diff --git a/TODO.md b/TODO.md
index 2663040..cfa6319 100644
--- a/TODO.md
+++ b/TODO.md
@@ -5,6 +5,7 @@
 - [ ] General: Responsive on mobile
 - [ ] Talent tree: Reset button per tree (?)
 - [ ] Fix: Initial load `pointString` validation (make sure all talents are valid and their deps are met)
+- [ ] Fix: Arrow should start underneath the icon
 - [x] Talent tree: Arrows for dependencies
 - [x] System: Generate URL for chosen talents
 - [x] Talent tree: Prettier talent frames
diff --git a/src/App.scss b/src/App.scss
index d7bc0f5..b35cda8 100644
--- a/src/App.scss
+++ b/src/App.scss
@@ -1,10 +1,33 @@
 @import "sass/config";
 
 body {
+  color: white;
   background-color: #111;
   font-family: Verdana;
 }
 
+a {
+  text-decoration: none;
+  color: pink;
+
+  &:hover {
+    color: lighten(pink, 50%);
+  }
+}
+
+.container {
+  max-width: 900px;
+  margin: 0 auto;
+}
+
+.inline-items {
+  display: flex;
+
+  & > * {
+    margin-right: 1em;
+  }
+}
+
 .calculator {
   &__points {
     color: white;
@@ -48,10 +71,13 @@ body {
 
 .class-picker {
   display: flex;
-  justify-content: center;
   list-style: none;
-  margin-top: 2em;
-  margin-bottom: 2em;
+  padding: 0;
+  margin: 2em 0;
+
+  &--center {
+    justify-content: center;
+  }
 
   &__class {
     margin-right: 1em;
diff --git a/src/App.tsx b/src/App.tsx
index 509664a..aaf4595 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -1,14 +1,18 @@
 import React from 'react'
 import './App.scss'
 import { IndexRoute } from './components/IndexRoute'
-import { BrowserRouter as Router, Route } from 'react-router-dom'
+import { PlaygroundRoute } from './components/PlaygroundRoute'
+import { BrowserRouter as Router, Route, Switch } from 'react-router-dom'
 
 const App: React.FC = () => {
   return (
     <Router basename={process.env.NODE_ENV === 'production' ? '/wow-talent-calculator' : ''}>
     {/* <Router basename={process.env.NODE_ENV !== 'development' ? '%PUBLIC_URL%' : ''}> */}
       <div className="App">
-        <Route path="/:selectedClass?/:pointString?" component={IndexRoute} />
+        <Switch>
+          <Route exact path="/playground" component={PlaygroundRoute} />
+          <Route path="/:selectedClass?/:pointString?" component={IndexRoute} />
+        </Switch>
       </div>
     </Router>
   );
diff --git a/src/components/Arrow.scss b/src/components/Arrow.scss
index a19ffc1..3100081 100644
--- a/src/components/Arrow.scss
+++ b/src/components/Arrow.scss
@@ -110,8 +110,7 @@
     }
   }
 
-  &--right-down,
-  &--left-down {
+  &--side-down {
     // Position based on row
     @for $i from 0 through 6 {
       &[data-row="#{$i}"] {
diff --git a/src/components/Arrow.tsx b/src/components/Arrow.tsx
index 926b70d..b6c482e 100644
--- a/src/components/Arrow.tsx
+++ b/src/components/Arrow.tsx
@@ -31,7 +31,7 @@ export const Arrow: FC<Props> = ({ from, to, active = false }) => {
 
   const height = to.row - from.row
   const width = Math.abs(to.col - from.col)
-  
+
   const dir = getDirection(from, to)
   if (dir === 'right-down' || dir === 'left-down') {
     props['data-height'] = height
@@ -42,6 +42,7 @@ export const Arrow: FC<Props> = ({ from, to, active = false }) => {
 
   const className = classNames('arrow', `arrow--${dir}`, {
     'arrow--active': active,
+    'arrow--side-down': dir === 'right-down' || dir === 'left-down'
   })
 
   return <div className={className} {...props} />
diff --git a/src/components/Calculator.tsx b/src/components/Calculator.tsx
index 68b8e42..463b76d 100644
--- a/src/components/Calculator.tsx
+++ b/src/components/Calculator.tsx
@@ -99,8 +99,7 @@ export class Calculator extends React.PureComponent<Props> {
         <ul>
           <li><a href="/shaman/-5505000055523051-55">Shaman test</a></li>
           <li><a href="/shaman/-5595000055523051-55">Shaman test broken</a></li>
-          <li><a href="/rogue/-005055-50205302332212051">Rogue (should break, does not meet requirement)</a></li>
-          <li><a href="/rogue/-005055-50205302333212041">Rogue can unlearn first row AND dependency</a></li>
+          <li><a href="/rogue/325323125551351-3253552122555155231-55225313333212151">Full Rogue</a></li>
         </ul>
       </div>
     )
diff --git a/src/components/ClassPicker.tsx b/src/components/ClassPicker.tsx
index aa6fbc6..d773c33 100644
--- a/src/components/ClassPicker.tsx
+++ b/src/components/ClassPicker.tsx
@@ -7,6 +7,7 @@ import classNames from 'classnames'
 interface Props {
   /** Name of the selected class, lowercase */
   selected?: string
+  center?: boolean
 }
 
