Snippets flexbox

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+// Flexbox Containers
+//
+// The 'flex' value causes an element to generate a block-level flex
+// container box.
+//
+// Display: flex
+//
+// http://w3.org/tr/css3-flexbox/#flex-containers
+@mixin flexbox() {
+  display: -moz-flex;
+  display: -ms-flexbox;
+  display: -webkit-box;
+  display: -webkit-flex;
+  display: flex;
+}
+
+// Flexbox 'Flex' (shorthand)
+//
+// The 'flex' property specifies the components of a flexible length: the
+// flex grow factor and flex shrink factor, and the flex basis. When an
+// element is a flex item, 'flex' is consulted instead of the main size
+// property to determine the main size of the element. If an element is
+// not a flex item, 'flex' has no effect.
+//
+// Values: none | <flex-grow> <flex-shrink> || <flex-basis>
+// Default: See individual properties (1 1 0)
+//
+// http://w3.org/tr/css3-flexbox/#flex-property
+
+@mixin flex($fg: 1, $fs: null, $fb: null) {
+
+  $fg-boxflex: $fg;
+
+  @if type-of($fg) == 'list' {
+    $fg-boxflex: nth($fg, 1);
+  }
+
+  -webkit-box-flex: $fg-boxflex;
+     -moz-box-flex: $fg-boxflex;
+      -webkit-flex: $fg $fs $fb;
+         -moz-flex: $fg $fs $fb;
+          -ms-flex: $fg $fs $fb;
+              flex: $fg $fs $fb;
+}
+
+// Flexbox Direction
+//
+// The 'flex-direction' property specifies how flex items are placed in
+// the flex container, by setting the direction of the flex container's
+// main axis. This determines the direction that flex items are laid out in.
+//
+// Values: row | row-reverse | column | column-reverse
+// Default: row
+//
+// http://w3.org/tr/css3-flexbox/#flex-direction-property
+
+@mixin flex-direction($value: row) {
+  @if $value == 'row-reverse' {
+    -webkit-box-direction: reverse;
+    -webkit-box-orient: horizontal;
+  } @else if $value == 'column' {
+    -webkit-box-direction: normal;
+    -webkit-box-orient: vertical;
+  } @else if $value == 'column-reverse' {
+    -webkit-box-direction: reverse;
+    -webkit-box-orient: vertical;
+  } @else {
+    -webkit-box-direction: normal;
+    -webkit-box-orient: horizontal;
+  }
+
+  -webkit-flex-direction: $value;
+     -moz-flex-direction: $value;
+      -ms-flex-direction: $value;
+          flex-direction: $value;
+}
+
+// Flexbox Wrap
+//
+// The 'flex-wrap' property controls whether the flex container is single-line
+// or multi-line, and the direction of the cross-axis, which determines
+// the direction new lines are stacked in.
+//
+// Values: nowrap | wrap | wrap-reverse
+// Default: nowrap
+//
+// http://w3.org/tr/css3-flexbox/#flex-wrap-property
+
+@mixin flex-wrap($value: nowrap) {
+  @if $value == 'nowrap' {
+    -ms-flex-wrap: none;
+  } @else {
+    -ms-flex-wrap: $value;
+  }
+
+  -webkit-flex-wrap: $value;
+     -moz-flex-wrap: $value;
+          flex-wrap: $value;
+}
+
+// Flexbox Flow (shorthand)
+//
+// The 'flex-flow' property is a shorthand for setting the 'flex-direction'
+// and 'flex-wrap' properties, which together define the flex container's
+// main and cross axes.
+//
+// Values: <flex-direction> | <flex-wrap>
+// Default: row nowrap
+//
+// http://w3.org/tr/css3-flexbox/#flex-flow-property
+
+@mixin flex-flow($values: (row nowrap)) {
+  -webkit-flex-flow: $values;
+     -moz-flex-flow: $values;
+      -ms-flex-flow: $values;
+          flex-flow: $values;
+}
+
+// Flexbox Order
+//
+// The 'order' property controls the order in which flex items appear within
+// their flex container, by assigning them to ordinal groups.
+//
+// Default: 0
+//
+// http://w3.org/tr/css3-flexbox/#order-property
+
+@mixin flex-order($int: 0) {
+  -webkit-box-ordinal-group: $int;
+     -moz-box-ordinal-group: $int;
+             -ms-flex-order: $int;
+              -webkit-order: $int;
+                 -moz-order: $int;
+                      order: $int;
+}
+
+// Flexbox Grow
+//
+// The 'flex-grow' property sets the flex grow factor. Negative numbers
+// are invalid.
+//
+// Default: 0
+//
+// http://w3.org/tr/css3-flexbox/#flex-grow-property
+
+@mixin flex-grow($int: 0) {
+  -webkit-flex-grow: $int;
+  -ms-flex-positive: $int;
+   -webkit-box-flex: $int;
+     -moz-flex-grow: $int;
+      -ms-flex-grow: $int;
+          flex-grow: $int;
+}
+
+// Flexbox Shrink
+//
+// The 'flex-shrink' property sets the flex shrink factor. Negative numbers
+// are invalid.
