回答編集履歴
1
HTML追記
answer
CHANGED
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@@ -1,4 +1,66 @@
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1
1
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```JavaScript
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2
2
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//$nav = $('tr'),
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3
3
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$nav = $('thead'),
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4
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+
```
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5
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+
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6
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-- HTML追記
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7
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```HTML
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8
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<!DOCTYPE html>
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9
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<html>
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10
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<head><meta charset="UTF-8" /><title>title</title>
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11
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<style>
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12
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.is-fixed {
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position: fixed;
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14
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top: 0;
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15
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left: 0;
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16
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z-index: 2;
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width: 100%;
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}
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</style>
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20
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</head>
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<body>
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<table>
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<thead>
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<tr>
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<th>id</th>
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<th>タイトル</th>
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27
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</tr>
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</thead>
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29
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<tbody>
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30
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<tr>
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<td>1</td>
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32
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<td>プログラミング全般</td>
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33
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</tr>
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34
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<tr>
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35
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<td>2</td>
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36
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<td>PHP</td>
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37
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</tr>
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38
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</tbody>
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39
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</table>
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40
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<main style="height:200vh"><p>main</p></main>
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41
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<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
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42
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<script>
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43
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$(function() {
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var $win = $(window),
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45
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$main = $('main'),
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46
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$nav = $('thead'),
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47
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navHeight = $nav.outerHeight(),
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48
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navPos = $nav.offset().top,
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49
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fixedClass = 'is-fixed';
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50
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$win.on('load scroll', function() {
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52
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var value = $(this).scrollTop();
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53
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if ( value > navPos ) {
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54
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$nav.addClass(fixedClass);
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55
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$main.css('margin-top', navHeight);
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56
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console.log("動作せず")
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57
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} else {
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58
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$nav.removeClass(fixedClass);
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59
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$main.css('margin-top', '0');
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60
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}
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61
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});
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62
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});
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63
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</script>
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64
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</body>
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65
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</html>
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4
66
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```
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