D3 Examples - puntos

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<!DOCTYPE html>
<html>
<head>
<script src="https://d3js.org/d3.v3.min.js"></script>
<meta charset=utf-8 />
<title>puntos</title>
</head>
<body>
  <button id="up" type="button">Up</button>
  <button id="down" type="button">Down</button>
  <button id="left" type="button">Left</button>
  <button id="right" type="button">Right</button>
  <br>
​
  <button id="remove" type="button">remove</button>
  <br>
​
  <button id="red" type="button">red</button>
  <button id="green" type="button">green</button>
  <button id="blue" type="button">blue</button>
  <button id="black" type="button">black</button>
  <br>
  
  radio: 5 <input id="radio" type="range" name="radio" min="5" max="25"> 25<br>
​
  <script src="puntos.js"></script>
​
</body>
</html>
    