What Is the CSS Tooltip Generator?
Create pure CSS tooltips with customizable position, color, arrow direction, and animation. Generate tooltip styles without JavaScript dependencies.
Why Use This Tool?
Tooltips provide contextual information on hover or focus. This tool generates pure CSS tooltip implementations with proper positioning, arrows, and smooth fade/slide animations.
How to Use This CSS Tooltip Generator
- Enter your tooltip text — Type the message you want to display when users hover over the trigger element.
- Choose the position — Select top, bottom, left, or right placement relative to the trigger element.
- Style the tooltip — Customize background color, text color, font size, padding, border-radius, and arrow size.
- Set the trigger behavior — Configure whether the tooltip appears on hover, focus, or both (hover+focus for accessibility).
- Copy the CSS — Copy the HTML and CSS together; the tooltip works without JavaScript.
Tips and Best Practices
- → Always include the focus trigger. Tooltips that only appear on hover are inaccessible to keyboard users. The generator's default, Hover and keyboard focus, adds
:focus-visible alongside :hover.
- → Keep tooltip text short. Tooltips are for brief supplementary information — a few words to a short sentence. If you need more, use a popover or expandable section instead.
- → Add a small delay before showing. A 200–400ms delay prevents tooltips from flashing as users move the cursor across the page. The Show delay slider sets this with transition-delay.
- → Use aria-label for screen readers. The generated markup links the tooltip to its button with
aria-describedby, so screen readers announce it; keep that attribute and a unique id if you reuse the pattern.
Frequently Asked Questions
Are CSS-only tooltips accessible?
Partly. The generated tooltip is a real element linked to its trigger with aria-describedby, so screen readers announce it as the button's description, and it opens on keyboard focus as well as hover (unless you choose Hover only). What CSS alone cannot do is let users dismiss it with Escape without moving focus, which WCAG 2.2 success criterion 1.4.13 asks for; add a few lines of JavaScript that remove the is-open class on Escape if you need that.
How do I position tooltips correctly?
The trigger gets position: relative and the bubble position: absolute, placed on the side you choose with a gap of the arrow size plus 4 px and centred along that side. The tool does not flip the tooltip when it would leave the screen; leave room around the trigger or use a positioning library.
Should I use CSS tooltips or a JavaScript library?
CSS tooltips are fine for simple, static hints. For complex behaviors like dynamic positioning, overflow detection, or interactive content, use a library like Tippy.js or Floating UI.
How do CSS tooltips work?+
In this generator the tooltip text is a span with role="tooltip" inside the trigger button. It is hidden with opacity: 0 and visibility: hidden, and :hover, :focus-visible or an is-open class reveal it after the delay you set. Because it is real markup rather than a pseudo-element, screen readers can read it and you can style it like any element.
What does the copied code include?+
The trigger button with the tooltip inside it, and the CSS for the trigger, the bubble, the arrow, the show rules for your chosen trigger, the fade or slide transition with its delay, and a prefers-reduced-motion rule that turns the motion off. Pasted into a blank page it works as previewed: we tested all 4 positions with all 3 trigger modes.
When should I use a tooltip vs a popover?+
Use tooltips for brief, supplementary information that fits in one line or short sentence. Use popovers for longer content, interactive elements, or information that users need to read and reference. Tooltips disappear on mouse-out; popovers typically stay open until dismissed.
How do I add an arrow to a tooltip?+
Turn Arrow on and set its size. It is a ::after pseudo-element on the bubble using the border-triangle trick: a zero-size box with transparent borders and one coloured border, placed on the edge facing the trigger.
Do CSS tooltips work on touch devices?+
Not reliably. Touch screens have no hover, so a hover-triggered tooltip may only show after a tap, depending on the browser, and :focus-visible usually does not match a tap. For touch, show the information somewhere visible instead of relying on a tooltip.
Can I show HTML inside a CSS tooltip?+
Yes, because the tooltip is a span, not pseudo-element text: you can put bold text or icons inside it. Keep it non-interactive, though: the bubble ignores the pointer (pointer-events: none), so links or buttons inside it cannot be clicked; use a popover for interactive content.
Built by Derek Giordano · Part of Ultimate Design Tools
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