I wanna post smtg similar:
for me the white back ground is to big sometimes:
Especially when i paste the shot into word
the image is not in line with the text (yes, i can modify this)
I think an back ground as i show with the red border above would be enought.
I think further, Thomas wants this back ground size to be "set-able".
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Edit:
i use here an other bg color since this side is white too