JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.
Any URL's added here will be added as <script>
s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.
You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.
If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.
You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.
HTML Settings
Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.
<div class="Wrapper">
<h2>Start typing!</h2>
<h1>Keyboard easter egg<small>from <a href="https://muffinman.io">my blog</a></small></h1>
<p>
Works only on devices with keyboard.<br/>
Read how it works in <a href="https://muffinman.io/javascript-keyboard-easter-egg">this blog post</a>.
</p>
<svg class="Keyboard" viewBox="0 0 609 242" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g stroke="none" stroke-width="1" fill="#FFFFFF" fill-rule="evenodd">
<rect class="Key" id="Key--q" x="52" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--w" x="95" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--e" x="138" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--r" x="182" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--t" x="225" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--y" x="269" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--u" x="312" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--i" x="356" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--o" x="399" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--p" x="442" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--squareBracketLeft" x="486" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--squareBracketRight" x="529" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--backslash" x="573" y="70" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--tilde" x="1" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--1" x="44" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--2" x="88" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--3" x="131" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--4" x="175" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--5" x="218" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--6" x="262" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--7" x="305" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--8" x="348" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--9" x="392" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--0" x="435" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--minus" x="479" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--equals" x="522" y="25" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--esc" x="1" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f1" x="45" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f2" x="89" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f3" x="133" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f4" x="176" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f5" x="221" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f6" x="264" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f7" x="308" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f8" x="352" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f9" x="396" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f10" x="440" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f11" x="484" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--f12" x="528" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--power" x="572" y="0" width="37" height="18" rx="6"></rect>
