From 7bdea7afd9874e3c1b5ad75e5beb62763dcc7fe7 Mon Sep 17 00:00:00 2001
From: Miki <miki@amazon.com>
Date: Wed, 21 Aug 2024 15:21:21 -0700
Subject: [PATCH] Allow controlling the gap between the icon and the content of
 OuiButton and OuiButtonEmpty (#1367)

Signed-off-by: Miki <miki@amazon.com>
---
 CHANGELOG.md                                  |  1 +
 .../in_memory_table.test.tsx.snap             |  3 +
 .../button/__snapshots__/button.test.tsx.snap | 66 +++++++++++++++++++
 src/components/button/button.test.tsx         | 16 ++++-
 src/components/button/button.tsx              |  4 +-
 src/components/button/button_content.tsx      | 17 +++++
 .../__snapshots__/button_empty.test.tsx.snap  | 66 +++++++++++++++++++
 .../button/button_empty/button_empty.test.tsx | 16 ++++-
 .../button/button_empty/button_empty.tsx      |  4 +-
 .../__snapshots__/control_bar.test.tsx.snap   |  7 ++
 .../__snapshots__/split_button.test.tsx.snap  |  7 ++
 src/global_styling/mixins/_button.scss        | 18 +++++
 src/global_styling/variables/_size.scss       |  1 +
 .../global_styling/mixins/_button.scss        | 18 +++++
 .../global_styling/variables/_size.scss       |  1 +
 .../v9/global_styling/mixins/_button.scss     | 18 +++++
 .../v9/global_styling/variables/_size.scss    |  1 +
 17 files changed, 260 insertions(+), 4 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 32138579a4..5c0bca2d7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 ### 📈 Features/Enhancements
 
 - Add new icons for workspaces ([#1365](https://github.com/opensearch-project/oui/pull/1365))
+- Add a property to control the gap between an icon and the content of OuiButton and OuiButtonEmpty ([#1367](https://github.com/opensearch-project/oui/pull/1367))
 
 ### 🐛 Bug Fixes
 
diff --git a/src/components/basic_table/__snapshots__/in_memory_table.test.tsx.snap b/src/components/basic_table/__snapshots__/in_memory_table.test.tsx.snap
index ac72079baf..a65fa1469f 100644
--- a/src/components/basic_table/__snapshots__/in_memory_table.test.tsx.snap
+++ b/src/components/basic_table/__snapshots__/in_memory_table.test.tsx.snap
@@ -406,6 +406,7 @@ exports[`OuiInMemoryTable behavior pagination 1`] = `
                             >
                               <OuiButtonContent
                                 className="ouiButtonEmpty__content"
+                                iconGap="m"
                                 iconSide="right"
                                 iconSize="s"
                                 iconType="arrowDown"
@@ -576,6 +577,7 @@ exports[`OuiInMemoryTable behavior pagination 1`] = `
                                       >
                                         <OuiButtonContent
                                           className="ouiButtonEmpty__content"
+                                          iconGap="m"
                                           iconSide="left"
                                           iconSize="m"
                                           textProps={
@@ -659,6 +661,7 @@ exports[`OuiInMemoryTable behavior pagination 1`] = `
                                       >
                                         <OuiButtonContent
                                           className="ouiButtonEmpty__content"
+                                          iconGap="m"
                                           iconSide="left"
                                           iconSize="m"
                                           textProps={
diff --git a/src/components/button/__snapshots__/button.test.tsx.snap b/src/components/button/__snapshots__/button.test.tsx.snap
index 23d70d6fdb..3f88b56ce5 100644
--- a/src/components/button/__snapshots__/button.test.tsx.snap
+++ b/src/components/button/__snapshots__/button.test.tsx.snap
@@ -205,6 +205,72 @@ exports[`OuiButton props href secures the rel attribute when the target is _blan
 </a>
 `;
 
