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在我们这次的新设计教程中，我将向您展示如何创建纯css3的loading加载动画组件(没有任何图像)。我认为它可以为你减少项目的代码量和额外的图像对你网站的负载。我准备了三种不同风格的加载组件。现在，让我们看看我做的。

css3-loading

step 1. html

你可以在这里看到的三个元素–放置“加载”元素的div。

<div class=main_body>

<div class=element>

<div class=loading1>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

</div>

</div>

<div class=element>

<div class=loading2>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

</div>

</div>

<div class=element>

<div class=loading3>

<div></div>

<div></div>

<div></div>

<div></div>

<div></div>

</div>

</div>

</div>

step 2. css

现在，最有趣的一步，我会给你风格各加载的元素。欢迎来检查的第一个样式：

.loading1 {

height:100px;

position:relative;

width:80px;

}

.loading1 > div {

background-color:#ffffff;

height:30px;

position:absolute;

width:12px;

/* css3 radius */

-moz-border-radius:5px;

-webkit-border-radius:5px;

border-radius:5px;

/* css3 transform - scale */

-webkit-transform:scale(0.4);

-moz-transform:scale(0.4);

-o-transform:scale(0.4);

/* css3 animation */

-webkit-animation-name:loading1;

-webkit-animation-duration:1.04s;

-webkit-animation-iteration-count:infinite;

-webkit-animation-direction:linear;

-moz-animation-name:loading1;

-moz-animation-duration:1.04s;

-moz-animation-iteration-count:infinite;

-moz-animation-direction:linear;

-o-animation-name:loading1;

-o-animation-duration:1.04s;

-o-animation-iteration-count:infinite;

-o-animation-direction:linear;

}

.loading1 > div:nth-child(1) {

left:0;

top:36px;

/* css3 transform - rotate */

-webkit-transform:rotate(-90deg);

-moz-transform:rotate(-90deg);

-o-transform:rotate(-90deg);

/* css3 animation */

-webkit-animation-delay:0.39s;

-moz-animation-delay:0.39s;

-o-animation-delay:0.39s;

}

.loading1 > div:nth-child(2) {

left:10px;

top:13px;

/* css3 transform - rotate */

-webkit-transform:rotate(-45deg);

-moz-transform:rotate(-45deg);

-o-transform:rotate(-45deg);

/* css3 animation */

-webkit-animation-delay:0.52s;

-moz-animation-delay:0.52s;

-o-animation-delay:0.52s;

}

.loading1 > div:nth-child(3) {

left:34px;

top:4px;

/* css3 transform - rotate */

-webkit-transform:rotate(0deg);

-moz-transform:rotate(0deg);

-o-transform:rotate(0deg);

/* css3 animation */

-webkit-animation-delay:0.65s;

-moz-animation-delay:0.65s;

-o-animation-delay:0.65s;

}

.loading1 > div:nth-child(4) {

right:10px;

top:13px;

/* css3 transform - rotate */

-webkit-transform:rotate(45deg);

-moz-transform:rotate(45deg);

-o-transform:rotate(45deg);

/* css3 animation */

-webkit-animation-delay:0.78s;

-moz-animation-delay:0.78s;

-o-animation-delay:0.78s;

}

.loading1 > div:nth-child(5) {

right:0;

top:36px;

/* css3 transform - rotate */

-webkit-transform:rotate(90deg);

-moz-transform:rotate(90deg);

-o-transform:rotate(90deg);

/* css3 animation */

-webkit-animation-delay:0.91s;

-moz-animation-delay:0.91s;

-o-animation-delay:0.91s;

}

.loading1 > div:nth-child(6) {

right:10px;

bottom:9px;

/* css3 transform - rotate */

-webkit-transform:rotate(135deg);

-moz-transform:rotate(135deg);

-o-transform:rotate(135deg);

/* css3 animation */

-webkit-animation-delay:1.04s;

-moz-animation-delay:1.04s;

-o-animation-delay:1.04s;

}

.loading1 > div:nth-child(7) {

bottom:0;

left:34px;

/* css3 transform - rotate */

-webkit-transform:rotate(180deg);

-moz-transform:rotate(180deg);

-o-transform:rotate(180deg);

/* css3 animation */

-webkit-animation-delay:1.17s;

-moz-animation-delay:1.17s;

-o-animation-delay:1.17s;

}

.loading1 > div:nth-child(8) {

left:10px;

bottom:9px;

/* css3 transform - rotate */

-webkit-transform:rotate(-135deg);

-moz-transform:rotate(-135deg);

-o-transform:rotate(-135deg);

/* css3 animation */

-webkit-animation-delay:1.3s;

-moz-animation-delay:1.3s;

-o-animation-delay:1.3s;

}

/* css3 keyframes - loading1 */

@-webkit-keyframes loading1 {

0%{ background-color:#000000 }

100%{ background-color:#ffffff }

}

@-moz-keyframes loading1 {

0%{ background-color:#000000 }

100%{ background-color:#ffffff }

}

@-o-keyframes loading1 {

0%{ background-color:#000000 }

100%{ background-color:#ffffff }

}

你可以看到–我用css3动画关键帧，每一步(点)是彼此分离的延迟。现在，请查看我们的第二负载的风格元素：

.loading2 {

height:140px;

position:relative;

width:140px;

/* css3 transform - scale */

-webkit-transform:scale(0.6);

-moz-transform:scale(0.6);

-o-transform:scale(0.6);

