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4ae129054e
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476 changed files with 3370 additions and 532 deletions
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form {
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background-color: green;
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position: relative;
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width: 150px;
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height: 150px;
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text-align: center;
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cursor: pointer;
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}
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div {
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background-color: blue;
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position: absolute;
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top: 25px;
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left: 25px;
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width: 100px;
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height: 100px;
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}
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p {
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background-color: red;
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position: absolute;
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top: 25px;
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left: 25px;
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width: 50px;
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height: 50px;
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line-height: 50px;
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margin: 0;
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}
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body {
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line-height: 25px;
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font-size: 16px;
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}
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<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8">
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<link rel="stylesheet" href="example.css">
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</head>
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<body>
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A click shows both <code>event.target</code> and <code>this</code> to compare:
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<form id="form">FORM
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<div>DIV
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<p>P</p>
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</div>
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</form>
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<script src="script.js"></script>
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</body>
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</html>
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let form = document.querySelector('form');
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form.onclick = function(event) {
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event.target.style.backgroundColor = 'yellow';
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alert("target = " + event.target.tagName + ", this=" + this.tagName);
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event.target.style.backgroundColor = '';
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};
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