.upFiles{width:100px;height:100px;border-radius:5px;border:1px solid #dcdfe6;position:relative;overflow:hidden;display:inline-block}.upFiles .upload-demo{position:absolute;left:0;top:0;z-index:20;opacity:0}.upFiles .el-upload .el-button--primary,.upFiles .upload-demo,.upFiles .upload-demo .el-upload{width:100%;height:100%}.upFiles .el-icon-plus{color:#dcdfe6;font-size:30px;position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}.image-box{position:relative;display:inline-block;height:auto}.image-box .image-exchange{display:none;position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.4);color:#fff;transition:display .3s ease-in-out}.image-box .image-exchange i{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:24px}.image-box:hover .image-exchange{display:block}