<rect class="Key" id="Key--delete" x="566" y="25" width="43" height="37" rx="6"></rect>
<rect class="Key" id="Key--a" x="65" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--s" x="109" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--d" x="152" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--f" x="195" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--g" x="239" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--h" x="282" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--j" x="326" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--k" x="369" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--l" x="413" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--semicolon" x="456" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--apostrophe" x="500" y="114" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--z" x="88" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--x" x="131" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--c" x="175" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--v" x="218" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--b" x="262" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--n" x="305" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--m" x="348" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--comma" x="392" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--dot" x="435" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--slash" x="479" y="158" width="36" height="37" rx="6"></rect>
<rect class="Key" id="Key--fn" x="0" y="203" width="33" height="37" rx="6"></rect>
<rect class="Key" id="Key--controlLeft" x="41" y="203" width="33" height="37" rx="6"></rect>
<rect class="Key" id="Key--altLeft" x="81" y="203" width="33" height="37" rx="6"></rect>
<rect class="Key" id="Key--altRight" x="444" y="203" width="33" height="37" rx="6"></rect>
<rect class="Key" id="Key--arrowLeft" x="485" y="221" width="37" height="19" rx="6"></rect>
<g class="Key" id="Key--arrowUp" transform="translate(529.000000, 203.000000)">
<path d="M37,11.5 L37,6 C37,2.6862915 34.3137085,-6.08718376e-16 31,0 L6,0 L6,0 C2.6862915,6.08718376e-16 -4.05812251e-16,2.6862915 0,6 L0,6 L0,11.5 L0,19 L37,19 L37,11.5 Z"></path>
</g>
<g class="Key" id="Key--arrowDown" transform="translate(529.000000, 222.000000)">
<path d="M37,7.5 L37,13 C37,16.3137085 34.3137085,19 31,19 L6,19 C2.6862915,19 4.05812251e-16,16.3137085 0,13 L0,7.5 L0,0 L37,0 L37,7.5 Z"></path>
</g>
<rect class="Key" id="Key--arrowRight" x="573" y="221" width="36" height="19" rx="6"></rect>
<rect class="Key" id="Key--enter" x="543" y="114" width="66" height="37" rx="6"></rect>
<rect class="Key" id="Key--cmdLeft" x="122" y="203" width="45" height="37" rx="6"></rect>
<rect class="Key" id="Key--cmdRight" x="392" y="203" width="45" height="37" rx="6"></rect>
<rect class="Key" id="Key--shiftRight" x="522" y="158" width="87" height="37" rx="6"></rect>
<rect class="Key" id="Key--tab" x="0" y="70" width="44" height="37" rx="6"></rect>
<rect class="Key" id="Key--capsLock" x="0" y="114" width="57" height="37" rx="6"></rect>
<rect class="Key" id="Key--shiftLeft" x="0" y="158" width="80" height="37" rx="6"></rect>
<rect class="Key" id="Key--space" x="175" y="203" width="210" height="37" rx="6"></rect>
</g>
</svg>
</div>
body {
padding: 30px 20px;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
font-size: 16px;
background-color: fafafb;
color: #222;
text-align: center;
}
h1 {
font-size: 24px;
margin: 10px 0;
}
small {
display: block;
font-size: 14px;
color: #888;
}
h2 {
color: #e74c3c;
font-weight: bold;
}
a {
color: #555;
transition: all 0.25s;
