vant 解决tab切换插件标题样式自定义的问题

return h("div", {
   "attrs": {
    "role": "tab",
    "aria-selected": this.isActive
   },
   "class": [bem({
    active: this.isActive,
    disabled: this.disabled,
    complete: !this.ellipsis
   }), {
    "van-ellipsis": this.ellipsis
   }],
   "style": this.style,
   "on": {
    "click": this.onClick
   }
  }, [h("span", {
    "class": bem("text")
   }, [this.slots() || this.title, h(Info, {
    "attrs": {
     "dot": this.dot,
     "info": this.info
    }
   })])]);

[h("span", {
    "class": bem("text")
   }, [this.slots() || this.title, h(Info, {
    "attrs": {
     "dot": this.dot,
     "info": this.info
    }
   }),h("span","看情况修改")])]

.van-tabs__nav--line .van-tab .van-tab__text span{
  color:#cc0000 !important;
}