+exports[`OuiButton props iconGap m is rendered 1`] = `
+<button
+  class="ouiButton ouiButton--primary"
+  type="button"
+>
+  <span
+    class="ouiButtonContent ouiButton__content"
+  >
+    <span
+      class="ouiButtonContent__icon"
+      color="inherit"
+      data-ouiicon-type="user"
+    />
+    <span
+      class="ouiButton__text"
+    >
+      Content
+    </span>
+  </span>
+</button>
+`;
+
+exports[`OuiButton props iconGap none is rendered 1`] = `
+<button
+  class="ouiButton ouiButton--primary"
+  type="button"
+>
+  <span
+    class="ouiButtonContent ouiButtonContent--noIconGap ouiButton__content"
+  >
+    <span
+      class="ouiButtonContent__icon"
+      color="inherit"
+      data-ouiicon-type="user"
+    />
+    <span
+      class="ouiButton__text"
+    >
+      Content
+    </span>
+  </span>
+</button>
+`;
+
+exports[`OuiButton props iconGap s is rendered 1`] = `
+<button
+  class="ouiButton ouiButton--primary"
+  type="button"
+>
+  <span
+    class="ouiButtonContent ouiButtonContent--smallIconGap ouiButton__content"
+  >
+    <span
+      class="ouiButtonContent__icon"
+      color="inherit"
+      data-ouiicon-type="user"
+    />
+    <span
+      class="ouiButton__text"
+    >
+      Content
+    </span>
+  </span>
+</button>
+`;
+
 exports[`OuiButton props iconSide left is rendered 1`] = `
 <button
   class="ouiButton ouiButton--primary"
diff --git a/src/components/button/button.test.tsx b/src/components/button/button.test.tsx
index 73cdaf4c92..5d8d8eb603 100644
--- a/src/components/button/button.test.tsx
+++ b/src/components/button/button.test.tsx
@@ -33,7 +33,7 @@ import { render, mount } from 'enzyme';
 import { requiredProps } from '../../test/required_props';
 
 import { OuiButton, COLORS, SIZES } from './button';
-import { ICON_SIDES } from './button_content';
+import { ICON_GAPS, ICON_SIDES } from './button_content';
 
 describe('OuiButton', () => {
   test('is rendered', () => {
@@ -151,6 +151,20 @@ describe('OuiButton', () => {
       });
     });
 
+    describe('iconGap', () => {
+      ICON_GAPS.forEach((iconGap) => {
+        test(`${iconGap} is rendered`, () => {
+          const component = render(
+            <OuiButton iconType="user" iconGap={iconGap}>
+              Content
+            </OuiButton>
+          );
+
+          expect(component).toMatchSnapshot();
+        });
+      });
+    });
+
     describe('href', () => {
       it('secures the rel attribute when the target is _blank', () => {
         const component = render(<OuiButton href="#" target="_blank" />);
diff --git a/src/components/button/button.tsx b/src/components/button/button.tsx
index d091a866dd..4928d17497 100644
--- a/src/components/button/button.tsx
+++ b/src/components/button/button.tsx
@@ -90,7 +90,7 @@ export const SIZES = keysOf(sizeToClassNameMap);
 
 /**
  * Extends OuiButtonContentProps which provides
- * `iconType`, `iconSide`, and `textProps`
+ * `iconType`, `iconSide`, `iconGap`, and `textProps`
  */
 export interface OuiButtonProps extends OuiButtonContentProps, CommonProps {
   children?: ReactNode;
@@ -161,6 +161,7 @@ const OuiButtonDisplay = forwardRef<HTMLElement, OuiButtonDisplayProps>(
       children,
       className,
       iconType,
+      iconGap = 'm',
       iconSide = 'left',
       color = 'primary',
       size = 'm',
@@ -210,6 +211,7 @@ const OuiButtonDisplay = forwardRef<HTMLElement, OuiButtonDisplayProps>(
         isLoading={isLoading}
         iconType={iconType}
         iconSide={iconSide}
+        iconGap={iconGap}
         textProps={{ ...textProps, className: textClassNames }}
         {...contentProps}
         // className has to come last to override contentProps.className
diff --git a/src/components/button/button_content.tsx b/src/components/button/button_content.tsx
index a4a5bb8a7f..f9eef9259a 100644
--- a/src/components/button/button_content.tsx
+++ b/src/components/button/button_content.tsx
@@ -35,6 +35,7 @@ import { OuiLoadingSpinner } from '../loading';
 import { OuiIcon, IconType } from '../icon';
 
 export type ButtonContentIconSide = 'left' | 'right';
+export type ButtonContentIconGap = 's' | 'm' | 'none';
 
 const iconSideToClassNameMap: {
   [side in ButtonContentIconSide]: string | null;
@@ -43,8 +44,18 @@ const iconSideToClassNameMap: {
   right: 'ouiButtonContent--iconRight',
 };
 