 const classNameForItem = (c: ClassData, selected: string) => classNames('class-picker__class', {
@@ -18,10 +19,11 @@ export class ClassPicker extends React.PureComponent<Props> {
   static whyDidYouRender = true
 
   render() {
-    const { selected } = this.props
+    const { selected, center = false } = this.props
 
     const cn = classNames('class-picker', {
-      'class-picker--has-selection': !!selected
+      'class-picker--has-selection': !!selected,
+      'class-picker--center': center,
     })
   
     return (
diff --git a/src/components/Icon.scss b/src/components/Icon.scss
index fbd99c8..9bfd333 100644
--- a/src/components/Icon.scss
+++ b/src/components/Icon.scss
@@ -1,11 +1,34 @@
 @import "../sass/_config";
 
+@mixin icon-size($size) {
+  $offset: $size * 0.1;
+
+  width: $size;
+  height: $size;
+
+  .icon__bg {
+    width: ceil($size - $offset);
+    height: ceil($size - $offset);
+    border-radius: $size / 8;
+    top: $size * 0.05;
+    left: $size * 0.05;
+  }
+
+  .icon__frame {
+    width: $size + $offset;
+    height: $size + $offset;
+    top: -($offset * .5);
+    left: -($offset * .5);
+  }
+}
+
 .icon {
   position: relative;
   background-position: center;
   background-repeat: no-repeat;
   background-size: contain;
   background-color: #222;
+  border-radius: 5px;
   
   &:hover {
     .icon__bg {
@@ -19,17 +42,16 @@
     }
   }
 
-  &--medium {
-    width: 40px;
-    height: 40px;
-    border-radius: 5px;
+  &--small {
+    @include icon-size(20px);
+  }
 
-    .icon__bg {
-      width: 36px;
-      height: 36px;
-      top: 2px;
-      left: 2px;
-    }
+  &--medium {
+    @include icon-size(40px);
+  }
+
+  &--large {
+    @include icon-size(60px);
   }
 
   &--golden {
@@ -47,17 +69,12 @@
   &__bg {
     position: absolute;
     background-size: cover;
-    border-radius: 5px;
     opacity: 1;
     transition: all 100ms ease-out;
   }
 
   &__frame {
     position: absolute;
-    width: 44px;
-    height: 44px;
-    top: -2px;
-    left: -2px;
     background-image: url('../images/icons/large/default.png');
     background-repeat: no-repeat;
     background-size: contain;
diff --git a/src/components/Icon.tsx b/src/components/Icon.tsx
index 445a3e4..bd6bdaa 100644
--- a/src/components/Icon.tsx
+++ b/src/components/Icon.tsx
@@ -11,7 +11,7 @@ interface Props {
 export const Icon: FC<Props> = ({ name, size = 'medium', golden = false, children }) => {
   const [hasLoadedImage, setHasLoadedImage] = useState(false)
 
-  const bgSize = size === 'medium' ? 'large' : 'medium'
+  const bgSize = size !== 'small' ? 'large' : 'medium'
   const url = `https://wow.zamimg.com/images/wow/icons/${bgSize}/${name}.jpg`
 
   useEffect(() => {
diff --git a/src/components/IndexRoute.tsx b/src/components/IndexRoute.tsx
index da63762..8c5002f 100644
--- a/src/components/IndexRoute.tsx
+++ b/src/components/IndexRoute.tsx
@@ -33,7 +33,7 @@ export class IndexRoute extends React.PureComponent<Props> {
 
     return (
       <div className="index">
-        <ClassPicker selected={selectedClass} />
+        <ClassPicker center selected={selectedClass} />
   
