fixed div overlaps scrollbar

Question

I have problem with fixed div placed in other div with scrollbar. It overlaps scrollbar. it happend under safari and ie 11. When i set z- index to lower than divs with scrollbar than fixed div is under it and it losses interaction (you cant click links etc).Also i tried to make fake fixed position setting it to absolute and with javaScript set "left" to "scrollLeft" div with scrollbar but i cant use this solution because it gives strange effects under Safari and IE10.

Here is code:

HTML

<div id="cont">
  <div class="spacer s2"></div>
  <div id="target" class="box2 blue">
     <a href="dfsdfsd">dsfsdf</a>
  </div>
</div>

CSS

#cont {
    width:100%;
    height:800px;
    overflow:hidden;
    overflow-x: scroll;
    z-index:0
}
#target {
    width:200px;
    height:800px;
    position:fixed;
    overflow:hidden;
    background-color:red;
    z-index:0
}
.spacer {
    width:3000px;
    height:1px;
    z-index:-1
}

And link to jsFiddle.

Please help me ive tried to find solution over 3 days

Thanks in advance

Answer 1

change Position from fixed to absolute

<div id="target" class="box2 blue" style="width: 200px; height: 800px; position: absolute; overflow: hidden; background-color: red; z-index:0">
    <a href="dfsdfsd">dsfsdf</a>
</div>