css实现加载动画

不念不忘少年蓝@ 2022-06-01 11:54 321阅读 0赞

##### css实现加载动画 #####

/* * Usage: * * <div class="sk-spinner sk-spinner-rotating-plane"></div> * */
    
    .sk-spinner-rotating-plane.sk-spinner { width: 30px; height: 30px; background-color: #1ab394; margin: 0 auto; -webkit-animation: sk-rotatePlane 1.2s infinite ease-in-out; animation: sk-rotatePlane 1.2s infinite ease-in-out; }
    
    @-webkit-keyframes sk-rotatePlane {
        0% { -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg); transform: perspective(120px) rotateX(0deg) rotateY(0deg); }
        50% { -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); }
        100% { -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); }
    }
    
    @keyframes sk-rotatePlane {
        0% { -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg); transform: perspective(120px) rotateX(0deg) rotateY(0deg); }
        50% { -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg); }
        100% { -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-double-bounce"> * <div class="sk-double-bounce1"></div> * <div class="sk-double-bounce2"></div> * </div> * */
    
    .sk-spinner-double-bounce.sk-spinner { width: 40px; height: 40px; position: relative; margin: 0 auto; }
    
    .sk-spinner-double-bounce .sk-double-bounce1,
    .sk-spinner-double-bounce .sk-double-bounce2 { width: 100%; height: 100%; border-radius: 50%; background-color: #1ab394; opacity: 0.6; position: absolute; top: 0; left: 0; -webkit-animation: sk-doubleBounce 2s infinite ease-in-out; animation: sk-doubleBounce 2s infinite ease-in-out; }
    
    .sk-spinner-double-bounce .sk-double-bounce2 { -webkit-animation-delay: -1s; animation-delay: -1s; }
    
    @-webkit-keyframes sk-doubleBounce {
        0%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        50% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    @keyframes sk-doubleBounce {
        0%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        50% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-wave"> * <div class="sk-rect1"></div> * <div class="sk-rect2"></div> * <div class="sk-rect3"></div> * <div class="sk-rect4"></div> * <div class="sk-rect5"></div> * </div> * */
    
    .sk-spinner-wave.sk-spinner { margin: 0 auto; width: 50px; height: 30px; text-align: center; font-size: 10px; }
    
    .sk-spinner-wave div { background-color: #1ab394; height: 100%; width: 6px; display: inline-block; -webkit-animation: sk-waveStretchDelay 1.2s infinite ease-in-out; animation: sk-waveStretchDelay 1.2s infinite ease-in-out; }
    
    .sk-spinner-wave .sk-rect2 { -webkit-animation-delay: -1.1s; animation-delay: -1.1s; }
    
    .sk-spinner-wave .sk-rect3 { -webkit-animation-delay: -1s; animation-delay: -1s; }
    
    .sk-spinner-wave .sk-rect4 { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; }
    
    .sk-spinner-wave .sk-rect5 { -webkit-animation-delay: -0.8s; animation-delay: -0.8s; }
    
    @-webkit-keyframes sk-waveStretchDelay {
        0%,
        40%,
        100% { -webkit-transform: scaleY(0.4); transform: scaleY(0.4); }
        20% { -webkit-transform: scaleY(1); transform: scaleY(1); }
    }
    
    @keyframes sk-waveStretchDelay {
        0%,
        40%,
        100% { -webkit-transform: scaleY(0.4); transform: scaleY(0.4); }
        20% { -webkit-transform: scaleY(1); transform: scaleY(1); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-wandering-cubes"> * <div class="sk-cube1"></div> * <div class="sk-cube2"></div> * </div> * */
    
    .sk-spinner-wandering-cubes.sk-spinner { margin: 0 auto; width: 32px; height: 32px; position: relative; }
    
    .sk-spinner-wandering-cubes .sk-cube1,
    .sk-spinner-wandering-cubes .sk-cube2 { background-color: #1ab394; width: 10px; height: 10px; position: absolute; top: 0; left: 0; -webkit-animation: sk-wanderingCubeMove 1.8s infinite ease-in-out; animation: sk-wanderingCubeMove 1.8s infinite ease-in-out; }
    
    .sk-spinner-wandering-cubes .sk-cube2 { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; }
    
