hi saltuarium, so sorry for not seeing this comment until now!
you can change the way images in the main section by looking for the bit in your style.css file that says:
section img {
width: 100%;
}
and change it to:
section img {
width: auto;
}
alternatively, if you only want to make specific images to not stretch out, you can add style="width: auto;" to the tag for the images in question. if they are 88x31px buttons though you could also set it to
style="width: 88px; height: 31px;" which… i think should work too?
i should actually add my button gallery styles to the template maybe… hmm
good luck with the coding and let me know if you need me to clarify anything!