+const iconGapToClassNameMap: {
+  [gap in ButtonContentIconGap]: string | null;
+} = {
+  m: null,
+  s: 'ouiButtonContent--smallIconGap',
+  none: 'ouiButtonContent--noIconGap',
+};
+
 export const ICON_SIDES = keysOf(iconSideToClassNameMap);
 
+export const ICON_GAPS = keysOf(iconGapToClassNameMap);
+
 export type OuiButtonContentType = HTMLAttributes<HTMLSpanElement>;
 
 /**
@@ -70,6 +81,10 @@ export interface OuiButtonContentProps extends CommonProps {
       'data-text'?: string;
     };
   iconSize?: 's' | 'm';
+  /**
+   * The gap between the icon and the content
+   */
+  iconGap?: ButtonContentIconGap;
 }
 
 export const OuiButtonContent: FunctionComponent<
@@ -80,6 +95,7 @@ export const OuiButtonContent: FunctionComponent<
   isLoading = false,
   iconType,
   iconSize = 'm',
+  iconGap = 'm',
   iconSide = 'left',
   ...contentProps
 }) => {
@@ -105,6 +121,7 @@ export const OuiButtonContent: FunctionComponent<
   const contentClassNames = classNames(
     'ouiButtonContent',
     iconSide ? iconSideToClassNameMap[iconSide] : null,
+    iconGap ? iconGapToClassNameMap[iconGap] : null,
     contentProps && contentProps.className
   );
 
diff --git a/src/components/button/button_empty/__snapshots__/button_empty.test.tsx.snap b/src/components/button/button_empty/__snapshots__/button_empty.test.tsx.snap
index 9bb95ce7bc..acefe9bc2c 100644
--- a/src/components/button/button_empty/__snapshots__/button_empty.test.tsx.snap
+++ b/src/components/button/button_empty/__snapshots__/button_empty.test.tsx.snap
@@ -190,6 +190,72 @@ exports[`OuiButtonEmpty props href secures the rel attribute when the target is
 </a>
 `;
 
+exports[`OuiButtonEmpty props iconGap m is rendered 1`] = `
+<button
+  class="ouiButtonEmpty ouiButtonEmpty--primary"
+  type="button"
+>
+  <span
+    class="ouiButtonContent ouiButtonEmpty__content"
+  >
+    <span
+      class="ouiButtonContent__icon"
+      color="inherit"
+      data-ouiicon-type="user"
+    />
+    <span
+      class="ouiButtonEmpty__text"
+    >
+      Content
+    </span>
+  </span>
+</button>
+`;
+
+exports[`OuiButtonEmpty props iconGap none is rendered 1`] = `
+<button
+  class="ouiButtonEmpty ouiButtonEmpty--primary"
+  type="button"
+>
+  <span
+    class="ouiButtonContent ouiButtonContent--noIconGap ouiButtonEmpty__content"
+  >
+    <span
+      class="ouiButtonContent__icon"
+      color="inherit"
+      data-ouiicon-type="user"
+    />
+    <span
+      class="ouiButtonEmpty__text"
+    >
+      Content
+    </span>
+  </span>
+</button>
+`;
+
+exports[`OuiButtonEmpty props iconGap s is rendered 1`] = `
+<button
+  class="ouiButtonEmpty ouiButtonEmpty--primary"
+  type="button"
+>
+  <span
+    class="ouiButtonContent ouiButtonContent--smallIconGap ouiButtonEmpty__content"
+  >
+    <span
+      class="ouiButtonContent__icon"
+      color="inherit"
+      data-ouiicon-type="user"
+    />
+    <span
+      class="ouiButtonEmpty__text"
+    >
+      Content
+    </span>
+  </span>
+</button>
+`;
+
 exports[`OuiButtonEmpty props iconSide left is rendered 1`] = `
 <button
   class="ouiButtonEmpty ouiButtonEmpty--primary"
diff --git a/src/components/button/button_empty/button_empty.test.tsx b/src/components/button/button_empty/button_empty.test.tsx
index 009b6ebbb4..ef4047be5e 100644
--- a/src/components/button/button_empty/button_empty.test.tsx
+++ b/src/components/button/button_empty/button_empty.test.tsx
@@ -33,7 +33,7 @@ import { render, mount } from 'enzyme';
 import { requiredProps } from '../../../test/required_props';
 
 import { OuiButtonEmpty, COLORS, SIZES, FLUSH_TYPES } from './button_empty';
-import { ICON_SIDES } from '../button_content';
+import { ICON_GAPS, ICON_SIDES } from '../button_content';
 
 describe('OuiButtonEmpty', () => {
   test('is rendered', () => {
@@ -129,6 +129,20 @@ describe('OuiButtonEmpty', () => {
       });
     });
 
+    describe('iconGap', () => {
+      ICON_GAPS.forEach((iconGap) => {
+        test(`${iconGap} is rendered`, () => {
+          const component = render(
+            <OuiButtonEmpty iconType="user" iconGap={iconGap}>
+              Content
+            </OuiButtonEmpty>
+          );
+
+          expect(component).toMatchSnapshot();
+        });
+      });
+    });
+
     describe('flush', () => {
       FLUSH_TYPES.forEach((flushType) => {
         test(`${flushType} is rendered`, () => {
diff --git a/src/components/button/button_empty/button_empty.tsx b/src/components/button/button_empty/button_empty.tsx
index 4c4495ebda..b093305709 100644
--- a/src/components/button/button_empty/button_empty.tsx
+++ b/src/components/button/button_empty/button_empty.tsx
@@ -85,7 +85,7 @@ export const FLUSH_TYPES = keysOf(flushTypeToClassNameMap);
 
 /**
  * Extends OuiButtonContentProps which provides
- * `iconType`, `iconSide`, and `textProps`
+ * `iconType`, `iconSide`, `iconGap`, and `textProps`
  */
 export interface CommonOuiButtonEmptyProps
   extends OuiButtonContentProps,
@@ -136,6 +136,7 @@ export const OuiButtonEmpty: FunctionComponent<OuiButtonEmptyProps> = ({
   children,
   className,
   iconType,
+  iconGap = 'm',
   iconSide = 'left',
   color = 'primary',
   size,
@@ -189,6 +190,7 @@ export const OuiButtonEmpty: FunctionComponent<OuiButtonEmptyProps> = ({
       iconType={iconType}
       iconSide={iconSide}
       iconSize={iconSize}
+      iconGap={iconGap}
       textProps={{ ...textProps, className: textClassNames }}
       {...contentProps}
       // className has to come last to override contentProps.className
diff --git a/src/components/control_bar/__snapshots__/control_bar.test.tsx.snap b/src/components/control_bar/__snapshots__/control_bar.test.tsx.snap
index cadd4fe012..96aeb1fa2f 100644
--- a/src/components/control_bar/__snapshots__/control_bar.test.tsx.snap
+++ b/src/components/control_bar/__snapshots__/control_bar.test.tsx.snap
@@ -350,6 +350,7 @@ exports[`OuiControlBar props leftOffset is rendered 1`] = `
                 >
                   <OuiButtonContent
                     className="ouiButton__content"
+                    iconGap="m"
                     iconSide="left"
                     textProps={
                       Object {
@@ -690,6 +691,7 @@ exports[`OuiControlBar props maxHeight is rendered 1`] = `
                 >
                   <OuiButtonContent
                     className="ouiButton__content"
+                    iconGap="m"
                     iconSide="left"
                     textProps={
                       Object {
@@ -1029,6 +1031,7 @@ exports[`OuiControlBar props mobile is rendered 1`] = `
                 >
                   <OuiButtonContent
                     className="ouiButton__content"
+                    iconGap="m"
                     iconSide="left"
                     textProps={
                       Object {
@@ -1272,6 +1275,7 @@ exports[`OuiControlBar props position is rendered 1`] = `
             >
               <OuiButtonContent
                 className="ouiButton__content"
+                iconGap="m"
                 iconSide="left"
                 textProps={
                   Object {
@@ -1596,6 +1600,7 @@ exports[`OuiControlBar props rightOffset is rendered 1`] = `
                 >
                   <OuiButtonContent
                     className="ouiButton__content"
+                    iconGap="m"
                     iconSide="left"
                     textProps={
                       Object {
@@ -1940,6 +1945,7 @@ exports[`OuiControlBar props showContent is rendered 1`] = `
                 >
                   <OuiButtonContent
                     className="ouiButton__content"
+                    iconGap="m"
                     iconSide="left"
                     textProps={
                       Object {
@@ -2284,6 +2290,7 @@ exports[`OuiControlBar props size is rendered 1`] = `
                 >
                   <OuiButtonContent
                     className="ouiButton__content"
+                    iconGap="m"
