迅腾网络>圈子>建站知识> 图片动态缩放代码,css怎么实现图片放大缩小动画

图片动态缩放代码,css怎么实现图片放大缩小动画

热度:1243 / 2022-11-29 / 廊坊网站建设 / 建站知识

示例1:

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<div class="ballon"></div>

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/*css部分*/

   @keyframes scaleDraw {  /*定义关键帧、scaleDrew是需要绑定到选择器的关键帧名称*/

            0%{

                transform: scale(1);  /*开始为原始大小*/

            }

            25%{

                transform: scale(1.1); /*放大1.1倍*/

            }

            50%{

                transform: scale(1);

            }

            75%{

                transform: scale(1.1);

            }

        }

    .ballon{

            width: 150px;

            height: 200px;

            background: url("images/balloon.png");

            background-size: 150px 200px;

            -webkit-animation-name: scaleDraw; /*关键帧名称*/

            -webkit-animation-timing-function: ease-in-out; /*动画的速度曲线*/

            -webkit-animation-iteration-count: infinite;  /*动画播放的次数*/

            -webkit-animation-duration: 5s; /*动画所花费的时间*/

        }

上面的几个属性也可以合在一起写

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animation: scaleDraw 5s ease-in-out infinite;

-webkit-animation: scaleDraw 5s ease-in-out infinite;

效果:

实例2:

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<div class="live">

        <img src="images/live.png" alt="">

        <span></span>

        <span></span>

</div>

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.live{

           position: relative;

           width: 100px;

           height: 100px;

       }

       .live img{

           width: 100px;

           height: 100px;

           z-index: 0;

       }

        @keyframes living {

            0%{

                transform: scale(1);

                opacity: 0.5; 

            }

            50%{

                transform: scale(1.5); 

                opacity: 0;   /*圆形放大的同时,透明度逐渐减小为0*/

            }

            100%{

                transform: scale(1);

                opacity: 0.5;

            }

        }

        .live span{

            position: absolute;

            width: 100px;

            height: 100px;

            left: 0;

            bottom: 0;

            background: #fff;

            border-radius: 50%;

            -webkit-animation: living 3s linear infinite;

            z-index: -1;

        }

        .live span:nth-child(2){

            -webkit-animation-delay: 1.5s; /*第二个span动画延迟1.5秒*/

        }

实质就是就是利用了动画的延迟属性,两层圆的动画相关的属性基本相同,除了最外层的圆多设置了animation-delay属性

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