在我們這次的新設(shè)計(jì)教程中，我將向您展示如何創(chuàng)建純css3的loading加載動(dòng)畫組件(沒有任何圖像)。我認(rèn)為它可以為你減少項(xiàng)目的代碼量和額外的圖像對(duì)你網(wǎng)站的負(fù)載。我準(zhǔn)備了三種不同風(fēng)格的加載組件?，F(xiàn)在，讓我們看看我做的。
    css3-loading
    step 1. html
    你可以在這里看到的三個(gè)元素–放置“加載”元素的div。
    代碼如下:
    <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
    現(xiàn)在，最有趣的一步，我會(huì)給你風(fēng)格各加載的元素。歡迎來檢查的第一個(gè)樣式：
    代碼如下:
    .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動(dòng)畫關(guān)鍵幀，每一步(點(diǎn))是彼此分離的延遲?，F(xiàn)在，請(qǐng)查看我們的第二負(fù)載的風(fēng)格元素：
    代碼如下:
    .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 }
    }
    我在這里使用相同的理念作為第一要素，但是，稍微改變風(fēng)格。最后–第三”加載元件：
    代碼如下:
    .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;
    }
    }
    這就是今天的。我們剛剛創(chuàng)建的三種不同的“加載”元素。我希望一切都對(duì)你很容易和你一樣的結(jié)果。祝你好運(yùn)!