So erzielen Sie den Animationseffekt der Wasserwellendiffusion in CSS (reiner Code)

Der Inhalt dieses Artikels befasst sich mit der Realisierung des Animationseffekts der Wassermusterdiffusion in CSS (reiner Code). Ich hoffe, dass er für Sie hilfreich ist.

<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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