XF 1.5 adding thread preview tooltip to sidebar "new posts" widget

[ungovernable]

I really love XenForo post preview tooltip when browsing a forum and hovering over a topic title. I'm trying to add the same feature to the sidebar widget. I managed to do this adding the tooltip code to the sidebar's links:

class="{xen:if $thread.hasPreview, PreviewTooltip}"
                    data-previewUrl="{xen:if $thread.hasPreview, {xen:link threads/preview, $thread}}"

However, the tooltip is too big when the browsers's width is shrunk:


Any idea how to fix this ?

 

[ungovernable]

Fixed !
Style proprety > Preview Tooltip
Set max-width: 400px instead of width:400px

But it would be better if there was a way to change the direction of the tooltip instead

 

[boeing747]

@ungovernable

Do you using widget framework?

Can you tell me that where I have to add that code? which template exactly?