#loading{bottom:0;left:0;position:fixed;right:0;top:0;z-index:9999;background-color:#f4f5f5;pointer-events:none;}.loader-inner{will-change:transform;width:40px;height:40px;position:absolute;top:50%;left:50%;margin:-20px 0 0 -20px;background-color:#3742fa;border-radius:50%;animation:scaleout 0.6s infinite ease-in-out forwards;text-indent:-99999px;z-index:999991;}@keyframes scaleout{0%{transform:scale(0);opacity:0;}40%{opacity:1;}100%{transform:scale(1);opacity:0;}}
#mainContent img
{
    z-index: 1000; //设置为最顶层，以免左侧导航栏遮挡
    position: relative;
    cursor: pointer;//鼠标样式：手势
    transition: all 1.2s; //放大的时间：1.2s
}
#mainContent img:hover {
    transform: scale(1.4); //放大倍数：1.4倍
}