学习CSS 实现各种 Loading 效果附带解析过程

2023年12月19日 16:23:12益点益滴1350

HTML

  <div class="spinner"></div>

CSS

  .spinner {    width: 40px;    height: 40px;    background-color: #333;      margin: 100px 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) }    50% { -webkit-transform: perspective(120px) rotateY(180deg) }    100% { -webkit-transform: perspective(120px) rotateY(180deg)  rotateX(180deg) }  }    @keyframes sk-rotateplane {    0% {       transform: perspective(120px) rotateX(0deg) rotateY(0deg);      -webkit-transform: perspective(120px) rotateX(0deg) rotateY(0deg)     } 50% {       transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg);      -webkit-transform: perspective(120px) rotateX(-180.1deg) rotateY(0deg)     } 100% {       transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);      -webkit-transform: perspective(120px) rotateX(-180deg) rotateY(-179.9deg);    }  }

解析:定义一个 div元素,设置边长为 40px 背景白色的正方形,然后设置循环翻转动画实现该加载效果动画

perspective 属性定义 3D 元素距视图的距离

HTML

  <div class="sk-chase">    <div class="sk-chase-dot"></div>    <div class="sk-chase-dot"></div>    <div class="sk-chase-dot"></div>    <div class="sk-chase-dot"></div>    <div class="sk-chase-dot"></div>    <div class="sk-chase-dot"></div>  </div>

CSS

  .sk-chase {    width: 40px;    height: 40px;    position: relative;    animation: sk-chase 2.5s infinite linear both;  }    .sk-chase-dot {    width: 100%;    height: 100%;    position: absolute;    left: 0;    top: 0;     animation: sk-chase-dot 2.0s infinite ease-in-out both;   }    .sk-chase-dot:before {    content: '';    display: block;    width: 25%;    height: 25%;    background-color: #fff;    border-radius: 100%;    animation: sk-chase-dot-before 2.0s infinite ease-in-out both;   }    .sk-chase-dot:nth-child(1) { animation-delay: -1.1s; }  .sk-chase-dot:nth-child(2) { animation-delay: -1.0s; }  .sk-chase-dot:nth-child(3) { animation-delay: -0.9s; }  .sk-chase-dot:nth-child(4) { animation-delay: -0.8s; }  .sk-chase-dot:nth-child(5) { animation-delay: -0.7s; }  .sk-chase-dot:nth-child(6) { animation-delay: -0.6s; }  .sk-chase-dot:nth-child(1):before { animation-delay: -1.1s; }  .sk-chase-dot:nth-child(2):before { animation-delay: -1.0s; }  .sk-chase-dot:nth-child(3):before { animation-delay: -0.9s; }  .sk-chase-dot:nth-child(4):before { animation-delay: -0.8s; }  .sk-chase-dot:nth-child(5):before { animation-delay: -0.7s; }  .sk-chase-dot:nth-child(6):before { animation-delay: -0.6s; }    @keyframes sk-chase {    100% { transform: rotate(360deg); }   }    @keyframes sk-chase-dot {    80%, 100% { transform: rotate(360deg); }   }    @keyframes sk-chase-dot-before {    50% {      transform: scale(0.4);     } 100%, 0% {      transform: scale(1.0);     }   }

解析:定义一个父元素 div,内含六个白色实心圆点,添加旋转动画,通过设置不同的延迟时间来达到依次出现的效果

HTML

  <div class="spinner">    <div class="double-bounce1"></div>    <div class="double-bounce2"></div>  </div>

CSS

  .spinner {    width: 40px;    height: 40px;      position: relative;    margin: 100px auto;  }    .double-bounce1, .double-bounce2 {    width: 100%;    height: 100%;    border-radius: 50%;    background-color: #333;    opacity: 0.6;    position: absolute;    top: 0;    left: 0;        -webkit-animation: sk-bounce 2.0s infinite ease-in-out;    animation: sk-bounce 2.0s infinite ease-in-out;  }    .double-bounce2 {    -webkit-animation-delay: -1.0s;    animation-delay: -1.0s;  }    @-webkit-keyframes sk-bounce {    0%, 100% { -webkit-transform: scale(0.0) }    50% { -webkit-transform: scale(1.0) }  }    @keyframes sk-bounce {    0%, 100% {       transform: scale(0.0);      -webkit-transform: scale(0.0);    } 50% {       transform: scale(1.0);      -webkit-transform: scale(1.0);    }  }

