[Storybook] Update styles to be more accurate to prod

.storybook/global.less

@@ -0,0 +1,42 @@
+/**
+ * This file contains styles that are used in prod that ultimately
+ * get passed onto Perseus components. This file is imported in the
+ * .storybook/preview.js file so that the components can have the same
+ * styles as prod when viewed within Storybook.
+ */
+
+// Variables
+@offBlack: #21242c;
+@wonderBlocksFontFamily: "Lato", "Noto Sans", "Helvetica", "Corbel", sans-serif;
+
+// Layers
+@layer reset, shared;
+
+@layer reset {
+    // A CSS reset. Needed for every page.
+    @import (inline) "./reset.css";
+}
+
+@layer shared {
+    html,
+    body {
+        height: 100%;
+    }
+
+    body {
+        font-family: @wonderBlocksFontFamily, "Helvetica", "Corbel", sans-serif;
+        font-size: 14px;
+        margin: 0;
+        color: @offBlack;
+        line-height: 1.4;
+        min-width: 0 !important;
+    }
+
+    .box-sizing-border-box-reset {
+        box-sizing: border-box;
+    }
+
+    .box-sizing-border-box-reset * {
+        box-sizing: inherit;
+    }
+}

.storybook/preview.tsx

@@ -1,4 +1,4 @@
 import * as React from "react";
 import {color} from "@khanacademy/wonder-blocks-tokens";
 import {RenderStateRoot} from "@khanacademy/wonder-blocks-core";
 import {Dependencies} from "@khanacademy/perseus";
@@ -10,6 +10,7 @@
 } from "../testing/test-dependencies";
 
 import type {Preview} from "@storybook/react";
+import StoryWrapper from "./story-wrapper";
 
 // IMPORTANT: This code runs ONCE per story file, not per story within that file.
 // If you want code to run once per story, see `StorybookWrapper`.
@@ -23,7 +24,9 @@
         (Story) => (
             <RenderStateRoot>
                 <DependenciesContext.Provider value={storybookDependenciesV2}>
-                    <Story />
+                    <StoryWrapper>
+                        <Story />
+                    </StoryWrapper>
                 </DependenciesContext.Provider>
             </RenderStateRoot>
         ),

.storybook/reset.css

@@ -0,0 +1,131 @@
+/* http://meyerweb.com/eric/tools/css/reset/
+   v2.0 | 20110126
+   License: none (public domain)
+*/
+
+html,
+body,
+div,
+span,
+applet,
+object,
+iframe,
+h1,
+h2,
+h3,
+h4,
+h5,
+h6,
+p,
+blockquote,
+pre,
+a,
+abbr,
+acronym,
+address,
+big,
+cite,
+code,
+del,
+dfn,
+em,
+img,
+ins,
+kbd,
+q,
+s,
+samp,
+small,
+strike,
+strong,
+sub,
+sup,
+tt,
+var,
+b,
+u,
+i,
+center,
+dl,
+dt,
+dd,
+ol,
+ul,
+li,
+fieldset,
+form,
+label,
+legend,
+table,
+caption,
+tbody,
+tfoot,
+thead,
+tr,
+th,
+td,
+article,
+aside,
+canvas,
+details,
+embed,
+figure,
+figcaption,
+footer,
+header,
+hgroup,
+menu,
+nav,
+output,
+ruby,
+section,
+summary,
+time,
+mark,
+audio,
+video {
+    margin: 0;
+    padding: 0;
+    border: 0;
+    font-size: 100%;
+    font: inherit;
+    vertical-align: baseline;
+}
+/* HTML5 display-role reset for older browsers */
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+menu,
+nav,
+section {
+    display: block;
+}
+body {
+    line-height: 1;
+}
+ol,
+ul {
+    list-style: none;
+}
+blockquote,
+q {
+    quotes: none;
+}
+blockquote:before,
+blockquote:after,
+q:before,
+q:after {
+    content: "";
+    content: none;
+}
+table {
+    border-collapse: collapse;
+    border-spacing: 0;
+}
+
+/* End Reset */

.storybook/story-wrapper.tsx

@@ -0,0 +1,22 @@
+import * as React from "react";
+
+import "./global.less";
+
+/**
+ * Wrapper for Storybook stories that
+ * 1. Renders the story inside of a .framework-perseus container
+ * 2. Includes the global styles from prod
+ */
+function StoryWrapper(props) {
+    // Most of our components have an expectation to be
+    // rendered inside of a .framework-perseus container.
+    // We want to make sure we can include it here, since it
+    // can also affect the styling.
+    return (
+        <div className="framework-perseus box-sizing-border-box-reset">
+            {props.children}
+        </div>
+    );
+}
+
+export default StoryWrapper;