What are the differences between negative vertical-align values and negative margin-bottom values?-CSS Tutorial-php.cn

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What are the differences between negative vertical-align values and negative margin-bottom values?

青灯夜游

Nov 06, 2020 pm 06:00 PM

css

What are the differences between negative values of vertical-align and negative values of margin-bottom? The following article will introduce to you the difference between negative values of vertical-align and negative values of margin-bottom. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to everyone.

What are the differences between negative vertical-align values and negative margin-bottom values?

Let’s first take a look at the values of vertical-align in W3C:

But it has a numerical value like this It’s rarely mentioned. Let’s look at this piece of code:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
    .test_box {
      width: 45%;
      float: left;
      margin-right: 1%;
      background-color: #f0f3f9;
    }
    .mb-200 {
      margin-bottom: -200px;
    }
    .va-200 {
      vertical-align: -200px;
    }
  </style>
</head>
<body>
<p class="test_box">
  <img  class="mb-200 lazy"  src="/static/imghwm/default1.png"  data-src="http://image.zhangxinxu.com/image/study/s/s128/mm1.jpg"    / alt="What are the differences between negative vertical-align values and negative margin-bottom values?" >张含韵
</p>
<p class="test_box">
  <img  class="va-200 lazy"  src="/static/imghwm/default1.png"  data-src="http://image.zhangxinxu.com/image/study/s/s128/mm1.jpg"    / alt="What are the differences between negative vertical-align values and negative margin-bottom values?" >张含韵
</p>
</body>
</html>

Here I wrote two p’s. They all contain the same img. The box is completely separated from the text flow, and the size is entirely supported by the child elements. What is the display effect?

vertical-align will increase the height of the container, while negative margin-bottom values will decrease it!

For more programming-related knowledge, please visit: Introduction to Programming! !

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