解析:两个子元素 div 实现半透明的圆形,设置绝对定位重叠在一起,然后设置相同的动画通过不同的延迟时间交替放大缩小。

HTML

  <div class="spinner">    <div class="rect1"></div>    <div class="rect2"></div>    <div class="rect3"></div>    <div class="rect4"></div>    <div class="rect5"></div>  </div>

CSS

  .spinner {    margin: 100px auto;    width: 50px;    height: 40px;    text-align: center;    font-size: 10px;  }    .spinner > div {    background-color: #333;    height: 100%;    width: 6px;    display: inline-block;        -webkit-animation: sk-stretchdelay 1.2s infinite ease-in-out;    animation: sk-stretchdelay 1.2s infinite ease-in-out;  }    .spinner .rect2 {    -webkit-animation-delay: -1.1s;    animation-delay: -1.1s;  }    .spinner .rect3 {    -webkit-animation-delay: -1.0s;    animation-delay: -1.0s;  }    .spinner .rect4 {    -webkit-animation-delay: -0.9s;    animation-delay: -0.9s;  }    .spinner .rect5 {    -webkit-animation-delay: -0.8s;    animation-delay: -0.8s;  }    @-webkit-keyframes sk-stretchdelay {    0%, 40%, 100% { -webkit-transform: scaleY(0.4) }      20% { -webkit-transform: scaleY(1.0) }  }    @keyframes sk-stretchdelay {    0%, 40%, 100% {       transform: scaleY(0.4);      -webkit-transform: scaleY(0.4);    }  20% {       transform: scaleY(1.0);      -webkit-transform: scaleY(1.0);    }  }

解析:在类名为 spinner元素下有五个 div 实现的长方形元素,设置Y轴的缩放,通过不同的延迟时间来达到依次变化的效果。

HTML

  <div class="spinner">    <div class="cube1"></div>    <div class="cube2"></div>  </div>

CSS

  .cube1, .cube2 {    background-color: #333;    width: 15px;    height: 15px;    position: absolute;    top: 0;    left: 0;        -webkit-animation: sk-cubemove 1.8s infinite ease-in-out;    animation: sk-cubemove 1.8s infinite ease-in-out;  }    .cube2 {    -webkit-animation-delay: -0.9s;    animation-delay: -0.9s;  }    @-webkit-keyframes sk-cubemove {    25% { -webkit-transform: translateX(42px) rotate(-90deg) scale(0.5) }    50% { -webkit-transform: translateX(42px) translateY(42px) rotate(-180deg) }    75% { -webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5) }    100% { -webkit-transform: rotate(-360deg) }  }    @keyframes sk-cubemove {    25% {       transform: translateX(42px) rotate(-90deg) scale(0.5);      -webkit-transform: translateX(42px) rotate(-90deg) scale(0.5);    } 50% {       transform: translateX(42px) translateY(42px) rotate(-179deg);      -webkit-transform: translateX(42px) translateY(42px) rotate(-179deg);    } 50.1% {       transform: translateX(42px) translateY(42px) rotate(-180deg);      -webkit-transform: translateX(42px) translateY(42px) rotate(-180deg);    } 75% {       transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5);      -webkit-transform: translateX(0px) translateY(42px) rotate(-270deg) scale(0.5);    } 100% {       transform: rotate(-360deg);      -webkit-transform: rotate(-360deg);    }  }

解析:两个子元素实现白色的方块,添加动画属性,在X轴和Y轴分别设置移动距离和缩放,通过不同的延迟时间来分离他们,rorate实现围绕中心旋转。

HTML

  <div class="spinner"></div>

CSS

  .spinner {    width: 40px;    height: 40px;    margin: 100px auto;    background-color: #333;      border-radius: 100%;      -webkit-animation: sk-scaleout 1.0s infinite ease-in-out;    animation: sk-scaleout 1.0s infinite ease-in-out;  }    @-webkit-keyframes sk-scaleout {    0% { -webkit-transform: scale(0) }    100% {      -webkit-transform: scale(1.0);      opacity: 0;    }  }    @keyframes sk-scaleout {    0% {       -webkit-transform: scale(0);      transform: scale(0);    } 100% {      -webkit-transform: scale(1.0);      transform: scale(1.0);      opacity: 0;    }  }

