CSS3动画之DIY Loading动画

<!-- html代码 总共8个点 --> <div class="point-loading">        <span class="point"></span>        <span class="point"></span>        <span class="point"></span>        <span class="point"></span>        <span class="point"></span>        <span class="point"></span>        <span class="point"></span>        <span class="point"></span>    </div>

/*css样式代码*//*定义动画*/@keyframes pointLoading {    0% {        transform: scale(1);        opacity: 1;    }    100% {        transform: scale(.3);        opacity: 0.5;    }}/*定义样式*/.point-loading {    width: 100px;    height: 100px;    position: relative;    margin: 0 auto;    margin-top: 150px;    margin-bottom: 100px;}.point-loading .point {    width: 20px;    height: 20px;    border-radius: 50%;    background: lightgreen;    position: absolute;    animation-name:pointLoading;   /*绑定动画*/    animation-duration:1s; /*绑定动画完成一个周期所用时间*/    animation-iteration-count:infinite; /*动画播放次数  默认是1，infinite无限次播放*/}/*nth-child:选择器匹配属于其父元素的第 N 个子元素；animation-delay:动画延迟播放*/.point-loading .point:nth-child(1) {    left: 0;    top: 50%;    margin-top: -10px;    animation-delay: 0.13s;}.point-loading .point:nth-child(2) {    left: 14px;    top: 14px;    animation-delay: 0.26s;}.point-loading .point:nth-child(3) {    left: 50%;    top: 0;    margin-left: -10px;    animation-delay: 0.39s;}.point-loading .point:nth-child(4) {    top: 14px;    right: 14px;    animation-delay: 0.52s;}.point-loading .point:nth-child(5) {    right: 0;    top: 50%;    margin-top: -10px;    animation-delay: 0.65s;}.point-loading .point:nth-child(6) {    right: 14px;    bottom: 14px;    animation-delay: 0.78s;}.point-loading .point:nth-child(7) {    bottom: 0;    left: 50%;    margin-left: -10px;    animation-delay: 0.91s;}.point-loading .point:nth-child(8) {    bottom: 14px;    left: 14px;    animation-delay: 1.04s;}

 <!-- html代码 --><div class="loading"></div>

/*css代码*//*首先是定义动画效果*/@keyframes rotateLoading {    from {        transform:rotate(0deg);    }    100% {        transform: rotate(360deg);    }}/*定义基本样式，绑定动画，定义动画属性*/.loading {    margin: 50px auto;    width: 100px;    height: 100px;    border-radius: 50%;    border: 10px solid  rgba(0, 0, 0, 0.2);    border-top-color: #000;    position: relative;    animation-name: rotateLoading;    animation-timing-function: linear;    animation-duration: 1.1s;    animation-iteration-count: infinite;}

<!--html代码 共5个柱状 --> <div class="pillar-loading">        <span class="pillar"></span>        <span class="pillar"></span>        <span class="pillar"></span>        <span class="pillar"></span>        <span class="pillar"></span>    </div>

/*css代码*/@keyframes pillarLoading {    0%,    100% {        background: lightgreen;    }    50% {        transform: scaleY(1.75);        background: lightblue;    }}.pillar-loading {    margin: 150px auto;    width: 60px;    display: flex;    justify-content: space-between;}.pillar-loading .pillar {    width: 8px;    height: 40px;    border-radius: 4px;    background: lightgreen;    animation-name: pillarLoading;    animation-iteration-count: infinite;    animation-duration: 1s;    animation-timing-function: ease;}.pillar-loading .pillar:nth-child(2){    animation-delay: 0.2s;}.pillar-loading .pillar:nth-child(3){    animation-delay: 0.4s;}.pillar-loading .pillar:nth-child(4){    animation-delay: 0.6s;}.pillar-loading .pillar:nth-child(5){    animation-delay: 0.8s;}

 <!-- html代码 --><div class="box">        <div class="circle"></div>    </div>

.box {          width: 600px;          height: 200px;          border: 1px solid #ccc;          background: #fff;          margin: 50px,auto}.circle {            width: 50px;            height: 50px;            background: blue;            border-radius: 50%;            margin: 75px,0;            transition: all 2s   /*2s完成*/}.box:hover .circle {           background: red;           transform: translate(550px,0)   /*沿x轴偏移550px*/}

<!-- html代码 --><a href="https://y.qq.com/n/yqq/album/002JRl3m16wLPL.html" class="playlist-item">        <div class="item-bd">            <img class="item-img" src="http://coding.imweb.io/img/p3/transition-hover.jpg" alt="">            <i class="icon-play"></i>        </div>        <div class="item-ft">            <h3 class="item-tt">漂洋过海来看你 OST 原声辑</h3>            <p class="item-author">严艺丹</p>        </div>    </a>

/*css样式代码*/.playlist-item {    display: block;    margin-top: 100px;    width: 300px;    background: rgba(0, 0, 0, .6);}.playlist-item:hover {    background: #31c27c;}.playlist-item .item-bd {    overflow: hidden;    position: relative;}.playlist-item .item-img {    width: 100%;    transition:all 0.75s;}.playlist-item .icon-play {    position: absolute;    top: 50%;    left: 50%;    transform: translate(-50%, -50%) scale(.7);    width: 70px;    height: 70px;    background: url(http://coding.imweb.io/img/p3/transition-cover_play.png) no-repeat;    opacity: 0;}.playlist-item .item-bd:hover .item-img {    transform:scale(1.1);}.playlist-item .item-bd:hover .icon-play {    opacity: 0.8;    transform: translate(-50%, -50%) scale(1);}.playlist-item .item-ft {    color: #fff;    padding: 15px 10px;    text-align: center;}.playlist-item .item-tt {    font-size: 16px;    position: relative;    display: inline-block;    vertical-align: middle;}.playlist-item .item-tt::after {    content: "...";    width: 18px;    height: 18px;    font-size: 12px;    color: #fff;    border-radius: 50%;    border: 2px solid #fff;    position: absolute;    right: -25px;    top: 50%;    transform: translate(0, -50%);    line-height: 0.6;    box-sizing: border-box;    opacity: 0;    transition:all 0.75s;}.playlist-item .item-author {    color: #999;}.playlist-item:hover .item-author {    color: #c1e9d5;}.playlist-item:hover .item-tt::after {    opacity:1;}