css如何实现水纹扩散的动画效果(纯代码)
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<div class="main clearfix"> <!--3*70=210 2*50=100 310--> <div class="circle"> <!--<div class="box"></div>--> <div class="box-a"></div> <div class="box-b"></div> <div class="box-c"></div> <div class="box-icon icon-a icon-a-1"></div> </div> <!--hr正常灰色 hr-x出错 hr-r正确--> <div class="hr hr-x"></div> <div class="circle"> <!--<div class="box"></div>--> <div class="box-a"></div> <div class="box-b"></div> <div class="box-c"></div> <div class="box-icon icon-b icon-b-2"></div> </div> <div class="hr hr-r"></div> <div class="circle"> <!--<div class="box"></div>--> <div class="box-a"></div> <div class="box-b"></div> <div class="box-c"></div> <div class="box-icon icon-c icon-c-3"></div> </div> </div>
css:
.main{ position: relative; height:70px; width: 310px; margin: 0 auto; background-color: #f34147; } .circle{ position: relative; float: left; height:70px; width: 70px; } /*线*/ .hr{ position: relative; float: left; width: 50px; height:70px; background: url("../images/hr_1.png") no-repeat center center; background-size: auto 18px; } .hr-x{ background: url("../images/hr_2.png") no-repeat center center; background-size: auto 18px; } .hr-r{ background: url("../images/hr_3.png") no-repeat center center; background-size: auto 18px; } /*按钮 大:47 小:39*/ .box-icon{ position: absolute; z-index: 9999; top:0; right:0; left:0;; bottom: 0; width: 70px; height: 70px; } /*小 不亮*/ .icon-a{ background: url("../images/icon_a_3.png") no-repeat center center; background-size:39px 39px; } .icon-b{ background: url("../images/icon_b_3.png") no-repeat center center; background-size:39px 39px; } .icon-c{ background: url("../images/icon_c_3.png") no-repeat center center; background-size:39px 39px; } /*小 亮*/ .icon-a-1{ background: url("../images/icon_a_2.png") no-repeat center center; background-size:39px 39px; } .icon-b-1{ background: url("../images/icon_b_2.png") no-repeat center center; background-size:39px 39px; } .icon-c-1{ background: url("../images/icon_c_2.png") no-repeat center center; background-size:39px 39px; } /*大 亮*/ .icon-a-2{ background: url("../images/icon_a_1.png") no-repeat center center; background-size:47px 47px; } .icon-b-2{ background: url("../images/icon_b_1.png") no-repeat center center; background-size:47px 47px; } .icon-c-2{ background: url("../images/icon_c_1.png") no-repeat center center; background-size:47px 47px; } /*动效*/ @keyframes warn { 0% { transform: scale(0.6); opacity: 0; } 25% { transform: scale(0.6); opacity: 0.8; } /*50% {*/ /*transform: scale(0.8);*/ /*opacity: 0.4;*/ /*}*/ /*75% {*/ /*transform: scale(0.9);*/ /*opacity: 0.3;*/ /*}*/ 100% { transform: scale(1); opacity: 0.1; } } @-webkit-keyframes warn { 0% { -webkit-transform: scale(0); opacity: 0; } 25% { -webkit-transform: scale(0.6); opacity: 0.8; } /*50% {*/ /*-webkit-transform: scale(0.1);*/ /*opacity: 0.3;*/ /*}*/ /*75% {*/ /*-webkit-transform: scale(0.5);*/ /*opacity: 0.5;*/ /*}*/ 100% { -webkit-transform: scale(1); opacity: 0.1; } } /* 70*70的容器*/ .box{ position: absolute; width: 70px; height: 70px; border: 6px solid rgba(225,225,225,0.5); -webkit-border-radius:70px; -moz-border-radius: 70px; border-radius: 70px; z-index: 1; opacity: 0; -webkit-animation: warn 4s ease-out infinite; -moz-animation: warn 4s ease-out infinite; animation: warn 4s ease-out infinite; } .box-a{ position: absolute; width: 70px; height: 70px; border: 6px solid rgba(225,225,225,0.5); -webkit-border-radius:70px; -moz-border-radius: 70px; border-radius: 70px; z-index: 1; opacity: 0; -webkit-animation: warn 4s ease-out infinite; -moz-animation: warn 4s ease-out infinite; animation: warn 4s ease-out infinite; animation-delay:1s; -webkit-animation-delay:1s; /* Safari 和 Chrome */ } .box-b{ position: absolute; width: 70px; height: 70px; border: 6px solid rgba(225,225,225,0.5); -webkit-border-radius:70px; -moz-border-radius: 70px; border-radius: 70px; z-index: 1; opacity: 0; -webkit-animation: warn 4s ease-out infinite; -moz-animation: warn 4s ease-out infinite; animation: warn 4s ease-out infinite; animation-delay:2s; -webkit-animation-delay:2s; /* Safari 和 Chrome */ } .box-c{ position: absolute; width: 70px; height: 70px; border: 6px solid rgba(225,225,225,0.5); -webkit-border-radius:70px; -moz-border-radius: 70px; border-radius: 70px; z-index: 1; opacity: 0; -webkit-animation: warn 4s ease-out infinite; -moz-animation: warn 4s ease-out infinite; animation: warn 4s ease-out infinite; animation-delay:3s; -webkit-animation-delay:3s; /* Safari 和 Chrome */ }
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