Dear friends,
I would like to put a little secondary image to right to a main image. The secondary image is a little "next" link to continue the gallery. The secondary image (a little triangle) should stretch vertically without mantain proportions.
I was able to put images into a resizeable box, but I am not able to stretch the secondary image.
Thank you very much for support.

<div class="Container">
                <img src="" style="width:90%"/>
                <img src="" style="width:100%"/>