The sidebar on the left of the quotation previews was placed with
position fixed in a col-md-3. Position fixed elements have their
width computed according to the window dimensions which is why it
cannot be 100% to fit the col-md-3. To achieve that, the old solution
was to set the width in pixel according to the viewport dimension (and
the size a col-md-3 has in each of this dimension). This was too easily
breakable. Indeed in the avantgarde theme, the .container is set to
smaller dimensions. So the col-md-3 is smaller too and then the fixed
width sidebar overflows.
To achieve the desired behaviour, javascript is needed. In CSS, the
position is set to "relative" and the width to "100%" so that the
sidebar fits the col-md-3 width no matter what. Then on page load and
on window resize, the sidebar is set to position "fixed" and to a
px-based width which equals its current and default 100%-width.
qsm-odoo
566e0a2706