                     iconSide="left"
                     textProps={
                       Object {
diff --git a/src/components/split_button/__snapshots__/split_button.test.tsx.snap b/src/components/split_button/__snapshots__/split_button.test.tsx.snap
index b7fe6d03a8..0cac6849a9 100644
--- a/src/components/split_button/__snapshots__/split_button.test.tsx.snap
+++ b/src/components/split_button/__snapshots__/split_button.test.tsx.snap
@@ -132,6 +132,7 @@ exports[`OuiSplitButton onClick events selection list is opened on drop-down but
                   >
                     <OuiButtonContent
                       className="ouiButton__content"
+                      iconGap="m"
                       iconSide="left"
                       textProps={
                         Object {
@@ -1209,6 +1210,7 @@ exports[`OuiSplitButton options rendering option with href renders link 1`] = `
                   >
                     <OuiButtonContent
                       className="ouiButton__content"
+                      iconGap="m"
                       iconSide="left"
                       textProps={
                         Object {
@@ -2067,6 +2069,7 @@ exports[`OuiSplitButton options rendering options are rendered when select is op
                   >
                     <OuiButtonContent
                       className="ouiButton__content"
+                      iconGap="m"
                       iconSide="left"
                       textProps={
                         Object {
@@ -3080,6 +3083,7 @@ exports[`OuiSplitButton options rendering selectedItem 0 is rendered 1`] = `
                   >
                     <OuiButtonContent
                       className="ouiButton__content"
+                      iconGap="m"
                       iconSide="left"
                       textProps={
                         Object {
@@ -4164,6 +4168,7 @@ exports[`OuiSplitButton options rendering selectedItem last is rendered 1`] = `
                   >
                     <OuiButtonContent
                       className="ouiButton__content"
+                      iconGap="m"
                       iconSide="left"
                       textProps={
                         Object {
@@ -5451,6 +5456,7 @@ exports[`OuiSplitButton simple button display display simple button when options
                   >
                     <OuiButtonContent
                       className="ouiButton__content"
+                      iconGap="m"
                       iconSide="left"
                       textProps={
                         Object {
@@ -5572,6 +5578,7 @@ exports[`OuiSplitButton simple button display ignore initiallyOpen when options
                   >
                     <OuiButtonContent
                       className="ouiButton__content"
+                      iconGap="m"
                       iconSide="left"
                       textProps={
                         Object {
diff --git a/src/global_styling/mixins/_button.scss b/src/global_styling/mixins/_button.scss
index 9aa4c37ad2..2d5aec7052 100644
--- a/src/global_styling/mixins/_button.scss
+++ b/src/global_styling/mixins/_button.scss
@@ -76,6 +76,16 @@
       margin-inline-start: 0; // 1, 2
       margin-inline-end: $ouiSizeS; // 1, 2
     }
+
+    &.ouiButtonContent--smallIconGap > * + * {
+      margin-inline-start: 0; // 1, 2
+      margin-inline-end: $ouiSizeXXS; // 1, 2
+    }
+
+    &.ouiButtonContent--noIconGap > * + * {
+      margin-inline-start: 0; // 1, 2
+      margin-inline-end: 0; // 1, 2
+    }
   } @else {
     display: flex;
     justify-content: center;
@@ -84,6 +94,14 @@
     > * + * {
       margin-inline-start: $ouiSizeS; // 1
     }
+
+    &.ouiButtonContent--smallIconGap > * + * {
+      margin-inline-start: $ouiSizeXXS; // 1
+    }
+
+    &.ouiButtonContent--noIconGap > * + * {
+      margin-inline-start: 0; // 1
+    }
   }
 }
 
diff --git a/src/global_styling/variables/_size.scss b/src/global_styling/variables/_size.scss
index 12cd4115fd..3e1670e055 100644
--- a/src/global_styling/variables/_size.scss
+++ b/src/global_styling/variables/_size.scss
@@ -11,6 +11,7 @@
 