         {selectedClass && 
           <Calculator 
diff --git a/src/components/PlaygroundRoute.tsx b/src/components/PlaygroundRoute.tsx
new file mode 100644
index 0000000..9a250d9
--- /dev/null
+++ b/src/components/PlaygroundRoute.tsx
@@ -0,0 +1,71 @@
+import React from 'react'
+import { ClassPicker } from './ClassPicker'
+import { match } from 'react-router-dom'
+import { RouteComponentProps } from 'react-router'
+import { Icon } from './Icon';
+import { Tooltip } from './Tooltip';
+
+interface Props extends RouteComponentProps {
+  match: match<{ 
+    selectedClass: string
+    pointString: string
+  }>
+}
+
+const iconNames = [
+  'foo',
+  'spell_holy_prayerofhealing',
+  'ability_sap',
+  'class_shaman',
+  'inv_ammo_firetar',
+  'spell_shadow_requiem',
+]
+
+export class PlaygroundRoute extends React.PureComponent<Props> {
+  static whyDidYouRender = true
+
+  render() {
+    const { match, history } = this.props
+
+
+
+    return (
+      <div className="playground container">
+        <h2>Class Picker</h2>
+        <ClassPicker />
+
+        <h2>Icons</h2>
+
+        <h3>Small Icons</h3>
+        <div className="inline-items">
+          {iconNames.map((n) => <Icon key={n} name={n} size="small" />)}
+        </div>
+
+        <h3>Medium Icons</h3>
+        <div className="inline-items">
+          {iconNames.map((n) => <Icon key={n} name={n} size="medium" />)}
+        </div>
+
+        <h3>Large Icons</h3>
+        <div className="inline-items">
+          {iconNames.map((n) => <Icon key={n} name={n} size="large" />)}
+        </div>
+
+        <h2>Tooltip</h2>
+        <Tooltip inline />
+
+        <Tooltip>
+          <strong>I can use normal HTML in here</strong>
+          <br />
+          And even <a href="#">link</a> to exciting places!
+        </Tooltip>
+
+        <Tooltip title="Sanctuary Post" />
+
+        <Tooltip title="Fixed width" fixed />
+
+        <Tooltip title="Override fixed width" fixed width="600px" />
+      </div>
+    )
+  }
+}
\ No newline at end of file
diff --git a/src/components/Tooltip.scss b/src/components/Tooltip.scss
index e69de29..ed15b66 100644
--- a/src/components/Tooltip.scss
+++ b/src/components/Tooltip.scss
@@ -0,0 +1,69 @@
+@mixin tooltip-base {
+  font-size: 12px;
+  font-family: Verdana, Geneva, Tahoma, sans-serif;
+  line-height: 1.4;
+
+  &__inner {
+    display: inline-block;
+    flex-direction: column;
+    align-items: flex-start;
+  }
+
+  &__top {
+    display: flex;
+
+    &:after {
+      content: '';
+      padding: 3px;
+      background: url('../images/tooltip-background.png');
+      background-position: top right;
+    }
+  }
+
+  &__body {
+    min-height: 2px;
+    padding: 8px 4px 2px 10px;
+    background: url('../images/tooltip-background.png');
+    background-position: top left;
+  }
+
+  &__footer {
+    display: flex;
+    width: 100%;
+
+    &:before {
+      content: '';
+      flex: 1;
+      padding: 3px;
+      background: url('../images/tooltip-background.png');
+      background-position: bottom left;
+    }
+
+    &:after {
+      content: '';
+      padding: 3px;
+      background: url('../images/tooltip-background.png');
+      background-position: bottom right;
+    }
+  }
+}
+
+.tooltip {
+  @include tooltip-base;
+
+  &--inline {
+    display: inline-block;
+  }
+
+  &--fixed {
+    width: 320px;
+
+    .tooltip__inner {
+      width: 100%;
+    }
+
+    .tooltip__body {
+      flex: 1;
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/components/Tooltip.tsx b/src/components/Tooltip.tsx
index 8a7d81a..0a55789 100644
--- a/src/components/Tooltip.tsx
+++ b/src/components/Tooltip.tsx
@@ -1,11 +1,39 @@
 import './Tooltip.scss'
 import React, { FC } from 'react'
+import classNames from 'classnames'
 
 interface Props {
+  title?: string
+  /** Override width of tooltip. Needs `fixed` to be true to have effect. */
+  width?: string
+  /** Fixed width */
+  fixed?: boolean
+  /** Display tooltip inline */
+  inline?: boolean
 }
 
 export const Tooltip: FC<Props> = (props) => {
-  return <div className="tooltip">
-    
+  const { title, children } = props
+
+  const cn = classNames('tooltip', {
+    'tooltip--fixed': props.fixed,
+    'tooltip--inline': props.inline,
+  })
+  
+  const style = {
+    width: props.width
+  }
+
+  return <div className={cn} style={style}>
+    <div className="tooltip__inner">
+      <div className="tooltip__top">
+        <div className="tooltip__body">
+          {title}
+          {children}
+        </div>
+      </div>
+
+      <div className="tooltip__footer" />
+    </div>
   </div>
 }
\ No newline at end of file
diff --git a/src/sass/_config.scss b/src/sass/_config.scss
index e1fb684..0eb1beb 100644
--- a/src/sass/_config.scss
+++ b/src/sass/_config.scss
@@ -11,4 +11,15 @@ $color-yellow: #ffd100;
 $color-green: #1eff00;
 $color-dark-green: #40bf40;
 $color-subtle: #9d9d9d;
-$color-icon-overlay: #6396d6;
\ No newline at end of file
+$color-icon-overlay: #6396d6;
+
+// Class colours
+$color-warrior: #c69b6d;
+$color-paladin: #f48cba;
+$color-hunter: #aad372;
+$color-rogue: #fff468;
+$color-priest: #fff;
+$color-shaman: #2359ff;
+$color-mage: #68ccef;
+$color-warlock: #9382c9;
+$color-druid: #ff7c0a;