Method: 1. Use the "element {animation: name time}" statement to bind animation to the element; 2. Use "@keyframes name {50%{transform:scale(left and right scaling multiple, 1);} }" statement, set the animation action of the element's expansion and contraction, and achieve the left and right expansion and contraction animation effect of the element.
The operating environment of this tutorial: Windows 10 system, CSS3&&HTML5 version, Dell G3 computer.
How to achieve the left and right scaling animation effect in css3
In css, if you want to achieve the left and right scaling animation, you need to bind the image element through the animation attribute. Set the animation and specify the animation time.
The keyframes rules are then used to specify the action of element animation. The specific action is based on the transform attribute and the scale function to scale the element.
The example is as follows:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
div{
width:100px;
height:100px;
margin:0 auto;
background-color:pink;
animation:fadenum 5s;
}
@keyframes fadenum{
50%{transform:scale(3,1);}
}
</style>
</head>
<body>
<div></div>
</body>
</html>Output result:
(Learning video sharing: css video tutorial)
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