flutter-view
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Special pug tags
CSS style properties
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CSS style properties
A list of all the supported CSS style like shortcuts you can use as properties in your pug tags. These will then transform themselves into the appropriate Dart code.

alignment

Describes where the content of a child should be positioned. Eg: text inside of a container.
Maps to Flutter Alignment values in camelcase.
Valid values:
    bottom-center: The center point along the bottom edge
    bottom-left: The bottom left corner
    bottom-right: The bottom right corner
    center: The center point, both horizontally and vertically
    center-left: The center point along the left edge
    center-right: The center point along the right edge
    top-center: The center point along the top edge
    top-left: The top left corner
    top-right: The top right corner
Example:
Pug
Dart
1
container(width=500 height=400)
2
.greeting(alignment='center-right')
3
| Hello, I am positioned at the right!
4
​
Copied!
1
Container(
2
child:
3
Container(
4
child: Text(
5
'Hello, I am positioned at the right!',
6
),
7
alignment: Alignment.centerRight,
8
),
9
width: 500,
10
height: 400,
11
)
Copied!
​

fit

Describes how a box should be inscribed into another box. Used for the FittedBox Flutter container. Use the background-size style property instead if you want to apply a sizing to a background-image.
Maps to Flutter BoxFit values in camelcase.
Valid values:
    contain: As large as possible while still containing the source entirely within the target box
    cover: As small as possible while still covering the entire target box.
    fill: Fill the target box by distorting the source's aspect ratio.
    fill-height: Make sure the full height of the source is shown, regardless of whether this means the source overflows the target box horizontally.
    fill-width: Make sure the full width of the source is shown, regardless of whether this means the source overflows the target box vertically.
    none: Align the source within the target box (by default, centering) and discard any portions of the source that lie outside the box. The source image is not resized.
    scale-down: Align the source within the target box (by default, centering) and, if necessary, scale the source down to ensure that the source fits within the box. This is the same as contain if that would shrink the image, otherwise it is the same as none.
See the Flutter BoxFit documentation for more information on these options.
Example:
Pug
Dart
1
.cover-image(
2
background-image="asset('images/background.jpg')"
3
fit='cover')
4
​
Copied!
1
Container(
2
decoration: BoxDecoration(
3
image: DecorationImage(
4
image: AssetImage(
5
'images/background.jpg',
6
),
7
fit: BoxFit.cover,
8
),
9
)
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shape

Describes how the container should be shaped.
Maps to Flutter BoxShape values in camelcase. Creates a Flutter BoxDecoration with the shape property set to to the value you pass.
Valid values:
    circle: A circle centered in the middle of the box into which the Border or BoxDecoration is painted. The diameter of the circle is the shortest dimension of the box, either the width or the height, such that the circle touches the edges of the box.
    rectangle: An axis-aligned, 2D rectangle. May have rounded corners (described by a BorderRadius). The edges of the rectangle will match the edges of the box into which the Border or BoxDecoration is painted.
Example:
Pug
Dart
1
.cover-image(
2
background-image="asset('images/background.jpg')"
3
shape='circle')
4
​
Copied!
1
Container(
2
decoration: BoxDecoration(
3
image: DecorationImage(
4
image: ExactAssetImage(
5
'images/background.jpg',
6
),
7
),
8
shape: BoxShape.circle,
9
),
10
)
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​

padding

Adds padding to containers.
Creates a Flutter padding property using EdgeInsets.only().
There are several padding properties you can use:
    padding-left: padding on the left side only
    padding-right: padding on the right side only
    padding-top: padding on the top side only
    padding-bottom: padding on the bottom side only
    padding: padding for all sides
These properties take values according to the CSS specification, with these exceptions:
    only direct values (numbers) are accepted
    no support for percentages
Examples of valid values:
1
padding-left: 10 // EdgeInsets.only(left: 10)
2
padding-top: 50 // EdgeInsets.only(top: 50)
3
padding: 10 // EdgeInsets.only(top: 10, left: 10, bottom: 10, right: 10)
4
padding: 5.5 7 // EdgeInsets.only(top: 5.5, left: 7, bottom: 5.5, right: 7)
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Example:
Pug
Dart
1
.greeting(padding=10) Hello world!
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1
Container(
2
child: Text(
3
'Hello world!',
4
),
5
padding: EdgeInsets.only(top: 10, right: 10, bottom: 10, left: 10),
6
)
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margin

