openwrt_helloworld/luci-app-passwall/luasrc/view/passwall/cbi/hidevalue.htm

<div id="cbi-<%=self.config.."-"..section.."-"..self.option%>" data-index="<%=self.index%>" data-depends="<%=pcdata(self:deplist2json(section))%>" style="display: none !important">
	<input type="hidden" id="<%=cbid%>" value="<%=pcdata(self:cfgvalue(section) or self.default or "")%>" />
</div>