}

.loading2 > div {

background-color:#ffffff;

height:25px;

position:absolute;

width:25px;

/* css3 radius */

-moz-border-radius:15px;

-webkit-border-radius:15px;

border-radius:15px;

/* css3 animation */

-webkit-animation-name:loading2;

-webkit-animation-duration:1.04s;

-webkit-animation-iteration-count:infinite;

-webkit-animation-direction:linear;

-moz-animation-name:loading2;

-moz-animation-duration:1.04s;

-moz-animation-iteration-count:infinite;

-moz-animation-direction:linear;

-o-animation-name:loading2;

-o-animation-duration:1.04s;

-o-animation-iteration-count:infinite;

-o-animation-direction:linear;

}

.loading2 > div:nth-child(1) {

left:0;

top:57px;

/* css3 animation */

-webkit-animation-delay:0.39s;

-moz-animation-delay:0.39s;

-o-animation-delay:0.39s;

}

.loading2 > div:nth-child(2) {

left:17px;

top:17px;

/* css3 animation */

-webkit-animation-delay:0.52s;

-moz-animation-delay:0.52s;

-o-animation-delay:0.52s;

}

.loading2 > div:nth-child(3) {

left:57px;

top:0;

/* css3 animation */

-webkit-animation-delay:0.65s;

-moz-animation-delay:0.65s;

-o-animation-delay:0.65s;

}

.loading2 > div:nth-child(4) {

right:17px;

top:17px;

/* css3 animation */

-webkit-animation-delay:0.78s;

-moz-animation-delay:0.78s;

-o-animation-delay:0.78s;

}

.loading2 > div:nth-child(5) {

right:0;

top:57px;

/* css3 animation */

-webkit-animation-delay:0.91s;

-moz-animation-delay:0.91s;

-o-animation-delay:0.91s;

}

.loading2 > div:nth-child(6) {

right:17px;

bottom:17px;

/* css3 animation */

-webkit-animation-delay:1.04s;

-moz-animation-delay:1.04s;

-o-animation-delay:1.04s;

}

.loading2 > div:nth-child(7) {

left:57px;

bottom:0;

/* css3 animation */

-webkit-animation-delay:1.17s;

-moz-animation-delay:1.17s;

-o-animation-delay:1.17s;

}

.loading2 > div:nth-child(8) {

left:17px;

bottom:17px;

/* css3 animation */

-webkit-animation-delay:1.3s;

-moz-animation-delay:1.3s;

-o-animation-delay:1.3s;

}

/* css3 keyframes - loading2 */

@-webkit-keyframes loading2 {

0%{ background-color:#000000 }

100%{ background-color:#ffffff }

}

@-moz-keyframes loading2 {

0%{ background-color:#000000 }

100%{ background-color:#ffffff }

}

@-o-keyframes loading2 {

0%{ background-color:#000000 }

100%{ background-color:#ffffff }

}

我在这里使用相同的理念作为第一要素，但是，稍微改变风格。最后–第三”加载元件：

.loading3 > div {

background-color:#ffffff;

border:1px solid #000000;

float:left;

height:114px;

margin-left:5px;

width:30px;

opacity:0.1;

/* css3 transform - scale */

-webkit-transform:scale(0.8);

-moz-transform:scale(0.8);

-o-transform:scale(0.8);

/* css3 animation */

-webkit-animation-name:loading3;

-webkit-animation-duration:1.2s;

-webkit-animation-iteration-count:infinite;

-webkit-animation-direction:linear;

-moz-animation-name:loading3;

-moz-animation-duration:1.2s;

-moz-animation-iteration-count:infinite;

-moz-animation-direction:linear;

-o-animation-name:loading3;

-o-animation-duration:1.2s;

-o-animation-iteration-count:infinite;

-o-animation-direction:linear;

}

.loading3 > div:nth-child(1) {

/* css3 animation */

-webkit-animation-delay:0.24s;

-moz-animation-delay:0.24s;

-o-animation-delay:0.24s;

}

.loading3 > div:nth-child(2) {

/* css3 animation */

-webkit-animation-delay:0.48s;

-moz-animation-delay:0.48s;

-o-animation-delay:0.48s;

}

.loading3 > div:nth-child(3) {

/* css3 animation */

-webkit-animation-delay:0.72s;

-moz-animation-delay:0.72s;

-o-animation-delay:0.72s;

}

.loading3 > div:nth-child(4) {

/* css3 animation */

-webkit-animation-delay:0.96s;

-moz-animation-delay:0.96s;

-o-animation-delay:0.96s;

}

.loading3 > div:nth-child(5) {

/* css3 animation */

-webkit-animation-delay:1.2s;

-moz-animation-delay:1.2s;

-o-animation-delay:1.2s;

}

/* css3 keyframes - loading3 */

@-webkit-keyframes loading3 {

0% {

-webkit-transform:scale(1.2);

opacity:1;

}

100% {

-webkit-transform:scale(0.7);

opacity:0.1;

}

}

@-moz-keyframes loading3 {

0% {

-moz-transform:scale(1.2);

opacity:1;

}

100% {

-moz-transform:scale(0.7);

opacity:0.1;

}

}

@-o-keyframes loading3 {

0% {

-o-transform:scale(1.2);

opacity:1;

}

100% {

-o-transform:scale(0.7);

opacity:0.1;

}

}

这就是今天的。我们刚刚创建的三种不同的“加载”元素。我希望一切都对你很容易和你一样的结果。祝你好运!

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