Adds margin to containers.
Creates a Flutter margin property using EdgeInsets.only().
There are several margin properties you can use:
    margin-left: margin on the left side only
    margin-right: margin on the right side only
    margin-top: margin on the top side only
    margin-bottom: margin on the bottom side only
    margin: margin for all sides
These properties take values according to the CSS specification, with these exceptions:
    only direct values (numbers) are accepted
    no support for percentages
Examples of valid values:
1
margin-left: 10 // EdgeInsets.only(left: 10)
2
margin-top: 50 // EdgeInsets.only(top: 50)
3
margin: 10 // EdgeInsets.only(top: 10, left: 10, bottom: 10, right: 10)
4
margin: 5.5 7 // EdgeInsets.only(top: 5.5, left: 7, bottom: 5.5, right: 7)
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Example:
Pug
Dart
1
.greeting(margin=10) Hello world!
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1
Container(
2
child: Text(
3
'Hello world!',
4
),
5
margin: EdgeInsets.only(top: 10, right: 10, bottom: 10, left: 10),
6
)
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border-radius

Decorates a container with rounded borders.
Creates a Flutter BoxDecoration with borderRadius set using BorderRadius.only(). The values passed to BorderRadius.only for each corner are values of Radius.circular().
The border-radius property takes values according to the CSS specification, with these exceptions:
    only direct values (numbers) are accepted
    no support for percentages
Examples of valid values:
1
border-radius: 5 // BorderRadius.only(topLeft: Radius.circular(5), topRight: Radius.circular(5), bottomRight: Radius.circular(5), bottomLeft: Radius.circular(5))
2
border-radius: 2 5 2.5 7 // BorderRadius.only(topLeft: Radius.circular(2), topRight: Radius.circular(5), bottomRight: Radius.circular(2.5), bottomLeft: Radius.circular(7))
3
border-radius: 5 4 // BorderRadius.only(topLeft: Radius.circular(5), topRight: Radius.circular(4), bottomRight: Radius.circular(5), bottomLeft: Radius.circular(4))
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Example:
Pug
Dart
1
.greeting(border-radius=4 background-color='grey') Hello world!
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1
Container( // project://lib/pages/homepage/homepage.pug#8,5
2
child: Text(
3
'Hello world!',
4
),
5
decoration: BoxDecoration(
6
color: Colors.grey,
7
borderRadius: BorderRadius.only(topLeft: Radius.circular(5), topRight: Radius.circular(5), bottomRight: Radius.circular(5), bottomLeft: Radius.circular(5)),
8
),
9
)
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border

Adds borders to containers.
Creates a Flutter Border widget property using EdgeInsets.only().
Creates a Flutter BoxDecoration with border set using Border(). The values passed to Border() for each side are values of BorderSide, with an optional width, style and color.
There are several border properties you can use:
    border-left: style of the left border
    border-right: style of the right border
    border-top: style of the top border
    border-bottom: style of the bottom border
    border: style for all border sides
    border-style: line style for all border sides
    border-width: width of all border sides
    border-color: color of all border sides
These properties take values according to the CSS specification, with these exceptions:
    for styles, only solid and none are accepted
    width must be a number
    color must be a name (this is a bug, will be fixed soon)
    the border property only allows a single style for all, not a style per side
Examples of valid values:
1
border-left: 1 solid red
2
border-width: 3.3
3
border: none
4
border: 5.5 blue
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Example:
Pug
Dart
1
.greeting(border-top='1.4 red' border-bottom='0.5 green') Hello world!
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1
Container(
2
child: Text(
3
'Hello world!',
4
),
5
decoration: BoxDecoration(
6
border: Border(
7
top: BorderSide(
8
width: 1.4,
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color: Colors.red,
10
),
11
bottom: BorderSide(
12
width: 0.5,
13
color: Colors.green,
14
),
15
),
16
),
17
)
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box-shadow

Adds shadows to containers.
Creates a Flutter BoxDecoration with the boxShadow property set using BoxShadow.
It suppors multiple passed box shadows, separated by a comma.
A single box shadow can have 2, 3 or 4 or 5 properties: offset-x, offset-y, and optionally blur-radius offset-radius and color.
These properties take values according to the CSS specification, with these exceptions:
    values must be numbers
    colors not yet supported (coming soon)
    no support for the inset keyword
Examples of valid values:
1
box-shadow: 2 3 // single shadow with offset-x: 3, offset-y: 3
2
box-shadow: 2 2 5 // single shadow with offset-x: 2, offset-y: 2 and blur: 5
3
box-shadow: 4 3 6 7 // single grey shadow with blur: 6 and offset-radius: 7
4
box-shadow: 2 3, 3 4 9 4 // two box shadows example
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Example:
Pug
Dart
1
.greeting(box-shadow='2 3 5 7, -5 -2') Hello world!
Copied!
1
Container(
2
child: Text(
3
'Hello world!',
4
),
5
decoration: BoxDecoration(
6
boxShadow: [
7
BoxShadow(
8
offset: Offset(2.00, 3.00),
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blurRadius: 5.00,
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spreadRadius: 7.00,
11
),
12
BoxShadow(
13
offset: Offset(-5.00, -2.00),
14
)
15
],
16
),
17
)
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background-image