解析:唯一的 div元素实现白色背景圆点,通过设置缩放和透明度实现呼吸灯的效果。

HTML

  <div class="spinner">    <div class="dot1"></div>    <div class="dot2"></div>  </div>

CSS

  .spinner {    margin: 100px auto;    width: 40px;    height: 40px;    position: relative;    text-align: center;        -webkit-animation: sk-rotate 2.0s infinite linear;    animation: sk-rotate 2.0s infinite linear;  }    .dot1, .dot2 {    width: 60%;    height: 60%;    display: inline-block;    position: absolute;    top: 0;    background-color: #333;    border-radius: 100%;        -webkit-animation: sk-bounce 2.0s infinite ease-in-out;    animation: sk-bounce 2.0s infinite ease-in-out;  }    .dot2 {    top: auto;    bottom: 0;    -webkit-animation-delay: -1.0s;    animation-delay: -1.0s;  }    @-webkit-keyframes sk-rotate { 100% { -webkit-transform: rotate(360deg) }}  @keyframes sk-rotate { 100% { transform: rotate(360deg); -webkit-transform: rotate(360deg) }}    @-webkit-keyframes sk-bounce {    0%, 100% { -webkit-transform: scale(0.0) }    50% { -webkit-transform: scale(1.0) }  }    @keyframes sk-bounce {    0%, 100% {       transform: scale(0.0);      -webkit-transform: scale(0.0);    } 50% {       transform: scale(1.0);      -webkit-transform: scale(1.0);    }  }

解析:两个实心圆形围绕中心做循环的缩放旋转运动,因为不同的延迟时间来达到它们同一时间呈现相反的表现。

HTML

  <div class="spinner">    <div class="bounce1"></div>    <div class="bounce2"></div>    <div class="bounce3"></div>  </div>

CSS

  .spinner {    margin: 100px auto 0;    width: 70px;    text-align: center;  }    .spinner > div {    width: 18px;    height: 18px;    background-color: #333;      border-radius: 100%;    display: inline-block;    -webkit-animation: sk-bouncedelay 1.4s infinite ease-in-out both;    animation: sk-bouncedelay 1.4s infinite ease-in-out both;  }    .spinner .bounce1 {    -webkit-animation-delay: -0.32s;    animation-delay: -0.32s;  }    .spinner .bounce2 {    -webkit-animation-delay: -0.16s;    animation-delay: -0.16s;  }    @-webkit-keyframes sk-bouncedelay {    0%, 80%, 100% { -webkit-transform: scale(0) }    40% { -webkit-transform: scale(1.0) }  }    @keyframes sk-bouncedelay {    0%, 80%, 100% {       -webkit-transform: scale(0);      transform: scale(0);    } 40% {       -webkit-transform: scale(1.0);      transform: scale(1.0);    }  }

解析:三个实色圆形横向排列,线性动画 scale从0到1,通过给它们不同的延迟时间,呈现依次交替的效果。

HTML

  <div class="sk-circle">    <div class="sk-circle1 sk-child"></div>    <div class="sk-circle2 sk-child"></div>    <div class="sk-circle3 sk-child"></div>    <div class="sk-circle4 sk-child"></div>    <div class="sk-circle5 sk-child"></div>    <div class="sk-circle6 sk-child"></div>    <div class="sk-circle7 sk-child"></div>    <div class="sk-circle8 sk-child"></div>    <div class="sk-circle9 sk-child"></div>    <div class="sk-circle10 sk-child"></div>    <div class="sk-circle11 sk-child"></div>    <div class="sk-circle12 sk-child"></div>  </div>

