我做的吸顶，滚动之后滚动的内容和吸顶内容重叠了，怎么控制？如图：

<view class=“head_view static_head” style=‘z-index: 1;{{fixTop<scrollTop ? “position: sticky; position: -webkit-sticky; position: -moz-sticky; position: -ms-sticky; position: -o-sticky; top: 0;”: “”}}’>

</view>

onShow: function () {

let self = this;

wx.createSelectorQuery().select(’.static_head’).boundingClientRect(function (rect) {

self.setData({

fixTop: rect.top,

})

}).exec()

},

onPageScroll: function (res) {

let self = this;

let top = res.scrollTop;

self.setData({

scrollTop: top

});

}