    @-webkit-keyframes sk-wanderingCubeMove {
        25% { -webkit-transform: translateX(42px) rotate(-90deg) scale(0.5); transform: translateX(42px) rotate(-90deg) scale(0.5); }
        50% { /* Hack to make FF rotate in the right direction */ -webkit-transform: translateX(42px) translateY(42px) rotate(-179deg); transform: translateX(42px) translateY(42px) rotate(-179deg); }
        50.1% { -webkit-transform: translateX(42px) translateY(42px) rotate(-180deg); transform: translateX(42px) translateY(42px) rotate(-180deg); }
        75% { -webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5); transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5); }
        100% { -webkit-transform: rotate(-360deg); transform: rotate(-360deg); }
    }
    
    @keyframes sk-wanderingCubeMove {
        25% { -webkit-transform: translateX(42px) rotate(-90deg) scale(0.5); transform: translateX(42px) rotate(-90deg) scale(0.5); }
        50% { /* Hack to make FF rotate in the right direction */ -webkit-transform: translateX(42px) translateY(42px) rotate(-179deg); transform: translateX(42px) translateY(42px) rotate(-179deg); }
        50.1% { -webkit-transform: translateX(42px) translateY(42px) rotate(-180deg); transform: translateX(42px) translateY(42px) rotate(-180deg); }
        75% { -webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5); transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5); }
        100% { -webkit-transform: rotate(-360deg); transform: rotate(-360deg); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-pulse"></div> * */
    
    .sk-spinner-pulse.sk-spinner { width: 40px; height: 40px; margin: 0 auto; background-color: #1ab394; border-radius: 100%; -webkit-animation: sk-pulseScaleOut 1s infinite ease-in-out; animation: sk-pulseScaleOut 1s infinite ease-in-out; }
    
    @-webkit-keyframes sk-pulseScaleOut {
        0% { -webkit-transform: scale(0); transform: scale(0); }
        100% { -webkit-transform: scale(1); transform: scale(1); opacity: 0; }
    }
    
    @keyframes sk-pulseScaleOut {
        0% { -webkit-transform: scale(0); transform: scale(0); }
        100% { -webkit-transform: scale(1); transform: scale(1); opacity: 0; }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-chasing-dots"> * <div class="sk-dot1"></div> * <div class="sk-dot2"></div> * </div> * */
    
    .sk-spinner-chasing-dots.sk-spinner { margin: 0 auto; width: 40px; height: 40px; position: relative; text-align: center; -webkit-animation: sk-chasingDotsRotate 2s infinite linear; animation: sk-chasingDotsRotate 2s infinite linear; }
    
    .sk-spinner-chasing-dots .sk-dot1,
    .sk-spinner-chasing-dots .sk-dot2 { width: 60%; height: 60%; display: inline-block; position: absolute; top: 0; background-color: #1ab394; border-radius: 100%; -webkit-animation: sk-chasingDotsBounce 2s infinite ease-in-out; animation: sk-chasingDotsBounce 2s infinite ease-in-out; }
    
    .sk-spinner-chasing-dots .sk-dot2 { top: auto; bottom: 0px; -webkit-animation-delay: -1s; animation-delay: -1s; }
    
    @-webkit-keyframes sk-chasingDotsRotate {
        100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
    }
    
    @keyframes sk-chasingDotsRotate {
        100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
    }
    
    @-webkit-keyframes sk-chasingDotsBounce {
        0%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        50% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    @keyframes sk-chasingDotsBounce {
        0%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        50% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-three-bounce"> * <div class="sk-bounce1"></div> * <div class="sk-bounce2"></div> * <div class="sk-bounce3"></div> * </div> * */
    
    .sk-spinner-three-bounce.sk-spinner { margin: 0 auto; width: 70px; text-align: center; }
    
    .sk-spinner-three-bounce div { width: 18px; height: 18px; background-color: #1ab394; border-radius: 100%; display: inline-block; -webkit-animation: sk-threeBounceDelay 1.4s infinite ease-in-out; animation: sk-threeBounceDelay 1.4s infinite ease-in-out; /* Prevent first frame from flickering when animation starts */ -webkit-animation-fill-mode: both; animation-fill-mode: both; }
    
    .sk-spinner-three-bounce .sk-bounce1 { -webkit-animation-delay: -0.32s; animation-delay: -0.32s; }
    
    .sk-spinner-three-bounce .sk-bounce2 { -webkit-animation-delay: -0.16s; animation-delay: -0.16s; }
    
    @-webkit-keyframes sk-threeBounceDelay {
        0%,
        80%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        40% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    @keyframes sk-threeBounceDelay {
        0%,
        80%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        40% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-circle"> * <div class="sk-circle1 sk-circle"></div> * <div class="sk-circle2 sk-circle"></div> * <div class="sk-circle3 sk-circle"></div> * <div class="sk-circle4 sk-circle"></div> * <div class="sk-circle5 sk-circle"></div> * <div class="sk-circle6 sk-circle"></div> * <div class="sk-circle7 sk-circle"></div> * <div class="sk-circle8 sk-circle"></div> * <div class="sk-circle9 sk-circle"></div> * <div class="sk-circle10 sk-circle"></div> * <div class="sk-circle11 sk-circle"></div> * <div class="sk-circle12 sk-circle"></div> * </div> * */
    
    .sk-spinner-circle.sk-spinner { margin: 0 auto; width: 22px; height: 22px; position: relative; }
    
    .sk-spinner-circle .sk-circle { width: 100%; height: 100%; position: absolute; left: 0; top: 0; }
    
    .sk-spinner-circle .sk-circle:before { content: ''; display: block; margin: 0 auto; width: 20%; height: 20%; background-color: #1ab394; border-radius: 100%; -webkit-animation: sk-circleBounceDelay 1.2s infinite ease-in-out; animation: sk-circleBounceDelay 1.2s infinite ease-in-out; /* Prevent first frame from flickering when animation starts */ -webkit-animation-fill-mode: both; animation-fill-mode: both; }
    
    .sk-spinner-circle .sk-circle2 { -webkit-transform: rotate(30deg); -ms-transform: rotate(30deg); transform: rotate(30deg); }
    
    .sk-spinner-circle .sk-circle3 { -webkit-transform: rotate(60deg); -ms-transform: rotate(60deg); transform: rotate(60deg); }
    
    .sk-spinner-circle .sk-circle4 { -webkit-transform: rotate(90deg); -ms-transform: rotate(90deg); transform: rotate(90deg); }
    
    .sk-spinner-circle .sk-circle5 { -webkit-transform: rotate(120deg); -ms-transform: rotate(120deg); transform: rotate(120deg); }
    
    .sk-spinner-circle .sk-circle6 { -webkit-transform: rotate(150deg); -ms-transform: rotate(150deg); transform: rotate(150deg); }
    
    .sk-spinner-circle .sk-circle7 { -webkit-transform: rotate(180deg); -ms-transform: rotate(180deg); transform: rotate(180deg); }
    
    .sk-spinner-circle .sk-circle8 { -webkit-transform: rotate(210deg); -ms-transform: rotate(210deg); transform: rotate(210deg); }
    
    .sk-spinner-circle .sk-circle9 { -webkit-transform: rotate(240deg); -ms-transform: rotate(240deg); transform: rotate(240deg); }
    
    .sk-spinner-circle .sk-circle10 { -webkit-transform: rotate(270deg); -ms-transform: rotate(270deg); transform: rotate(270deg); }
    
    .sk-spinner-circle .sk-circle11 { -webkit-transform: rotate(300deg); -ms-transform: rotate(300deg); transform: rotate(300deg); }
    
    .sk-spinner-circle .sk-circle12 { -webkit-transform: rotate(330deg); -ms-transform: rotate(330deg); transform: rotate(330deg); }
    
    .sk-spinner-circle .sk-circle2:before { -webkit-animation-delay: -1.1s; animation-delay: -1.1s; }
    
    .sk-spinner-circle .sk-circle3:before { -webkit-animation-delay: -1s; animation-delay: -1s; }
    
    .sk-spinner-circle .sk-circle4:before { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; }
    
    .sk-spinner-circle .sk-circle5:before { -webkit-animation-delay: -0.8s; animation-delay: -0.8s; }
    
    .sk-spinner-circle .sk-circle6:before { -webkit-animation-delay: -0.7s; animation-delay: -0.7s; }
    
    .sk-spinner-circle .sk-circle7:before { -webkit-animation-delay: -0.6s; animation-delay: -0.6s; }
    
    .sk-spinner-circle .sk-circle8:before { -webkit-animation-delay: -0.5s; animation-delay: -0.5s; }
    
    .sk-spinner-circle .sk-circle9:before { -webkit-animation-delay: -0.4s; animation-delay: -0.4s; }
    
    .sk-spinner-circle .sk-circle10:before { -webkit-animation-delay: -0.3s; animation-delay: -0.3s; }
    
    .sk-spinner-circle .sk-circle11:before { -webkit-animation-delay: -0.2s; animation-delay: -0.2s; }
    
    .sk-spinner-circle .sk-circle12:before { -webkit-animation-delay: -0.1s; animation-delay: -0.1s; }
    
    @-webkit-keyframes sk-circleBounceDelay {
        0%,
        80%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        40% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    @keyframes sk-circleBounceDelay {
        0%,
        80%,
        100% { -webkit-transform: scale(0); transform: scale(0); }
        40% { -webkit-transform: scale(1); transform: scale(1); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-cube-grid"> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * <div class="sk-cube"></div> * </div> * */
    
    .sk-spinner-cube-grid { /* * Spinner positions * 1 2 3 * 4 5 6 * 7 8 9 */ }
    
    .sk-spinner-cube-grid.sk-spinner { width: 30px; height: 30px; margin: 0 auto; }
    
    .sk-spinner-cube-grid .sk-cube { width: 33%; height: 33%; background-color: #1ab394; float: left; -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out; animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(1) { -webkit-animation-delay: 0.2s; animation-delay: 0.2s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(2) { -webkit-animation-delay: 0.3s; animation-delay: 0.3s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(3) { -webkit-animation-delay: 0.4s; animation-delay: 0.4s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(4) { -webkit-animation-delay: 0.1s; animation-delay: 0.1s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(5) { -webkit-animation-delay: 0.2s; animation-delay: 0.2s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(6) { -webkit-animation-delay: 0.3s; animation-delay: 0.3s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(7) { -webkit-animation-delay: 0s; animation-delay: 0s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(8) { -webkit-animation-delay: 0.1s; animation-delay: 0.1s; }
    
    .sk-spinner-cube-grid .sk-cube:nth-child(9) { -webkit-animation-delay: 0.2s; animation-delay: 0.2s; }
    
    @-webkit-keyframes sk-cubeGridScaleDelay {
        0%,
        70%,
        100% { -webkit-transform: scale3D(1, 1, 1); transform: scale3D(1, 1, 1); }
        35% { -webkit-transform: scale3D(0, 0, 1); transform: scale3D(0, 0, 1); }
    }
    
    @keyframes sk-cubeGridScaleDelay {
        0%,
        70%,
        100% { -webkit-transform: scale3D(1, 1, 1); transform: scale3D(1, 1, 1); }
        35% { -webkit-transform: scale3D(0, 0, 1); transform: scale3D(0, 0, 1); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-wordpress"> * <span class="sk-inner-circle"></span> * </div> * */
    
    .sk-spinner-wordpress.sk-spinner { background-color: #1ab394; width: 30px; height: 30px; border-radius: 30px; position: relative; margin: 0 auto; -webkit-animation: sk-innerCircle 1s linear infinite; animation: sk-innerCircle 1s linear infinite; }
    
    .sk-spinner-wordpress .sk-inner-circle { display: block; background-color: #fff; width: 8px; height: 8px; position: absolute; border-radius: 8px; top: 5px; left: 5px; }
    
    @-webkit-keyframes sk-innerCircle {
        0% { -webkit-transform: rotate(0); transform: rotate(0); }
        100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
    }
    
    @keyframes sk-innerCircle {
        0% { -webkit-transform: rotate(0); transform: rotate(0); }
        100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); }
    }
    
    
    /* * Usage: * * <div class="sk-spinner sk-spinner-fading-circle"> * <div class="sk-circle1 sk-circle"></div> * <div class="sk-circle2 sk-circle"></div> * <div class="sk-circle3 sk-circle"></div> * <div class="sk-circle4 sk-circle"></div> * <div class="sk-circle5 sk-circle"></div> * <div class="sk-circle6 sk-circle"></div> * <div class="sk-circle7 sk-circle"></div> * <div class="sk-circle8 sk-circle"></div> * <div class="sk-circle9 sk-circle"></div> * <div class="sk-circle10 sk-circle"></div> * <div class="sk-circle11 sk-circle"></div> * <div class="sk-circle12 sk-circle"></div> * </div> * */
    
    .sk-spinner-fading-circle.sk-spinner { margin: 0 auto; width: 22px; height: 22px; position: relative; }
    
    .sk-spinner-fading-circle .sk-circle { width: 100%; height: 100%; position: absolute; left: 0; top: 0; }
    
    .sk-spinner-fading-circle .sk-circle:before { content: ''; display: block; margin: 0 auto; width: 18%; height: 18%; background-color: #1ab394; border-radius: 100%; -webkit-animation: sk-circleFadeDelay 1.2s infinite ease-in-out; animation: sk-circleFadeDelay 1.2s infinite ease-in-out; /* Prevent first frame from flickering when animation starts */ -webkit-animation-fill-mode: both; animation-fill-mode: both; }
    
    .sk-spinner-fading-circle .sk-circle2 { -webkit-transform: rotate(30deg); -ms-transform: rotate(30deg); transform: rotate(30deg); }
    
    .sk-spinner-fading-circle .sk-circle3 { -webkit-transform: rotate(60deg); -ms-transform: rotate(60deg); transform: rotate(60deg); }
    
    .sk-spinner-fading-circle .sk-circle4 { -webkit-transform: rotate(90deg); -ms-transform: rotate(90deg); transform: rotate(90deg); }
    
    .sk-spinner-fading-circle .sk-circle5 { -webkit-transform: rotate(120deg); -ms-transform: rotate(120deg); transform: rotate(120deg); }
    
    .sk-spinner-fading-circle .sk-circle6 { -webkit-transform: rotate(150deg); -ms-transform: rotate(150deg); transform: rotate(150deg); }
    
    .sk-spinner-fading-circle .sk-circle7 { -webkit-transform: rotate(180deg); -ms-transform: rotate(180deg); transform: rotate(180deg); }
    
    .sk-spinner-fading-circle .sk-circle8 { -webkit-transform: rotate(210deg); -ms-transform: rotate(210deg); transform: rotate(210deg); }
    
    .sk-spinner-fading-circle .sk-circle9 { -webkit-transform: rotate(240deg); -ms-transform: rotate(240deg); transform: rotate(240deg); }
    
    .sk-spinner-fading-circle .sk-circle10 { -webkit-transform: rotate(270deg); -ms-transform: rotate(270deg); transform: rotate(270deg); }
    
    .sk-spinner-fading-circle .sk-circle11 { -webkit-transform: rotate(300deg); -ms-transform: rotate(300deg); transform: rotate(300deg); }
    
    .sk-spinner-fading-circle .sk-circle12 { -webkit-transform: rotate(330deg); -ms-transform: rotate(330deg); transform: rotate(330deg); }
    
    .sk-spinner-fading-circle .sk-circle2:before { -webkit-animation-delay: -1.1s; animation-delay: -1.1s; }
    
    .sk-spinner-fading-circle .sk-circle3:before { -webkit-animation-delay: -1s; animation-delay: -1s; }
    
    .sk-spinner-fading-circle .sk-circle4:before { -webkit-animation-delay: -0.9s; animation-delay: -0.9s; }
    
    .sk-spinner-fading-circle .sk-circle5:before { -webkit-animation-delay: -0.8s; animation-delay: -0.8s; }
    
    .sk-spinner-fading-circle .sk-circle6:before { -webkit-animation-delay: -0.7s; animation-delay: -0.7s; }
    
    .sk-spinner-fading-circle .sk-circle7:before { -webkit-animation-delay: -0.6s; animation-delay: -0.6s; }
    
    .sk-spinner-fading-circle .sk-circle8:before { -webkit-animation-delay: -0.5s; animation-delay: -0.5s; }
    
    .sk-spinner-fading-circle .sk-circle9:before { -webkit-animation-delay: -0.4s; animation-delay: -0.4s; }
    
    .sk-spinner-fading-circle .sk-circle10:before { -webkit-animation-delay: -0.3s; animation-delay: -0.3s; }
    
    .sk-spinner-fading-circle .sk-circle11:before { -webkit-animation-delay: -0.2s; animation-delay: -0.2s; }
    
    .sk-spinner-fading-circle .sk-circle12:before { -webkit-animation-delay: -0.1s; animation-delay: -0.1s; }
    
    @-webkit-keyframes sk-circleFadeDelay {
        0%,
        39%,
        100% { opacity: 0; }
        40% { opacity: 1; }
    }
    
    @keyframes sk-circleFadeDelay {
        0%,
        39%,
        100% { opacity: 0; }
        40% { opacity: 1; }
    }