CSS Flex Items

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CSS Flex Items


Child Elements (Items)
The direct child elements of a flex container automatically becomes flexible (flex) items.

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The element above represents four blue flex items inside a grey flex container.

Example

<div class="flex-container">  <div>1</div> 
<div>2</div>  <div>3</div>  
<div>4</div></div>


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The flex item properties are:

order
flex-grow
flex-shrink
flex-basis
flex
align-self



The order Property
The order property specifies the order of
the flex items.

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The first flex item in the code does not have to appear as the first item in the layout.
The order value must be a number, default value is 0.

Example
The order property can change the order of the flex items:

<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>


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The flex-grow Property
The flex-grow property specifies how much a flex item will grow relative to the rest of the flex items.

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The value must be a number, default value is 0.

Example
Make the third flex item grow eight times faster than the other flex items:

<div class="flex-container">  <div style="flex-grow: 1">1</div> 
<div style="flex-grow: 1">2</div>  <div style="flex-grow:
8">3</div> </div>


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The flex-shrink Property
The flex-shrink property specifies how much a flex item will shrink relative to the rest of the flex items.

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The value must be a number, default value is 1.

Example
Do not let the third flex item shrink as much as the other flex items:

<div class="flex-container">  <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>


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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="flex-container">  <div>1</div>  <div>2</div>  <div style="flex-basis: 200px">3</div>
  <div>4</div></div>


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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="flex-container">  <div>1</div>  <div>2</div>  <div style="flex:
0 0 200px">3</div>
  <div>4</div></div>


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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="flex-container">  <div>1</div>  <div>2</div>  <div style="align-self:
center">3</div>
  <div>4</div></div>


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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="flex-container">  <div>1</div>  <div style="align-self:
flex-start">2</div>
  <div style="align-self:
flex-end">3</div>
  <div>4</div></div>


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The CSS Flexbox Items Properties
The following table lists all the CSS Flexbox Items 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 same container


flex-shrink
Specifies how much a flex item will shrink relative to the rest of the flex items inside the same container


order
Specifies the order of the flex items inside the same container














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Reference: https://www.w3schools.com/css/css3_flexbox_items.asp