CSS

  .sk-circle {    margin: 100px auto;    width: 40px;    height: 40px;    position: relative;  }  .sk-circle .sk-child {    width: 100%;    height: 100%;    position: absolute;    left: 0;    top: 0;  }  .sk-circle .sk-child:before {    content: '';    display: block;    margin: 0 auto;    width: 15%;    height: 15%;    background-color: #333;    border-radius: 100%;    -webkit-animation: sk-circleBounceDelay 1.2s infinite ease-in-out both;            animation: sk-circleBounceDelay 1.2s infinite ease-in-out both;  }  .sk-circle .sk-circle2 {    -webkit-transform: rotate(30deg);        -ms-transform: rotate(30deg);            transform: rotate(30deg); }  .sk-circle .sk-circle3 {    -webkit-transform: rotate(60deg);        -ms-transform: rotate(60deg);            transform: rotate(60deg); }  .sk-circle .sk-circle4 {    -webkit-transform: rotate(90deg);        -ms-transform: rotate(90deg);            transform: rotate(90deg); }  .sk-circle .sk-circle5 {    -webkit-transform: rotate(120deg);        -ms-transform: rotate(120deg);            transform: rotate(120deg); }  .sk-circle .sk-circle6 {    -webkit-transform: rotate(150deg);        -ms-transform: rotate(150deg);            transform: rotate(150deg); }  .sk-circle .sk-circle7 {    -webkit-transform: rotate(180deg);        -ms-transform: rotate(180deg);            transform: rotate(180deg); }  .sk-circle .sk-circle8 {    -webkit-transform: rotate(210deg);        -ms-transform: rotate(210deg);            transform: rotate(210deg); }  .sk-circle .sk-circle9 {    -webkit-transform: rotate(240deg);        -ms-transform: rotate(240deg);            transform: rotate(240deg); }  .sk-circle .sk-circle10 {    -webkit-transform: rotate(270deg);        -ms-transform: rotate(270deg);            transform: rotate(270deg); }  .sk-circle .sk-circle11 {    -webkit-transform: rotate(300deg);        -ms-transform: rotate(300deg);            transform: rotate(300deg); }  .sk-circle .sk-circle12 {    -webkit-transform: rotate(330deg);        -ms-transform: rotate(330deg);            transform: rotate(330deg); }  .sk-circle .sk-circle2:before {    -webkit-animation-delay: -1.1s;            animation-delay: -1.1s; }  .sk-circle .sk-circle3:before {    -webkit-animation-delay: -1s;            animation-delay: -1s; }  .sk-circle .sk-circle4:before {    -webkit-animation-delay: -0.9s;            animation-delay: -0.9s; }  .sk-circle .sk-circle5:before {    -webkit-animation-delay: -0.8s;            animation-delay: -0.8s; }  .sk-circle .sk-circle6:before {    -webkit-animation-delay: -0.7s;            animation-delay: -0.7s; }  .sk-circle .sk-circle7:before {    -webkit-animation-delay: -0.6s;            animation-delay: -0.6s; }  .sk-circle .sk-circle8:before {    -webkit-animation-delay: -0.5s;            animation-delay: -0.5s; }  .sk-circle .sk-circle9:before {    -webkit-animation-delay: -0.4s;            animation-delay: -0.4s; }  .sk-circle .sk-circle10:before {    -webkit-animation-delay: -0.3s;            animation-delay: -0.3s; }  .sk-circle .sk-circle11:before {    -webkit-animation-delay: -0.2s;            animation-delay: -0.2s; }  .sk-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);    }  }

解析:整个加载效果由12个圆心组成,设置不同的旋转让它们呈现圆形环绕,然后设置不同的延迟时间,让它们做缩放运动。

HTML

  <div class="sk-cube-grid">    <div class="sk-cube sk-cube1"></div>    <div class="sk-cube sk-cube2"></div>    <div class="sk-cube sk-cube3"></div>    <div class="sk-cube sk-cube4"></div>    <div class="sk-cube sk-cube5"></div>    <div class="sk-cube sk-cube6"></div>    <div class="sk-cube sk-cube7"></div>    <div class="sk-cube sk-cube8"></div>    <div class="sk-cube sk-cube9"></div>  </div>

CSS

  .sk-cube-grid {    width: 40px;    height: 40px;    margin: 100px auto;  }    .sk-cube-grid .sk-cube {    width: 33%;    height: 33%;    background-color: #333;    float: left;    -webkit-animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;            animation: sk-cubeGridScaleDelay 1.3s infinite ease-in-out;   }  .sk-cube-grid .sk-cube1 {    -webkit-animation-delay: 0.2s;            animation-delay: 0.2s; }  .sk-cube-grid .sk-cube2 {    -webkit-animation-delay: 0.3s;            animation-delay: 0.3s; }  .sk-cube-grid .sk-cube3 {    -webkit-animation-delay: 0.4s;            animation-delay: 0.4s; }  .sk-cube-grid .sk-cube4 {    -webkit-animation-delay: 0.1s;            animation-delay: 0.1s; }  .sk-cube-grid .sk-cube5 {    -webkit-animation-delay: 0.2s;            animation-delay: 0.2s; }  .sk-cube-grid .sk-cube6 {    -webkit-animation-delay: 0.3s;            animation-delay: 0.3s; }  .sk-cube-grid .sk-cube7 {    -webkit-animation-delay: 0s;            animation-delay: 0s; }  .sk-cube-grid .sk-cube8 {    -webkit-animation-delay: 0.1s;            animation-delay: 0.1s; }  .sk-cube-grid .sk-cube9 {    -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);    }   }

解析:九个方块通过 grid布局,形成横向纵向分别三块,设置不同的延迟时间让它们做线性 3D 缩放运动。

HTML

  <div class="sk-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>

CSS

  .sk-fading-circle {    margin: 100px auto;    width: 40px;    height: 40px;    position: relative;  }    .sk-fading-circle .sk-circle {    width: 100%;    height: 100%;    position: absolute;    left: 0;    top: 0;  }    .sk-fading-circle .sk-circle:before {    content: '';    display: block;    margin: 0 auto;    width: 15%;    height: 15%;    background-color: #333;    border-radius: 100%;    -webkit-animation: sk-circleFadeDelay 1.2s infinite ease-in-out both;            animation: sk-circleFadeDelay 1.2s infinite ease-in-out both;  }  .sk-fading-circle .sk-circle2 {    -webkit-transform: rotate(30deg);        -ms-transform: rotate(30deg);            transform: rotate(30deg);  }  .sk-fading-circle .sk-circle3 {    -webkit-transform: rotate(60deg);        -ms-transform: rotate(60deg);            transform: rotate(60deg);  }  .sk-fading-circle .sk-circle4 {    -webkit-transform: rotate(90deg);        -ms-transform: rotate(90deg);            transform: rotate(90deg);  }  .sk-fading-circle .sk-circle5 {    -webkit-transform: rotate(120deg);        -ms-transform: rotate(120deg);            transform: rotate(120deg);  }  .sk-fading-circle .sk-circle6 {    -webkit-transform: rotate(150deg);        -ms-transform: rotate(150deg);            transform: rotate(150deg);  }  .sk-fading-circle .sk-circle7 {    -webkit-transform: rotate(180deg);        -ms-transform: rotate(180deg);            transform: rotate(180deg);  }  .sk-fading-circle .sk-circle8 {    -webkit-transform: rotate(210deg);        -ms-transform: rotate(210deg);            transform: rotate(210deg);  }  .sk-fading-circle .sk-circle9 {    -webkit-transform: rotate(240deg);        -ms-transform: rotate(240deg);            transform: rotate(240deg);  }  .sk-fading-circle .sk-circle10 {    -webkit-transform: rotate(270deg);        -ms-transform: rotate(270deg);            transform: rotate(270deg);  }  .sk-fading-circle .sk-circle11 {    -webkit-transform: rotate(300deg);        -ms-transform: rotate(300deg);            transform: rotate(300deg);   }  .sk-fading-circle .sk-circle12 {    -webkit-transform: rotate(330deg);        -ms-transform: rotate(330deg);            transform: rotate(330deg);   }  .sk-fading-circle .sk-circle2:before {    -webkit-animation-delay: -1.1s;            animation-delay: -1.1s;   }  .sk-fading-circle .sk-circle3:before {    -webkit-animation-delay: -1s;            animation-delay: -1s;   }  .sk-fading-circle .sk-circle4:before {    -webkit-animation-delay: -0.9s;            animation-delay: -0.9s;   }  .sk-fading-circle .sk-circle5:before {    -webkit-animation-delay: -0.8s;            animation-delay: -0.8s;   }  .sk-fading-circle .sk-circle6:before {    -webkit-animation-delay: -0.7s;            animation-delay: -0.7s;   }  .sk-fading-circle .sk-circle7:before {    -webkit-animation-delay: -0.6s;            animation-delay: -0.6s;   }  .sk-fading-circle .sk-circle8:before {    -webkit-animation-delay: -0.5s;            animation-delay: -0.5s;   }  .sk-fading-circle .sk-circle9:before {    -webkit-animation-delay: -0.4s;            animation-delay: -0.4s;  }  .sk-fading-circle .sk-circle10:before {    -webkit-animation-delay: -0.3s;            animation-delay: -0.3s;  }  .sk-fading-circle .sk-circle11:before {    -webkit-animation-delay: -0.2s;            animation-delay: -0.2s;  }  .sk-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; }   }

解析:加载动画由12个实色圆点360度依次摆开,依次做旋转和透明度的改变。

HTML

  <div class="sk-folding-cube">    <div class="sk-cube1 sk-cube"></div>    <div class="sk-cube2 sk-cube"></div>    <div class="sk-cube4 sk-cube"></div>    <div class="sk-cube3 sk-cube"></div>  </div>

CSS

  .sk-folding-cube {    margin: 20px auto;    width: 40px;    height: 40px;    position: relative;    -webkit-transform: rotateZ(45deg);            transform: rotateZ(45deg);  }    .sk-folding-cube .sk-cube {    float: left;    width: 50%;    height: 50%;    position: relative;    -webkit-transform: scale(1.1);        -ms-transform: scale(1.1);            transform: scale(1.1);   }  .sk-folding-cube .sk-cube:before {    content: '';    position: absolute;    top: 0;    left: 0;    width: 100%;    height: 100%;    background-color: #333;    -webkit-animation: sk-foldCubeAngle 2.4s infinite linear both;            animation: sk-foldCubeAngle 2.4s infinite linear both;    -webkit-transform-origin: 100% 100%;        -ms-transform-origin: 100% 100%;            transform-origin: 100% 100%;  }  .sk-folding-cube .sk-cube2 {    -webkit-transform: scale(1.1) rotateZ(90deg);            transform: scale(1.1) rotateZ(90deg);  }  .sk-folding-cube .sk-cube3 {    -webkit-transform: scale(1.1) rotateZ(180deg);            transform: scale(1.1) rotateZ(180deg);  }  .sk-folding-cube .sk-cube4 {    -webkit-transform: scale(1.1) rotateZ(270deg);            transform: scale(1.1) rotateZ(270deg);  }  .sk-folding-cube .sk-cube2:before {    -webkit-animation-delay: 0.3s;            animation-delay: 0.3s;  }  .sk-folding-cube .sk-cube3:before {    -webkit-animation-delay: 0.6s;            animation-delay: 0.6s;   }  .sk-folding-cube .sk-cube4:before {    -webkit-animation-delay: 0.9s;            animation-delay: 0.9s;  }  @-webkit-keyframes sk-foldCubeAngle {    0%, 10% {      -webkit-transform: perspective(140px) rotateX(-180deg);              transform: perspective(140px) rotateX(-180deg);      opacity: 0;     } 25%, 75% {      -webkit-transform: perspective(140px) rotateX(0deg);              transform: perspective(140px) rotateX(0deg);      opacity: 1;     } 90%, 100% {      -webkit-transform: perspective(140px) rotateY(180deg);              transform: perspective(140px) rotateY(180deg);      opacity: 0;     }   }    @keyframes sk-foldCubeAngle {    0%, 10% {      -webkit-transform: perspective(140px) rotateX(-180deg);              transform: perspective(140px) rotateX(-180deg);      opacity: 0;     } 25%, 75% {      -webkit-transform: perspective(140px) rotateX(0deg);              transform: perspective(140px) rotateX(0deg);      opacity: 1;     } 90%, 100% {      -webkit-transform: perspective(140px) rotateY(180deg);              transform: perspective(140px) rotateY(180deg);      opacity: 0;     }  }

解析:四个等边方块形成一个正方形,整个旋转45度,然后每个方块通过不同的延迟时间,沿X轴做翻转动画。设置perspective是为了有3D的效果。

结论:以上的这些案例原理都是通过不同的延迟时间,给元素或子元素设置包括X、Y和Z轴上的移动旋转,以及缩放来达到动画的效果。有了这些参考,加上创意还能做出更多的类型加载效果。

如果学习CSS 实现各种 Loading 效果附带解析过程没有解决您的问题,您还可以在CSS栏目中查看更多相关内容。

超赞,真给力!嗯,必须鼓励~

打赏 0
账号:mxy310@163.com[复制]
账号:77940140[复制]