CSS3 method to achieve page loading effect: first create an HTML sample file; then create a div in the body; finally achieve the page loading effect through animation animation and 2D scaling conversion in transform.
The operating environment of this article: Windows7 system, HTML5&&CSS3 version, Dell G3 computer.
We can make the animation of page loading into different shapes. The case we want to share today is to make the animation into a circular shape to load the page. When using animation, we should pay attention to browser compatibility issues
Detailed explanation of knowledge points
(1) animation: Set animation properties
animation-name: Set the keyframe name that needs to be bound to the selector. This example is bound to load
animation-duration: the time it takes to complete the animation, in seconds or milliseconds.
animation-timing-function: animation speed curve.
animation-delay: The delay before the animation starts.
animation-iteration-count: The number of times the animation should be played.
animation-direction: Whether the animation should be played in reverse in turn.
Example: Set the animation name to load, the time required to complete the animation is 1.4s, start and end at low speed, and play in an infinite loop
animation: load 1.4s infinite ease-in-out;
(2) animation-fill-mode attribute
none: Do not change the default behavior.
forwards: When the animation is completed, keep the last attribute value (defined in the last keyframe).
backwards: During the period of time specified by animation-delay, the start property value (defined in the first keyframe) is applied before the animation is displayed.
both: Both forward and backward fill modes are applied.
(3) transform: scale(x,y) 2D scaling transformation.
Complete code
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
.load {
margin:300px auto;
width: 150px;
text-align: center;
}
.load div{
width: 30px;
height: 30px;
background-color:rgb(118,224,250);
border-radius: 100%;
display: inline-block;
-webkit-animation: load 1.4s infinite ease-in-out;
-webkit-animation-fill-mode: both;
}
.load .circle1 {
-webkit-animation-delay: -0.32s;
}
.load .circle2 {
-webkit-animation-delay: -0.16s;
}
@-webkit-keyframes load {
0%, 80%, 100% { -webkit-transform: scale(0.0) }
40% { -webkit-transform: scale(1.0) }
}
</style>
</head>
<body>
<div class="load">
<div class="circle1"></div>
<div class="circle2"></div>
<div class="circle3"></div>
</body>
</html>[Recommended course: CSS3 tutorial】
Rendering
Dynamic rendering
Summary: The above is That’s the entire content of this article. Through the content of this article, I hope you will have a certain understanding of CSS3 animation and be able to create your favorite page loading style.
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