原生js和css写一个常用的loading

效果如下 :



代码如下 : 

    <div id="lading-body"><div class="spinner"><div class="rect1"></div><div class="rect2"></div><div class="rect3"></div><div class="rect4"></div><div class="rect5"></div></div></div>

#lading-body{width: 100%;height: 100%;display: flex;justify-content: center;align-items: center;
}
.spinner {margin: 100px auto;width: 200px;height: 100px;text-align: center;font-size: 10px;
}.spinner>div {background-color: var(--main-bg);height: 100%;width: 10px;display: inline-block;margin:0 5px;-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);}
}/* 滚动条样式 */
::-webkit-scrollbar {width: 7px;
}::-webkit-scrollbar-thumb {border-radius: 10px;background: rgba(0, 0, 0, 0.2);
}::-webkit-scrollbar-track {border-radius: 0;background: rgba(0, 0, 0, 0.1);
}