}
a:hover {
color: #3498db;
}
p {
line-height: 1.3em;
margin-bottom: 20px;
color: #888;
}
.Wrapper {
max-width: 800px;
margin: 0 auto;
}
.Keyboard {
width: 100%;
}
.Key {
fill: #eee;
stroke: none;
}
.Key--active:nth-child(7n + 1) {
fill: #1abc9c;
}
.Key--active:nth-child(7n + 2) {
fill: #2ecc71;
}
.Key--active:nth-child(7n + 3) {
fill: #3498db;
}
.Key--active:nth-child(7n + 4) {
fill: #9b59b6;
}
.Key--active:nth-child(7n + 5) {
fill: #f1c40f;
}
.Key--active:nth-child(7n + 6) {
fill: #e67e22;
}
.Key--active:nth-child(7n + 7) {
fill: #e74c3c;
}
const keyCodes = {
// 0: {
// 'Key has no keycode',
// id: '',
// },
// 3: {
// 'break',
// id: '',
// },
8: {
// 'backspace / delete',
id: 'delete',
},
9: {
id: 'tab',
},
// 12: {
// 'clear',
// id: '',
// },
13: {
id: 'enter',
},
16: {
id: 'shift',
checkSide: true,
// DOM_KEY_LOCATION_LEFT
// DOM_KEY_LOCATION_RIGHT
},
17: {
id: 'control',
checkSide: true,
},
18: {
id: 'alt',
checkSide: true,
},
// 19: {
// 'pause/break',
// id: '',
// },
20: {
id: 'capsLock',
},
// 21: {
// 'hangul',
// id: '',
// },
// 25: {
// 'hanja',
// id: '',
// },
27: {
id: 'esc',
},
// 28: {
// 'conversion',
// id: '',
// },
// 29: {
// 'non-conversion',
// id: '',
// },
32: {
id: 'space',
},
// 33: {
// 'page up',
// id: '',
// },
// 34: {
// 'page down',
// id: '',
// },
// 35: {
// 'end',
// id: '',
// },
// 36: {
// 'home',
// id: '',
// },
37: {
id: 'arrowLeft',
},
38: {
id: 'arrowUp',
},
39: {
id: 'arrowRight',
},
40: {
id: 'arrowDown',
},
// 41: {
// 'select',
// id: '',
// },
// 42: {
// 'print',
// id: '',
// },
// 43: {
// 'execute',
// id: '',
// },
// 44: {
// 'print Screen',
// id: '',
// },
// 45: {
// 'insert',
// id: '',
// },
46: {
id: 'delete',
},
// 47: {
// 'help',
// id: '',
// },
48: {
id: '0',
},
49: {
id: '1',
},
50: {
id: '2',
},
51: {
id: '3',
},
52: {
id: '4',
},
53: {
id: '5',
},
54: {
id: '6',
},
55: {
id: '7',
},
56: {
id: '8',
},
57: {
id: '9',
},
58: {
// ':',
id: 'semicolon',
},
59: {
// 'semicolon (firefox), equals',
id: 'equals',
},
60: {
// '<',
id: 'comma',
},
61: {
// 'equals (firefox)',
id: 'equals',
},
// 63: {
// 'ß',
// id: '',
// },
64: {
// '@ (firefox)',
id: '2',
},
65: {
id: 'a',
},
66: {
id: 'b',
},
67: {
id: 'c',
},
68: {
id: 'd',
},
69: {
id: 'e',
},
70: {
id: 'f',
},
71: {
id: 'g',
},
72: {
id: 'h',
},
73: {
id: 'i',
},
74: {
id: 'j',
},
75: {
id: 'k',
},
76: {
id: 'l',
},
77: {
id: 'm',
},
78: {
id: 'n',
},
79: {
id: 'o',
},
80: {
id: 'p',
},
81: {
id: 'q',
},
82: {
id: 'r',
},
83: {
id: 's',
},
84: {
id: 't',
},
85: {
id: 'u',
},
86: {
id: 'v',
},
87: {
id: 'w',
},
88: {
id: 'x',
},
89: {
id: 'y',
},
90: {
id: 'z',
},
91: {
// 'Windows Key / Left ⌘ / Chromebook Search key',
id: 'cmdLeft',
},
92: {
// 'right window key',
id: 'cmdRight',
},
93: {
// 'Windows Menu / Right ⌘',
id: 'cmdRight',
},
// 95: {
// '// sleep',
// id: '',
// },
96: {
// 'numpad 0',
id: '0',
},
97: {
// 'numpad 1',
id: '1',
},
98: {
// 'numpad 2',
id: '2',
},
99: {
// 'numpad 3',
id: '3',
},
100: {
// 'numpad 4',
id: '4',
},
101: {
// 'numpad 5',
id: '5',
},
102: {
// 'numpad 6',
id: '6',
},
103: {
// 'numpad 7',
id: '7',
},
104: {
// 'numpad 8',
id: '8',
},
105: {
// 'numpad 9',
id: '9',
},
106: {
// 'multiply',
id: '8',
},
107: {
// 'add',
id: 'equals',
},
108: {
// 'numpad period (firefox)',
id: 'dot',
},
109: {
// 'subtract',
id: 'minus',
},
110: {
// 'decimal point',
id: 'dot',
},
111: {
// 'divide',
id: 'slash',
},
112: {
id: 'f1',
},
113: {
id: 'f2',
},
114: {
id: 'f3',
},
115: {
id: 'f4',
},
116: {
id: 'f5',
},
117: {
id: 'f6',
},
118: {
id: 'f7',
},