+//
+// Default: 1
+//
+// http://w3.org/tr/css3-flexbox/#flex-shrink-property
+
+@mixin flex-shrink($int: 1) {
+  -webkit-flex-shrink: $int;
+    -ms-flex-negative: $int;
+     -moz-flex-shrink: $int;
+      -ms-flex-shrink: $int;
+          flex-shrink: $int;
+}
+
+// Flexbox Basis
+//
+// The 'flex-basis' property sets the flex basis. Negative lengths are invalid.
+//
+// Values: Like 'width'
+// Default: auto
+//
+// http://www.w3.org/TR/css3-flexbox/#flex-basis-property
+
+@mixin flex-basis($value: auto) {
+  -ms-flex-preferred-size: $value;
+       -webkit-flex-basis: $value;
+          -moz-flex-basis: $value;
+           -ms-flex-basis: $value;
+               flex-basis: $value;
+}
+
+// Flexbox Justify Content
+//
+// The 'justify-content' property aligns flex items along the main axis
+// of the current line of the flex container. This is done after any flexible
+// lengths and any auto margins have been resolved. Typically it helps distribute
+// extra free space leftover when either all the flex items on a line are
+// inflexible, or are flexible but have reached their maximum size. It also
+// exerts some control over the alignment of items when they overflow the line.
+//
+// Note: 'space-*' values not supported in older syntaxes.
+//
+// Values: flex-start | flex-end | center | space-between | space-around
+// Default: flex-start
+//
+// http://w3.org/tr/css3-flexbox/#justify-content-property
+
+@mixin justify-content($value: flex-start) {
+  @if $value == 'flex-start' {
+    -webkit-box-pack: start;
+       -ms-flex-pack: start;
+  } @else if $value == 'flex-end' {
+    -webkit-box-pack: end;
+       -ms-flex-pack: end;
+  } @else if $value == 'space-between' {
+    -webkit-box-pack: justify;
+       -ms-flex-pack: justify;
+  } @else if $value == 'space-around' {
+    -ms-flex-pack: distribute;
+  } @else {
+    -webkit-box-pack: $value;
+       -ms-flex-pack: $value;
+  }
+
+  -webkit-justify-content: $value;
+     -moz-justify-content: $value;
+      -ms-justify-content: $value;
+          justify-content: $value;
+            -ms-flex-pack: $value;
+}
+
+// Flexbox Align Content
+//
+// The 'align-content' property aligns a flex container's lines within the
+// flex container when there is extra space in the cross-axis, similar to
+// how 'justify-content' aligns individual items within the main-axis. Note,
+// this property has no effect when the flexbox has only a single line.
+//
+// Values: flex-start | flex-end | center | space-between | space-around | stretch
+// Default: stretch
+//
+// http://w3.org/tr/css3-flexbox/#align-content-property
+
+@mixin align-content($value: stretch) {
+  @if $value == 'flex-start' {
+    -ms-flex-line-pack: start;
+  } @else if $value == 'flex-end' {
+    -ms-flex-line-pack: end;
+  } @else {
+    -ms-flex-line-pack: $value;
+  }
+
+  -webkit-align-content: $value;
+     -moz-align-content: $value;
+      -ms-align-content: $value;
+          align-content: $value;
+}
+
+// Flexbox Align Items
+//
+// Flex items can be aligned in the cross axis of the current line of the
+// flex container, similar to 'justify-content' but in the perpendicular
+// direction. 'align-items' sets the default alignment for all of the flex
+// container's items, including anonymous flex items. 'align-self' allows
+// this default alignment to be overridden for individual flex items. (For
+// anonymous flex items, 'align-self' always matches the value of 'align-items'
+// on their associated flex container.)
+//
+// Values: flex-start | flex-end | center | baseline | stretch
+// Default: stretch
+//
+// http://w3.org/tr/css3-flexbox/#align-items-property
+
+@mixin align-items($value: stretch) {
+  @if $value == 'flex-start' {
+    -webkit-box-align: start;
+       -ms-flex-align: start;
+  } @else if $value == 'flex-end' {
+    -webkit-box-align: end;
+       -ms-flex-align: end;
+  } @else {
+    -webkit-box-align: $value;
+       -ms-flex-align: $value;
+  }
+
+  -webkit-align-items: $value;
+     -moz-align-items: $value;
+      -ms-align-items: $value;
+          align-items: $value;
+}
+
+// Flexbox Align Self
+//
+// Values: auto | flex-start | flex-end | center | baseline | stretch
+// Default: auto
+
+@mixin align-self($value: auto) {
+  @if $value == 'flex-start' {
+    -ms-flex-item-align: start;
+  } @else if $value == 'flex-end' {
+    -ms-flex-item-align: end;
+  } @else {
+    -ms-flex-item-align: $value;
+  }
+
+  -webkit-align-self: $value;
+     -moz-align-self: $value;
+      -ms-align-self: $value;
+          align-self: $value;
+}