W3.CSS Flex Items
The child elements of a flex container automatically becomes flex items.
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The flex container above has four green flex items inside a grey flex container.
Flex Item Properties
These properties can be used for flex items:
orderflex-growflex-shrinkflex-basisflexalign-self
The order Property
The order property specifies the order of the items inside a flex container.
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Example
<div class="flex-container">
<div style="order: 3">1</div>
<div style="order: 2">2</div>
<div style="order: 4">3</div>
<div style="order: 1">4</div>
</div>
The flex-grow Property
The flex-grow property specifies how much a flex item will grow relative
to the rest of the flex items. The default value is 0.
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Example
Make the third flex item grow eight times faster than the other flex items:
<div class="w3-flex">
<div style="flex-grow: 1">1</div>
<div style="flex-grow: 8">2</div>
<div style="flex-grow:
1">3</div>
</div>
The flex-shrink Property
The flex-shrink property specifies how much a flex item will shrink
relative to the rest of the flex items. The default value is 1.
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Example
Do not let the third flex item shrink as much as the other flex items:
<div class="w3-flex">
<div>1</div>
<div>2</div>
<div style="flex-shrink:
0">3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>
<div>10</div>
</div>
The flex-basis Property
The flex-basis property specifies the initial length of a flex item.
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Example
Set the initial length of the third flex item to 200 pixels:
<div class="w3-flex">
<div>1</div>
<div>2</div>
<div style="flex-basis: 200px">3</div>
<div>4</div>
</div>
The flex Property
The flex property is a shorthand property for the
flex-grow, flex-shrink, and flex-basis properties.
Example
Make the third flex item not growable (0), not shrinkable (0), and with an initial length of 200 pixels:
<div class="w3-flex">
<div>1</div>
<div>2</div>
<div style="flex:
0 0 200px">3</div>
<div>4</div>
</div>
The align-self Property
The align-self property specifies the
alignment for the selected item inside the flexible container.
The align-self property overrides the default alignment set by the
container's align-items property.
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In these examples we use a 200 pixels high container, to better demonstrate the
align-self property:
Example
Align the third flex item in the middle of the container:
<div class="w3-flex">
<div>1</div>
<div>2</div>
<div style="align-self:center">3</div>
<div>4</div>
</div>
Example
Align the second flex item at the top of the container, and the third flex item at the bottom of the container:
<div class="w3-flex">
<div>1</div>
<div>2</div>
<div style="align-self:flex-start">3</div>
<div>4</div>
</div>
Example
Align the second flex item at the top of the container, and the third flex item at the bottom of the container:
<div class="w3-flex">
<div>1</div>
<div>2</div>
<div style="align-self:flex-end">3</div>
<div>4</div>
</div>
General CSS Properties
| Property | Description |
|---|---|
| align-self | Specifies the alignment for a flex item (overrides the flex container's align-items property) |
| flex | A shorthand property for the flex-grow, flex-shrink, and the flex-basis properties |
| flex-basis | Specifies the initial length of a flex item |
| flex-grow | Specifies how much a flex item will grow relative to the rest of the flex items inside the container |
| flex-shrink | Specifies how much a flex item will shrink relative to the rest of the flex items inside the container |
| order | Specifies the order of the flex items inside the container |
