Email CSS refers to the subset of CSS that is supported by email clients. Unlike web CSS, email CSS must be written conservatively to ensure consistent rendering.
How Email CSS Differs From Web CSS
Many properties and selectors are not supported in email clients. This is why email CSS often relies on inline CSS and safe typography choices like web safe fonts with fallback fonts.
Designing With Constraints
Effective email CSS prioritizes readability and accessibility. Proper color contrast ensures text remains legible across devices and settings.
Testing and Validation
CSS should always be tested across clients and devices to catch unsupported properties early.
Email CSS and Topol
Topol applies proven email CSS patterns automatically, helping teams avoid common rendering issues. Learn more at Topol or sign up at Topol signup.