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Several methods to achieve preload animation effect in CSS3

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Jun 20, 2018 am 11:29 AM

css3

This article mainly introduces CSS3 animation: 5 examples of preload animation effects. The content is quite good. I will share it with you now and give it as a reference.

Achieve the animation effect as shown in the picture:

Preload animation one: double rotation

A circle rotating in two different directions. We define a CSS code for the speed of the inner ring, that is, the speed of the inner ring is 2 times faster than that of the outer ring.

The implementation is shown in the figure:

html code:

<body style="background: #ffb83c;">
    <p id="preloader-1">
        <span></span>
        <span></span>
    </p>
</body>

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css code:

#preloader-1{
    position: relative;
}
#preloader-1 span{
    position: absolute;
    border:8px solid #fff;
    border-top:8px solid transparent;
    border-radius: 999px;
}
#preloader-1 span:nth-child(1){
    width:80px;
    height: 80px;
    animation: spin-1 2s infinite linear;
}
#preloader-1 span:nth-child(2){
    top:20px;
    left:20px;
    width:40px;
    height: 40px;
    animation: spin-2 1s infinite linear;
}
@keyframes spin-1{
    0%{transform: rotate(360deg); opacity: 1.0;}
    50%{transform: rotate(180deg); opacity: 0.5;}
    100%{transform: rotate(0deg);opacity: 0;}
}
@keyframes spin-2{
    0%{transform: rotate(0deg); opacity: 0.5;}
    50%{transform: rotate(180deg); opacity: 1;}
    100%{transform: rotate(360deg);opacity: 0.5;}
}

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Preload animation two: staggered circle

two The circles move back and forth side by side. Each circle has its own reverse movement animation parameters set.

Effect:

html code:

<body style="background: #4ad3b4;">
    <p id="preloader-2">
        <span></span>
        <span></span>
    </p>
</body>

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css code ：

#preloader-2{
    position: relative;
}
#preloader-2 span{
    position: absolute;
    width:30px;
    height: 30px;
    background: #fff;
    border-radius: 999px;
}
#preloader-2 span:nth-child(1){
    animation: cross-1 1.5s infinite linear;
}
#preloader-2 span:nth-child(2){
    animation: cross-2 1.5s infinite linear;
}
@keyframes cross-1{
    0%{transform: translateX(0); opacity: 0.5;}
    50%{transform: translateX(80px); opacity: 1;}
    100%{transform: translateX(0);opacity: 0.5;}
}
@keyframes cross-2{
    0%{transform: translateX(80px); opacity: 0.5;}
    50%{transform: translateX(0); opacity: 1;}
    100%{transform: translateX(80px);opacity: 0.5;}
}

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Preload animation three: rotating circle

Effect:

html code:

<body style="background: #ab69d9;">
    <p id="preloader-3">
        <span></span>
    </p>
</body>

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css code:

#preloader-3{
    position: relative;
    width:80px;
    height: 80px;
    border:4px solid rgba(255,255,255,.25);
    border-radius: 999px;
     
}
#preloader-3 span{
    position: absolute;
    width:80px;
    height:80px;
    border:4px solid transparent;
    border-top:4px solid #fff;
    border-radius: 999px;
    top:-4px;
    left:-4px;
    animation: rotate 1s infinite linear;
}
@keyframes rotate{
    0%{transform: rotate(0deg);}
    100%{transform: rotate(360deg);}
}

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Preload animation four: jumping circle

This is a Mexican wave pattern animation effect, by setting the delay between different circles Parameters to achieve.

Effect:

html code:

<body style="background: #c1d64a;">
    <p id="preloader-4">
        <span></span>
        <span></span>
        <span></span>
        <span></span>
        <span></span>
    </p>
</body>

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css code ：

#preloader-4{
    position: relative;
}
#preloader-4 span{
    position:absolute;
    width:16px;
    height: 16px;
    border-radius: 999px;
    background: #fff;
    animation: bounce 1s infinite linear;
}
#preloader-4 span:nth-child(1){
    left:0;
    animation-delay: 0s;
}
#preloader-4 span:nth-child(2){
    left:20px;
    animation-delay: 0.25s;
}
#preloader-4 span:nth-child(3){
    left:40px;
    animation-delay: 0.5s;
}
#preloader-4 span:nth-child(4){
    left:60px;
    animation-delay: 0.75s;
}
#preloader-4 span:nth-child(5){
    left:80px;
    animation-delay: 1.0s;
}
@keyframes bounce{
    0%{transform: translateY(0px);opacity: 0.5;}
    50%{transform: translateY(-30px);opacity: 1.0;}
    100%{transform: translateY(0px);opacity: 0.5;}
}

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Preload animation five: Radar circle

A kind of radar radiation effect , set the same fade-in and fade-out effect for three span elements, and then delay each one slightly to achieve it.

Effect:

html code:

<body style="background: #f9553f;">
    <p id="preloader-5">
        <span></span>
        <span></span>
        <span></span>
    </p>
</body>

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css code ：

#preloader-5{
    position: relative;
}
#preloader-5 span{
    position:absolute;
    width:50px;
    height: 50px;
    border:5px solid #fff;
    border-radius: 999px;
    opacity: 0;
    animation: radar 2s infinite linear;
}
#preloader-5 span:nth-child(1){
    animation-delay: 0s;
}
#preloader-5 span:nth-child(2){
     
    animation-delay: 0.66s;
}
#preloader-5 span:nth-child(3){
    animation-delay: 1.33s;
}
 
@keyframes radar{
    0%{transform: scale(0);opacity: 0;}
    25%{transform: scale(0);opacity: 0.5;}
    50%{transform: scale(1);opacity: 1.0;}
    75%{transform: scale(1.5);opacity: 0.5;}
    100%{transform: scale(2);opacity: 0;}
}

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The above is the entire content of this article. I hope it will be helpful to everyone’s study. For more related content, please pay attention to the PHP Chinese website!

Related recommendations:

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The above is the detailed content of Several methods to achieve preload animation effect in CSS3. For more information, please follow other related articles on the PHP Chinese website!

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