Sets a background image to containers.
Creates a Flutter BoxDecoration with the image property set using either NetworkImage or ExactAssetImage.
The background-image property can have one of two values:
    url("<image-url>") : creates a NetworkImage for the given url
    asset("<asset-name>"): uses an ExactAssetImage for the given name
Examples of valid values:
1
background-image: asset('images/background.jpg')
2
background-image: url('http://some/image/url.png')
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Example:
Pug
Dart
1
.cover-image(background-image="asset('images/background.jpg')")
Copied!
1
Container(
2
decoration: BoxDecoration(
3
image: DecorationImage(
4
image: ExactAssetImage(
5
'images/background.jpg',
6
),
7
),
8
),
9
)
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​background-color

Sets a background color to containers.
Creates a Flutter BoxDecoration with the color property set to the value you pass as a Color.
See the color property on valid values.
Example:
Pug
Dart
1
.redbox(width=200 height=200 background-color="red")
Copied!
1
Container(
2
decoration: BoxDecoration(
3
color: Colors.red,
4
),
5
width: 200,
6
height: 200,
7
)
Copied!

background-repeat

Sets how background images of a container should be repeated. Usually used together with background-image.
Creates a Flutter BoxDecoration with the repeat property of the image set to the value you pass.
Maps to Flutter ImageRepeat values in camelcase.
Valid values:
    no-repeat: Leave uncovered portions of the box transparent
    repeat: Repeat the image in both the x and y directions until the box is filled.
    repeat-x: Repeat the image in the x direction until the box is filled horizontally.
    repeat-y: Repeat the image in the y direction until the box is filled vertically.
Example:
Pug
Dart
1
.cover-image(
2
background-image="asset('images/background.jpg')"
3
background-repeat='no-repeat')
Copied!
1
Container( // project://lib/pages/homepage/homepage.pug#8,5
2
decoration: BoxDecoration(
3
image: DecorationImage(
4
image: ExactAssetImage(
5
'images/background.jpg',
6
),
7
repeat: ImageRepeat.noRepeat,
8
),
9
),
10
)
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background-size

Sets how background images of a container should be fitted in the container. Usually used together with background-image.
It does so by setting the fit property of the ImageDecoration that was created for the background-image.
See the fit property above for valid values and more information.
Example:
Pug
Dart
1
.cover-image(
2
background-image="asset('images/background.jpg')"
3
background-fit='cover')
Copied!
1
Container(
2
decoration: BoxDecoration(
3
image: DecorationImage(
4
image: ExactAssetImage(
5
'images/background.jpg',
6
),
7
fit: BoxFit.cover,
8
),
9
),
10
)
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main-axis-alignment

Controls how a row or column aligns its children on the main axis. See the Flutter layout documentation for more information.
Maps to Flutter MainAxisAlignment enum values in camelcase.
Valid values:
    start: Place the children as close to the start of the main axis as possible
    end: Place the children as close to the end of the main axis as possible
    center: Place the children as close to the middle of the main axis as possible
    space-around: Place the free space evenly between the children as well as half of that space before and after the first and last child
    space-between: Place the free space evenly between the children
    space-evenly: Place the free space evenly between the children as well as before and after the first and last child
Example:
Pug
Dart
1
row(main-axis-alignment="space-evenly")
2
.entry We
3
.entry Are
4
.entry Spaced
5
.entry Evenly
Copied!
1
Row(
2
children: [
3
Container(
4
child: Text(
5
'We',
6
),
7
),
8
Container(
9
child: Text(
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'Are',
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),
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),
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Container(
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child: Text(
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'Spaced',
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),
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),
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Container(
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child: Text(
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'Evenly',
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),
22
)
23
],
24
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
25
)
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cross-axis-alignment

Controls how a row or column aligns its children on the cross axis. See the Flutter layout documentation for more information.
Maps to Flutter CrossAxisAlignment enum values in camelcase.
Valid values:
    start: Place the children with their start edge aligned with the start side of the cross axis
    end: Place the children as close to the end of the cross axis as possible
    center: Place the children so that their centers align with the middle of the cross axis
    baseline: Place the children along the cross axis such that their baselines match
    stretch: Require the children to fill the cross axis
Example:
Pug
Dart
1
column(cross-axis-alignment="center")
2
.entry We
3
.entry Are
4
.entry Centered
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1
Column(
2
children: [
3
Container(
4
child: Text(
5
'We',
6
),
7
),
8
Container(
9
child: Text(
10
'Are',
11
),
12
),
13
Container(
14
child: Text(
15
'Centered',
16
),
17
)
18
],
19
crossAxisAlignment: CrossAxisAlignment.center,
20
),
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main-axis-size

