$(document).on('mouseenter','.collapse-box .collapse-item .collapse-item-head',function () {
    let that = $(this);
    that.find("i").removeClass("el-icon-plus").addClass("el-icon-minus");
    var t = that.parent().find("[name='fade']");
    //console.log(t.text());
    t.stop().animate({ opacity: 1, height: '100%'},100)
    //t.addClass("isActive");

    that.parent().siblings().find("i").removeClass("el-icon-minus").addClass("el-icon-plus");
    that.parent().siblings().find("[name='fade']").stop().animate({opacity: 0, height: '0'},100)
})