 $ouiSize:     16px !default;
 
+$ouiSizeXXS:   $ouiSize * .125 !default;
 $ouiSizeXS:   $ouiSize * .25 !default;
 $ouiSizeS:    $ouiSize * .5 !default;
 $ouiSizeM:    $ouiSize * .75 !default;
diff --git a/src/themes/oui-next/global_styling/mixins/_button.scss b/src/themes/oui-next/global_styling/mixins/_button.scss
index 0e3f7dfc19..47de315008 100644
--- a/src/themes/oui-next/global_styling/mixins/_button.scss
+++ b/src/themes/oui-next/global_styling/mixins/_button.scss
@@ -77,6 +77,16 @@
       margin-inline-start: 0; // 1, 2
       margin-inline-end: $ouiSizeS; // 1, 2
     }
+
+    &.ouiButtonContent--smallIconGap > * + * {
+      margin-inline-start: 0; // 1, 2
+      margin-inline-end: $ouiSizeXXS;
+    }
+
+    &.ouiButtonContent--noIconGap > * + * {
+      margin-inline-start: 0; // 1, 2
+      margin-inline-end: 0;
+    }
   } @else {
     display: flex;
     justify-content: center;
@@ -85,6 +95,14 @@
     > * + * {
       margin-inline-start: $ouiSizeS; // 1
     }
+
+    &.ouiButtonContent--smallIconGap > * + * {
+      margin-inline-start: $ouiSizeXXS; // 1
+    }
+
+    &.ouiButtonContent--noIconGap > * + * {
+      margin-inline-start: 0; // 1
+    }
   }
 }
 
diff --git a/src/themes/oui-next/global_styling/variables/_size.scss b/src/themes/oui-next/global_styling/variables/_size.scss
index 12cd4115fd..3e1670e055 100644
--- a/src/themes/oui-next/global_styling/variables/_size.scss
+++ b/src/themes/oui-next/global_styling/variables/_size.scss
@@ -11,6 +11,7 @@
 
 $ouiSize:     16px !default;
 
+$ouiSizeXXS:   $ouiSize * .125 !default;
 $ouiSizeXS:   $ouiSize * .25 !default;
 $ouiSizeS:    $ouiSize * .5 !default;
 $ouiSizeM:    $ouiSize * .75 !default;
diff --git a/src/themes/v9/global_styling/mixins/_button.scss b/src/themes/v9/global_styling/mixins/_button.scss
index 0e3f7dfc19..493ea25bc1 100644
--- a/src/themes/v9/global_styling/mixins/_button.scss
+++ b/src/themes/v9/global_styling/mixins/_button.scss
@@ -77,6 +77,16 @@
       margin-inline-start: 0; // 1, 2
       margin-inline-end: $ouiSizeS; // 1, 2
     }
+
+    &.ouiButtonContent--smallIconGap > * + * {
+      margin-inline-start: 0; // 1, 2
+      margin-inline-end: $ouiSizeXXS; // 1, 2
+    }
+
+    &.ouiButtonContent--noIconGap > * + * {
+      margin-inline-start: 0; // 1, 2
+      margin-inline-end: 0; // 1, 2
+    }
   } @else {
     display: flex;
     justify-content: center;
@@ -85,6 +95,14 @@
     > * + * {
       margin-inline-start: $ouiSizeS; // 1
     }
+
+    &.ouiButtonContent--smallIconGap > * + * {
+      margin-inline-start: $ouiSizeXXS; // 1
+    }
+
+    &.ouiButtonContent--noIconGap > * + * {
+      margin-inline-start: 0; // 1
+    }
   }
 }
 
diff --git a/src/themes/v9/global_styling/variables/_size.scss b/src/themes/v9/global_styling/variables/_size.scss
index 12cd4115fd..3e1670e055 100644
--- a/src/themes/v9/global_styling/variables/_size.scss
+++ b/src/themes/v9/global_styling/variables/_size.scss
@@ -11,6 +11,7 @@
 
 $ouiSize:     16px !default;
 
+$ouiSizeXXS:   $ouiSize * .125 !default;
 $ouiSizeXS:   $ouiSize * .25 !default;
 $ouiSizeS:    $ouiSize * .5 !default;
 $ouiSizeM:    $ouiSize * .75 !default;