Outlook iOS
Engine: Outlook Mobile·mobile·Dark mode: Yes
CSS coverage profile for Outlook iOS
Outlook iOS renders with the Outlook Mobile engine and supports 150 of 251 tracked CSS and HTML features fully, with 16 partially supported and 85 unsupported. That places it in a moderate coverage band.
A meaningful portion of CSS is unsupported or partially supported. Plan fallbacks for layout-critical features and validate every template before send.
150
Supported
16
Partial
85
Unsupported
251
Total
HTML Elements40
| Feature | Support |
|---|---|
| <abbr> | Supported |
| <acronym> | Supported |
| <address> | Supported |
| <audio> | Unsupported |
| <base> | Partial |
| <bdi> | Unsupported |
| <blockquote> | Supported |
| <body> | Partial |
| <code> | Supported |
| <del> | Supported |
| <dfn> | Supported |
| <dialog> | Unsupported |
| <div> | Supported |
| <form> | Supported |
| <h1> | Supported |
| <hr> | Supported |
| <img> | Supported |
| <link> | Unsupported |
| <marquee> | Supported |
| <meter> | Supported |
| <object> | Unsupported |
| <p> | Supported |
| <picture> | Unsupported |
| <pre> | Supported |
| <progress> | Unsupported |
| <rp> | Supported |
| <rt> | Supported |
| <ruby> | Supported |
| <select> | Supported |
| <small> | Supported |
| <span> | Supported |
| <strike> | Supported |
| <strong> | Supported |
| <style> | Supported |
| <svg> | Unsupported |
| <table> | Supported |
| <textarea> | Supported |
| <ul> | Partial |
| <video> | Unsupported |
| <wbr> | Supported |
CSS At-Rules5
| Feature | Support |
|---|---|
| @font-face | Unsupported |
| @import | Unsupported |
| @keyframes | Unsupported |
| @media | Supported |
| @supports | Unsupported |
Pseudo-Elements6
| Feature | Support |
|---|---|
| ::after | Partial |
| ::before | Partial |
| ::first-letter | Partial |
| ::first-line | Partial |
| ::marker | Unsupported |
| ::placeholder | Partial |
Pseudo-Classes & Selectors32
| Feature | Support |
|---|---|
| :adjacent-sibling | Supported |
| :attribute-selector | Partial |
| :chaining | Supported |
| :checked | Partial |
| :child-combinator | Supported |
| :class-selector | Supported |
| :descendant-combinator | Supported |
| :first-child | Supported |
| :first-of-type | Supported |
| :focus | Unsupported |
| :general-sibling | Supported |
| :grouping | Supported |
| :has | Unsupported |
| :hover | Unsupported |
| :id-selector | Supported |
| :lang | Supported |
| :last-child | Supported |
| :last-of-type | Supported |
| :link | Supported |
| :not | Unsupported |
| :nth-child | Unsupported |
| :nth-last-child | Unsupported |
| :nth-of-type | Unsupported |
| :only-child | Supported |
| :only-of-type | Supported |
| :target | Supported |
| :type-selector | Supported |
| :universal-selector | Supported |
| :visited | Supported |
| pseudo-class-active | Unsupported |
| pseudo-class-default | Supported |
| pseudo-class-nth-last-of-type | Unsupported |
CSS Functions8
| Feature | Support |
|---|---|
| calc | Unsupported |
| clamp | Unsupported |
| conic-gradient | Unsupported |
| fit-content | Partial |
| linear-gradient | Unsupported |
| max | Unsupported |
| min | Unsupported |
| radial-gradient | Unsupported |
CSS Properties160
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Try Emailens FreeSupport data last updated Apr 27, 2026 · synced from caniemail.com via @emailens/engine.