CSS and Email, Kissing in a Tree: A List Apart Most people who%u2019ve attempted to recreate a sophisticated design in HTML email have run into a wall when using CSS, either in the form of inexplicable mangling by email clients or a pronouncement by an email administrator stating that CSS is %u201Caga Learn how to use CSS and valid HTML to style emails that work with a range of email clients. cssemailhtmlstylewebmail in Public bookmarkswith cssemailinglesby 3 users