Can anyone please direct us to documentation on the use of the Design menu choice when editing a content block. For example, we wish to increase the width of the eCommerce product textarea (class="ccm-input-textarea") in a few blocks, but need an example of how to use the "Set Block Styles: CSS" panel (if that's the correct way to do it...).

There is reference in this forum to a "Set block styles tutorial" but we couldn't find that either.