Controls how a row or column to deals with left-over free space in the main axis. See the Flutter layout documentation for more information.
Maps to Flutter MainAxisSize enum values in camelcase.
Valid values:
    min: Minimize the amount of free space along the main axis, subject to the incoming layout constraints
    max: Maximize the amount of free space along the main axis, subject to the incoming layout constraints
Example:
Pug
Dart
1
column(main-axis-size="max")
2
.entry Some entry, left over space is maximized
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1
Column(
2
children: [
3
​
4
//-- ENTRY ----------------------------------------------------------
5
Container( // project://lib/pages/homepage/homepage.pug#14,6
6
child: Text(
7
'Some entry, left over space is maximized',
8
),
9
)
10
],
11
mainAxisSize: MainAxisSize.max,
12
)
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color, ...-color

Assigns a Color to a property. It works on any property either named color, or ending with -color.
When a color is set on a Container, it will set the text color, much like you would set a color CSS property on a DIV in HTML. It does so by wrapping the container with DefaultTextStyle.merge and setting the text color in the TextStyle that is passed.
Valid values:
    Any expression that evalutes to a Color. :color='Colors.red'
    A dash-cased color name from Colors. color='deep-orange'
    A dash-cased color name from Colors with a weight. color='deep-orange[400]'
    A hex color ala CSS. color='#FF3499'
    A hex color ala CSS with preceding transparency. color='#80FF3499'
Examples:
Using Pug
Using CSS
generated Dart
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.red-text-container(color='red') This text is red
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.red-container(:background-color='Colors.red')
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.orange-container(background-color='deep-orange')
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.green-container(background-color='green[300]')
5
.blue-container(background-color='#00F')
6
.blue-container2(background-color='#0000FF')
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1
.red-text-container
2
color: red
3
.red-container
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background-color: ':Colors.red'
5
.orange-container
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background-color: deep-orange
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.green-container
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background-color: green[300]
9
.blue-container
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background-color: #00F
11
.blue-container2
12
background-color: #0000FF
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Column(
2
children: [
3
DefaultTextStyle.merge(
4
child:
5
//-- RED-TEXT-CONTAINER ----------------------------------------------------------
6
Container(
7
child: Text(
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'This text is red',
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),
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),
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style: TextStyle(
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color: Colors.red,
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),
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),
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​
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//-- RED-CONTAINER ----------------------------------------------------------
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Container(
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decoration: BoxDecoration(
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color: Colors.red,
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),
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),
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​
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//-- ORANGE-CONTAINER ----------------------------------------------------------
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Container(
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decoration: BoxDecoration(
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color: Colors.deepOrange,
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),
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),
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​
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//-- GREEN-CONTAINER ----------------------------------------------------------
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Container(
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decoration: BoxDecoration(
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color: Colors.green.shade300,
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),
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),
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​
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//-- BLUE-CONTAINER ----------------------------------------------------------
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Container(
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decoration: BoxDecoration(
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color: Color(0xFF0000FF),
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),
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),
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​
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//-- BLUE-CONTAINER2 ----------------------------------------------------------
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Container(
46
decoration: BoxDecoration(
47
color: Color(0xFF0000FF),
48
),
49
)
50
],
51
)
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font-size

Sets the font size of text in the container and all its children. Only works on Containers.
It does so by wrapping the container with DefaultTextStyle.merge and setting the font size in the TextStyle that is passed.
Allowed values are ints, doubles and theme font sizes.
Example:
Pug
Dart
1
.test(font-size=12.5) Welcome!
Copied!
1
DefaultTextStyle.merge(
2
child: Container(
3
child: Text(
4
'Welcome!',
5
),
6
),
7
style: TextStyle(
8
fontSize: 12.5,
9
),
10
)
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font-weight

Sets the font weight of text in the container and all its children. Only works on Containers.
It does so by wrapping the container with DefaultTextStyle.merge and setting the font weight in the TextStyle that is passed.
Maps to Flutter FontWeight enum values in camelcase.
Valid values:
    normal: The default font weight
    bold: A commonly used font weight that is heavier than normal
    w100: Thin, the least thick
    w200: Extra light
    w300: Light
    w400: Normal / regular / plain
    w500: Medium
    w600: Semi bold
    w700: Bold
    w800: Extra bold
    w900: Black, the most thick
Note: Instead of passing w100, you may also pass 100, etc.
Example:
Pug
Dart
1
.test(font-weight='bold') Welcome!
Copied!
1
DefaultTextStyle.merge(
2
child:
3
Container(
4
child: Text(
5
'Welcome!',
6
),
7
),
8
style: TextStyle(
9
fontWeight: FontWeight.bold,
10
),
11
)
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