Method: 1. Use the "body{animation: name time}" statement to bind animation to the web page element body; 2. Use the "@keyframes name {0%{opacity:0;}}" statement to set The animation keyframe for fading in the web page. The opacity attribute is used to set the transparency of the element.
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
How to achieve the fade-in effect of a web page in css3
In css, you can use the animation attribute and @keyframes rules to implement animation that changes the width of the element Effects, via @keyframes rules, can be animated.
The principle of creating animation is to gradually change one set of CSS styles into another set of styles. You can change this set of CSS styles multiple times during the animation.
Specify the time when the change occurs as a percentage, or through the keywords "from" and "to", which are equivalent to 0% and 100%. 0% is the start time of the animation, 100% is the end time of the animation. For best browser support, you should always define 0% and 100% selectors.
Use the opacity attribute to set the animation action. This property is used to set the transparency of an element.
The syntax format of the animation attribute is as follows:
animation: name duration timing-function delay iteration-count direction;
The example is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>123</title>
<style>
body{
animation:fadenum 10s;
}
@keyframes fadenum{
0%{opacity: 0;}
}
</style>
</head>
<body>
<img src="/static/imghwm/default1.png" data-src="1118.02.png" class="lazy" alt="How to achieve the fade-in effect of web pages in css3" >
网页元素
</body>
</html>Output result:
(Learning video sharing: css video tutorial)
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