119: {
id: 'f8',
},
120: {
id: 'f9',
},
121: {
id: 'f10',
},
122: {
id: 'f11',
},
123: {
id: 'f12',
},
124: {
id: 'f13',
},
125: {
id: 'f14',
},
126: {
id: 'f15',
},
127: {
id: 'f16',
},
128: {
id: 'f17',
},
129: {
id: 'f18',
},
130: {
id: 'f19',
},
131: {
id: 'f20',
},
132: {
id: 'f21',
},
133: {
id: 'f22',
},
134: {
id: 'f23',
},
135: {
id: 'f24',
},
// 144: {
// 'num lock',
// id: '',
// },
// 145: {
// 'scroll lock',
// id: '',
// },
160: {
// '^',
id: '6',
},
161: {
// '!',
id: '1',
},
163: {
// '#',
id: '3',
},
164: {
// '$',
id: '4',
},
165: {
// 'ù',
id: 'u',
},
// 166: {
// 'page backward',
// id: '',
// },
// 167: {
// 'page forward',
// id: '',
// },
168: {
// 'refresh',
id: 'f5',
},
169: {
// 'closing paren (AZERTY)',
id: '0',
},
170: {
// '*',
id: '8',
},
171: {
// '~ + * key',
id: 'tilde',
},
// 172: {
// 'home key',
// id: '',
// },
173: {
// 'minus (firefox), mute/unmute',
id: 'minus',
},
174: {
// 'decrease volume level',
id: 'f10',
},
175: {
// 'increase volume level',
id: 'f11',
},
// 176: {
// 'next',
// id: '',
// },
// 177: {
// 'previous',
// id: '',
// },
// 178: {
// 'stop',
// id: '',
// },
179: {
// 'play/pause',
id: 'f8',
},
// 180: {
// 'e-mail',
// id: '',
// },
181: {
// 'mute/unmute (firefox)',
id: 'f10',
},
182: {
// 'decrease volume level (firefox)',
id: 'f11',
},
183: {
// 'increase volume level (firefox)',
id: 'f12',
},
186: {
// 'semi-colon / ñ',
id: 'semicolon',
},
187: {
// 'equal sign',
id: 'equals',
},
188: {
// 'comma',
id: 'comma',
},
189: {
// 'dash',
id: 'minus',
},
190: {
// 'period',
id: 'dot',
},
191: {
// 'forward slash / ç',
id: 'slash',
},
192: {
// 'grave accent / ñ / æ / ö',
id: 'tilde',
},
193: {
// '?, / or °',
id: 'slash',
},
194: {
// 'numpad period (chrome)',
id: 'dot',
},
219: {
// 'open bracket',
id: 'squareBracketLeft',
},
220: {
// 'back slash',
id: 'backslash',
},
221: {
// 'close bracket / å',
id: 'squareBracketRight',
},
222: {
// 'single quote / ø / ä',
id: 'apostrophe',
},
223: {
// '`',
id: 'tilde',
},
224: {
// 'left or right ⌘ key (firefox)',
id: 'cmd',
checkSide: true,
},
225: {
// 'altgr',
id: 'altRight',
},
// 226: {
// 'left back slash',
// id: '',
// },
// 230: {
// 'GNOME Compose Key',
// id: '',
// },
231: {
// 'ç',
id: 'c',
},
// 233: {
// 'XF86Forward',
// id: '',
// },
// 234: {
// 'XF86Back',
// id: '',
// },
// 240: {
// 'alphanumeric',
// id: '',
// },
// 242: {
// 'hiragana/katakana',
// id: '',
// },
// 243: {
// 'half-width/full-width',
// id: '',
// },
// 244: {
// 'kanji',
// id: '',
// },
// 255: {
// 'toggle touchpad',
// id: '',
// },
};
function getKeyElement(e) {
const key = keyCodes[e.keyCode];
if (key && key.id) {
let keySelector = `#Key--${ key.id }`;
if (key.checkSide && KeyboardEvent) {
if (e.location === KeyboardEvent.DOM_KEY_LOCATION_LEFT) {
keySelector += 'Left';
} else if (e.location === KeyboardEvent.DOM_KEY_LOCATION_RIGHT) {
keySelector += 'Right';
}
}
const keyElement = document.querySelector(keySelector);
return keyElement;
}
}
document.addEventListener('keydown', function(e) {
const keyElement = getKeyElement(e);
if (keyElement) {
keyElement.setAttribute('class', 'Key Key--active');
}
});
document.addEventListener('keyup', function(e) {
const keyElement = getKeyElement(e);
if (keyElement) {
keyElement.setAttribute('class', 'Key');
}
});
function removeActiveKeyClass() {
const keyElements = document.querySelectorAll('.Key--active');
for (let i = 0; i < keyElements.length; i++) {
keyElements[i].setAttribute('class', 'Key');
}
}
window.addEventListener('blur', removeActiveKeyClass);
Also see: Tab Triggers