Why can't I nullify the style of TR

2019-09-20 09:16发布

The TR has an initial style I want to set to "". I tried to do it with cssText property but it doesn't work (must also work with IE8)

<html>
<head>
  <style>
    tr.test {background-color:#000000;margin:0;border:0;padding:0;}
  </style>

</head>
<body>
<table>
  <tbody>
    <tr  style="BACKGROUND-COLOR: silver; FONT-WEIGHT: bold">
    <td>test</td>
    </tr>
  </tbody>

</table>

<script>
_table = document.getElementsByTagName("table")[0];
_tbody = _table.getElementsByTagName("tbody")[0];
_tr = _tbody.getElementsByTagName("tr")[0];
_tr.cssText = "";
_tr.className="test";
</script>

标签： javascript html

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Why can't I nullify the style of TR

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