尝试一下: 旧版HTML来设置背景方式 - 在线编辑器

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
</head>
<body bgcolor="yellow">
  <h2>This is a heading</h2>
  <p>This is a paragraph.</p>
  <p>The old bgcolor attribute only works on the body element.</p>
  <p>For future proof HTML, use styles instead:</p>
</body>

</html>
​x
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
</head>
<body bgcolor="yellow">
  <h2>This is a heading</h2>
  <p>This is a paragraph.</p>
  <p>The old bgcolor attribute only works on the body element.</p>
  <p>For future proof HTML, use styles instead:</p>
</body>
​
</html>