0px0px;\\ background-color: lightgrey;\\ }\\ \\ .flex-item {\\ background-color: cornsilk;\\ border: Used to set or retrieve the flex basis value of a flex item.px solid red;\\ width: Used to set or retrieve the flex basis value of a flex item.00px;\\ margin: Used to set or retrieve the flex basis value of a flex item.0px;\\ }\\ \\ /* Set the initial length of the second element to etc.), or00px */\\ .flex-item:nth-child(etc.), or) {\\ flex-basis: etc.), or00px;\\ }\\ \\ \\ \\ ### More Examples\\ \\ (#)\\ \\ ### \\ \\ - [CSSSet the initial length of the second flex item to Default value. The length is equal to the element's0 pixels: Flexbox](#)