How to use the opacity property of CSS-CSS Tutorial-php.cn

The How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS attribute is used to set the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS of the element. It establishes a 100% opaque state on each element, but it can display the transparency of the elements by changing the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS value. , in this next article we will introduce in detail the usage of the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS attribute in CSS.

How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS

The usage of How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS attribute

is described as follows

How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS:值;

Copy after login

In the value part, you can Specify How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS using a value from 0.0 to 1.0. The larger the number, the higher the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS and the clearer the display. On the contrary, the smaller the number, the lower the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS and the blurry appearance. Additionally, if you enter inherit for value, the value of the parent element is inherited.

Even if you set it outside the range of 0.0 to 1.0, it can be applied within this range (for example: -1 → 0/2 → 1) Set the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS to 0 to make it fully transparent, and disappears from the screen.
When the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS is set to 1, it becomes fully opaque. (Initial value)

Next let’s look at a specific example of the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS attribute

When the value is a decimal point

The code is as follows

HTML code

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <link rel="stylesheet" href="sample.css" type="text/css">
  </head>
  <body>
    <div>
      <p>当值是小数的情况下</p>
    </div>
  </body>
</html>

Copy after login

CSS code

div {background-color:#b0e0e6; }
p {How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS:0.5; }

Copy after login

Here, we enter in the

paragraph of the

area For the text, set the background color to #b0e0e6 and set the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS value of

to 0.5.

The display effect on the browser is as follows:

The How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS of the character part of the paragraph has been changed, and it appears slightly transparent. Additionally, the background color's How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS is not changed since no How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS is set in the

area.

How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS

When the value is 0 or 1

The code is as follows

HTML code

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
  <link rel="stylesheet" href="sample.css" type="text/css">
  </head>
  <body>
    <div>
      <p class="text1">当属性值是0的时候</p>
    </div>
    <div>
      <p class="text2">当属性值是1的时候</p>
    </div>
  </body>
</html>

Copy after login

CSS code

div {background-color:#b0e0e6; }
p.text1 {How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS:0; }
p.text2 {How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS:1; }

Copy after login

The display effect on the browser is as follows

The text on the first line is completely transparent, so it will not be displayed on the page, and the text on the second line Displayed as is since it is completely opaque.
Since 1 is the initial value, if no How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS is specified in the parent element, its How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS is unchanged.

How to use the How to use the opacity property of CSS property of CSS

Let’s take a lookUse the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS attribute to set the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS of the image

Let’s look at the code directly

HTML code

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
  <link rel="stylesheet" href="sample.css" type="text/css">
  </head>
  <body>
    <div class="cover">
      <h2 class="cover-title">
        <span class="inline">
          <i class="fa fa-code fa-l"></i>
          php中文网</span>
      </h2>
      <p class="cover-caption">How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS属性的使用方法</p>
    </div>
  </body>
</html>

Copy after login

CSS code

.cover {
  background-image:url("img/tupian.jpg");
  width: 100%;
  position: relative;
  overflow: hidden;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

Copy after login

The display effect on the browser is as follows

How to use the How to use the opacity property of CSS property of CSS

at When the How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS attribute value is 1, the display of the image will not change, so I won’t go into details here.

When the opaque attribute value is 0.5, the CSS code is as follows

.cover {
  background-image:url("img/tupian.jpg");
  width: 100%;
  position: relative;
  overflow: hidden;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS: 0.5;
}

Copy after login

The effect is as follows

How to use the How to use the How to use the opacity property of CSS property of CSS property of CSS

##When the opaque attribute value is 0.2 , it will become more blurry, and the effect is as follows

How to use the opacity property of CSS

The above is the detailed content of How to use the opacity property of CSS. For more information, please follow other related articles on the PHP Chinese website!

Related labels：

opacity属性

source：php.cn

Previous article：How to use float attribute in CSS Next article：What are the common adaptive layouts in CSS?

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn