【CSS】纯CSS Loading动画组件

<template>
    <div class="ai-loader-box">
        <!-- AI loader -->
        <div class="ai-loader">
        <div class="text">
          <p>AI智能分析中....</p>
        </div>
      <div class="horizontal"><div class="circlesup"><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div></div><div class="circlesdwn"><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div></div></div><div class="vertical"><div class="circlesup"><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div></div><div class="circlesdwn"><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div><div class="circle"></div></div></div></div>
    </div>
</template>

<style scoped>
.ai-loader-box{
    position: relative;
    width: 600px;
    height: 600px;
    margin: 20px auto;
}
/* Start the loader code, first, let's align it the center of screen */
.ai-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -mos-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    text-align: center;
    /* disable selection and cursor changes */
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    cursor: default;
}

/* Text align it the center of screen and connect the looped animation for 2 seconds */
.text {
  position: absolute;
    left: -110px;
    top: -1.7em;
    /* -webkit-animation: text 2s infinite;
    -moz-animation: text 2s infinite;
    -moz-animation: text 2s infinite;
    -ms-animation: text 2s infinite;
    -o-animation: text 2s infinite;
    animation: text 2s infinite; */
    width: 280px;
    z-index: 10;
    color: #f00;
    background: #fff1f1db;
    border-radius: 4px;
    font-size: 40px;
}

/* Set for the first layer vertical position */
.vertical {
    position: absolute;
    top: -1.84em;
    left: -0.4em;
    -webkit-transform: rotate(90deg);
    -moz-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    -o-transform: rotate(90deg);
    transform: rotate(90deg);
}

/* Set for the second layer horizontal position */
.horizontal {
    position: absolute;
    top: 0em;
    left: 0em;
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
}

/* The next two classes do mirror for animation */
.circlesup {
    position: absolute;
    top: -4.7em;
    right: 12.1em;
}

.circlesdwn {
    position: absolute;
    top: 2.5em;
    right: -13.5em;
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
}

/* Create a container for our circles, rotate it 45 degrees and set animation*/
.circle {
    position: absolute;
    width: 15em;
    height: 15em;
    -webkit-transform: rotate(45deg);
    -moz-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    -o-transform: rotate(45deg);
    transform: rotate(45deg);
    -webkit-animation: orbit 2s infinite;
    -moz-animation: orbit 2s infinite;
    -moz-animation: orbit 2s infinite;
    -ms-animation: orbit 2s infinite;
    -o-animation: orbit 2s infinite;
    animation: orbit 2s infinite;
    z-index: 5;
}

/* Style's of our circles */
.circle:after {
    content: '';
    position: absolute;
    width: 2em;
    height: 2em;
    -webkit-border-radius: 100%;
    -moz-border-radius: 100%;
    -ms-border-radius: 100%;
    -o-border-radius: 100%;
    border-radius: 100%;
    background: rgb(255, 20, 20);
    /* Pick a color 1*/
}

.circle:nth-child(2) {
    -webkit-animation-delay: 100ms;
    -moz-animation-delay: 100ms;
    -ms-animation-delay: 100ms;
    -o-animation-delay: 100ms;
    animation-delay: 100ms;
    z-index: 4;
}

.circle:nth-child(2):after {
    background: var(--el-color-primary);
    /* Pick a color 2*/
    -webkit-transform: scale(0.8,0.8);
    -moz-transform: scale(0.8,0.8);
    -ms-transform: scale(0.8,0.8);
    -o-transform: scale(0.8,0.8);
    transform: scale(0.8,0.8);
}

.circle:nth-child(3) {
    -webkit-animation-delay: 225ms;
    -moz-animation-delay: 225ms;
    -ms-animation-delay: 225ms;
    -o-animation-delay: 225ms;
    animation-delay: 225ms;
    z-index: 3;
}

.circle:nth-child(3):after {
    background: var(--el-color-primary-light-3);
    /* Pick a color 3*/
    -webkit-transform: scale(0.6,0.6);
    -moz-transform: scale(0.6,0.6);
    -ms-transform: scale(0.6,0.6);
    -o-transform: scale(0.6,0.6);
    transform: scale(0.6,0.6);
}

.circle:nth-child(4) {
    -webkit-animation-delay: 350ms;
    -moz-animation-delay: 350ms;
    -ms-animation-delay: 350ms;
    -o-animation-delay: 350ms;
    animation-delay: 350ms;
    z-index: 2;
}

.circle:nth-child(4):after {
    background: var(--el-color-primary-light-5);
    /* Pick a color 4*/
    -webkit-transform: scale(0.4,0.4);
    -moz-transform: scale(0.4,0.4);
    -ms-transform: scale(0.4,0.4);
    -o-transform: scale(0.4,0.4);
    transform: scale(0.4,0.4);
}

.circle:nth-child(5) {
    -webkit-animation-delay: 475ms;
    -moz-animation-delay: 475ms;
    -ms-animation-delay: 475ms;
    -o-animation-delay: 475ms;
    animation-delay: 475ms;
    z-index: 1;
}

.circle:nth-child(5):after {
    background: var(--el-color-primary);
    /* Pick a color 5*/
    -webkit-transform: scale(0.2,0.2);
    -moz-transform: scale(0.2,0.2);
    -ms-transform: scale(0.2,0.2);
    -o-transform: scale(0.2,0.2);
    transform: scale(0.2,0.2);
}

/* Animation keys */
@-webkit-keyframes orbit {
    0% {
        -webkit-transform: rotate(45deg);
    }

    5% {
        -webkit-transform: rotate(45deg);
        -webkit-animation-timing-function: ease-out;
    }

    70% {
        -webkit-transform: rotate(405deg);
        -webkit-animation-timing-function: ease-in;
    }

    100% {
        -webkit-transform: rotate(405deg);
    }
}

@-moz-keyframes orbit {
    0% {
        -moz-transform: rotate(45deg);
    }

    5% {
        -moz-transform: rotate(45deg);
        -moz-animation-timing-function: ease-out;
    }

    70% {
        -moz-transform: rotate(405deg);
        -moz-animation-timing-function: ease-in;
    }

    100% {
        -moz-transform: rotate(405deg);
    }
}

@-ms-keyframes orbit {
    0% {
        -ms-transform: rotate(45deg);
    }

    5% {
        -ms-transform: rotate(45deg);
        -ms-animation-timing-function: ease-out;
    }

    70% {
        -ms-transform: rotate(405deg);
        -ms-animation-timing-function: ease-in;
    }

    100% {
        -ms-transform: rotate(405deg);
    }
}

@-o-keyframes orbit {
    0% {
        -o-transform: rotate(45deg);
    }

    5% {
        -o-transform: rotate(45deg);
        -o-animation-timing-function: ease-out;
    }

    70% {
        -o-transform: rotate(405deg);
        -o-animation-timing-function: ease-in;
    }

    100% {
        -o-transform: rotate(405deg);
    }
}

@keyframes orbit {
    0% {
        transform: rotate(45deg);
    }

    5% {
        transform: rotate(45deg);
        animation-timing-function: ease-out;
    }

    70% {
        transform: rotate(405deg);
        animation-timing-function: ease-in;
    }

    100% {
        transform: rotate(405deg);
    }
}

@-webkit-keyframes text {
    0% {
        -webkit-transform: scale(0.2,0.2);
        -webkit-animation-timing-function: ease-out;
    }

    40%,60% {
        -webkit-transform: scale(1,1);
        -webkit-animation-timing-function: ease-out;
    }

    70%,100% {
        -webkit-transform: scale(0.2,0.2);
    }
}

@-moz-keyframes text {
    0% {
        -moz-transform: scale(0.2,0.2);
        -moz-animation-timing-function: ease-out;
    }

    50% {
        -moz-transform: scale(1,1);
        -moz-animation-timing-function: ease-out;
    }

    60% {
        -moz-transform: scale(1,1);
        -moz-animation-timing-function: ease-out;
    }

    100% {
        -moz-transform: scale(0.2,0.2);
    }
}

@-mos-keyframes text {
    0% {
        -mos-transform: scale(0.2,0.2);
        -mos-animation-timing-function: ease-out;
    }

    50% {
        -mos-transform: scale(1,1);
        -mos-animation-timing-function: ease-out;
    }

    60% {
        -mos-transform: scale(1,1);
        -mos-animation-timing-function: ease-out;
    }

    100% {
        -mos-transform: scale(0.2,0.2);
    }
}

@-o-keyframes text {
    0% {
        -o-transform: scale(1,1);
        -o-animation-timing-function: ease-out;
    }

    50% {
        -o-transform: scale(2,2);
        -o-animation-timing-function: ease-out;
    }

    100% {
        -o-transform: scale(1,1);
        -o-animation-timing-function: ease-out;
    }
}

@keyframes text {
    0% {
        transform: scale(1,1);
        animation-timing-function: ease-out;
    }

    50% {
        transform: scale(2,2);
        animation-timing-function: ease-out;
    }

    100% {
      transform: scale(1,1);
        animation-timing-function: ease-out;
    }
}
</style>