CSS of Container

Getting help Questions
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1

Hi,
in my installation I see double scrollbars. Which CSS properties (overflow?, height?) I have to set? an other observation: after vertical scrolling the header disappears.

<div id="lightbox">
        <div id="lightbox-content" style="????">
            <span id="close-btn">&times;</span>
            <div id="handsontable" style="width:1660px;height:auto; overflow: auto;" class="handsontable"></div>
        </div>
    </div>
2

Hi @Knoeterich

Can you please share a code demo where the issue can be replicated? It will be easier to review the problem this way.