About Loading animation, we have shared a lot before, most of which are implemented in pure CSS3. This time I bring you a loading animation based on the square flip effect implemented by pure CSS3. Several small squares form an array, and then each flip in the specified direction, so that the animation effect of Loading loading is formed after the loop.
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<div class="loader"> <div class="l_main"> <div class="l_square"><span></span><span></span><span></span></div> <div class="l_square"><span></span><span></span><span></span></div> <div class="l_square"><span></span><span></span><span></span></div> <div class="l_square"><span></span><span></span><span></span></div> </div> </div>
body,html{width:100%;}
body{margin:0;background:#FA3663}
.loader{height:600px;width:100%}
.loader .l_main{position:absolute;top:50%;left:50%;width:172px;height:128px;margin:0;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%)}
@media (max-width:550px){.loader{-webkit-transform:scale(0.75);transform:scale(0.75)}}
@media (max-width:440px){.loader{-webkit-transform:scale(0.5);transform:scale(0.5)}}
.l_square{position:relative}
.l_square:nth-child(1){margin-left:0px}
.l_square:nth-child(2){margin-left:44px}
.l_square:nth-child(3){margin-left:88px}
.l_square:nth-child(4){margin-left:132px}
.l_square span{position:absolute;top:0px;left:20px;height:36px;width:36px;border-radius:2px;background-color:#FFFFFF}
.l_square span:nth-child(1){top:0px}
.l_square span:nth-child(2){top:44px}
.l_square span:nth-child(3){top:88px}
.l_square:nth-child(1) span{-webkit-animation:animsquare1 2s infinite ease-in;animation:animsquare1 2s infinite ease-in}
.l_square:nth-child(2) span{-webkit-animation:animsquare2 2s infinite ease-in;animation:animsquare2 2s infinite ease-in}
.l_square:nth-child(3) span{-webkit-animation:animsquare3 2s infinite ease-in;animation:animsquare3 2s infinite ease-in}
.l_square:nth-child(4) span{-webkit-animation:animsquare4 2s infinite ease-in;animation:animsquare4 2s infinite ease-in}
.l_square span:nth-child(1){-webkit-animation-delay:0.00s;animation-delay:0.00s}
.l_square span:nth-child(2){-webkit-animation-delay:0.15s;animation-delay:0.15s}
.l_square span:nth-child(3){-webkit-animation-delay:0.30s;animation-delay:0.30s}
@-webkit-keyframes animsquare1{0%,5%,95%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}30%,70%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare1{0%,5%,95%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}30%,70%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@-webkit-keyframes animsquare2{0%,10%,90%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}35%,65%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare2{0%,10%,90%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}35%,65%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@-webkit-keyframes animsquare3{0%,15%,85%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}40%,60%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare3{0%,15%,85%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}40%,60%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@-webkit-keyframes animsquare4{0%,20%,80%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}45%,55%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
@keyframes animsquare4{0%,20%,80%,100%{-webkit-transform:translate(0px,0px) rotate(0deg);transform:translate(0px,0px) rotate(0deg)}45%,55%{-webkit-transform:translate(-40px,0px) rotate(-90deg);transform:translate(-40px,0px) rotate(-90deg)}}
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