Question how to place the Operations-buttons next to the "List Operations" icon

When changing the standard templates of Jahia, I ran into the following
problem:

When I'm in the edit mode of a page, and I click onto a "List
Operations" icon (sometimes a "+"-icon), the small pop-up box with the
available operations for that icon (with add/update/...) is placed too
far to the right of that icon. When I look into the source code, I can
see that the positioning is relative to the element, and hard-coded (see
under: marked in red).

Is there a way to change these values?

 

Thanks in advance,

Stijn.

 

<li class="level_01" onmouseover="changeClassLevel01(this);"
onmouseout="restoreClassLevel01(this);">
Level1
  <a id="button_ContentContainerList_9_1_3_3_1511429307"
href="javascript:getActionMenu('/jahia', 'ContentContainerList', 9, 1,
3, 3, 'ContentContainerList_9_1_3_3_1511429307')"
onmouseover="buttonMouseover(event,
'ContentContainerList_9_1_3_3_1511429307')"><img
src="/img/actions/add.gif" alt="List operations" title="List operations"
border="0">
</a>
<div id="ContentContainerList_9_1_3_3_1511429307" class="menu"
style="left: 161px; top: 265px; visibility: hidden;">
</div>
</li>