Removed colspan from vendor-specific attributes. See https://github.com/alexdunae/premailer/pull/75#issuecomment-2114272
Removed colspan from vendor-specific attributes. See https://github.com/alexdunae/premailer/pull/75#issuecomment-2114272

Guestfolio/premailer,academia-edu/premailer,PrecisionNutrition/premailer,thebeansgroup/premailer,r-shah/java-premailer-wrapper,will-in-wi/premailer,ale7714/premailer,danimashu/premailer,Guestfolio/premailer,ministrycentered/premailer,constantcontact/premailer,r-shah/java-premailer-wrapper,r-shah/java-premailer-wrapper,academia-edu/premailer,ale7714/premailer,ministrycentered/premailer,thebeansgroup/premailer,constantcontact/premailer,will-in-wi/premailer,danimashu/premailer,PrecisionNutrition/premailer