To create a CSS hover effect, write the element’s normal style and then a second rule using the same selector with :hover, such as .button:hover. Put any transition on the normal rule so the change animates both when the pointer arrives and when it leaves. Hover should add feedback—not be the only way to find or use essential content.
How CSS hover works
:hover is a user-action pseudo-class. It matches an element while a pointing device designates it; it does not click the element or perform an action on its own. The normal rule defines the resting appearance, and the :hover rule defines the pointer-state appearance. See the MDN reference for :hover.
Smallest complete button example
<button class="button">Save changes</button>.button {
background: #2457d6;
color: white;
transition: background-color 160ms ease;
}
.button:hover {
background: #173b98;
}
.button:focus-visible {
outline: 3px solid #111;
outline-offset: 3px;
}The base rule styles the button at rest. The hover rule changes its background while the pointer is over it. The transition belongs on the base rule; that way the change is gradual in both directions. :focus-visible supplies a separate visible focus cue, typically when a person is navigating with a keyboard.
Useful hover effect examples
Change a link’s color or underline
Color and decoration changes are simple ways to reinforce that a link is interactive. Keep links recognizable before hover, and retain a clear focus style for keyboard users.
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a {
color: #1455b8;
text-decoration: underline;
text-underline-offset: 0.15em;
transition: color 160ms ease;
}
a:hover {
color: #8a2d13;
}
a:focus-visible {
outline: 2px solid currentColor;
outline-offset: 3px;
}Reveal a restrained underline
A pseudo-element can animate an underline without changing the link’s layout. The link remains underlined at rest through its text decoration, so the interaction is not communicated only by hover.
.nav-link {
position: relative;
color: #173b98;
text-decoration: underline;
text-underline-offset: 0.2em;
}
.nav-link::after {
content: "";
position: absolute;
left: 0;
right: 0;
bottom: -0.25em;
height: 2px;
background: currentColor;
transform: scaleX(0);
transform-origin: left;
}
@media (prefers-reduced-motion: no-preference) {
.nav-link::after {
transition: transform 160ms ease;
}
.nav-link:hover::after,
.nav-link:focus-visible::after {
transform: scaleX(1);
}
}Add a shadow or slight lift
For cards and buttons, a modest shadow or small transform can signal interactivity. Prefer transforms to changing dimensions or margins, which can shift nearby content and make the page jump.
.card {
transform: none;
}
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
.card {
transition: transform 160ms ease, box-shadow 160ms ease;
}
.card:hover {
transform: translateY(-2px);
box-shadow: 0 8px 24px rgb(0 0 0 / 18%);
}
}Use an image overlay carefully
An overlay can add visual emphasis to an image, but do not put the only copy of a title, description, or action inside content that appears only on hover. Touch users may not have a convenient hover state. Keep essential information visible, or provide a persistent control such as a button that works by tap and keyboard.
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Get link states and transitions right
Use LVHA order for link states
When link-state selectors have equal specificity, write them in this order: :link, :visited, :hover, :active. The mnemonic is LVHA. A later rule with equal specificity can override an earlier one, so placing :hover after :active may prevent the active style from appearing as intended.
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a:link { color: #1455b8; }
a:visited { color: #6741a5; }
a:hover { color: #8a2d13; }
a:active { color: #b21f2d; }Transition only the properties you need
Declare a transition on the normal state and list the properties that should change. Avoid a blanket transition on every property: it can animate unrelated changes and make effects harder to control.
.button {
background-color: #2457d6;
transform: none;
transition: background-color 160ms ease, transform 160ms ease;
}
.button:hover {
background-color: #173b98;
transform: translateY(-1px);
}Make hover effects work for touch and keyboard
Do not hide required behavior behind hover
Touchscreens may not offer convenient hover, and browser behavior after a tap varies: hover may not match, may appear briefly, or may linger. MDN describes :hover as “problematic on touchscreens.” Treat hover as an enhancement, not a required step to reveal information or operate a control. See MDN’s documentation for the hover media feature.
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You can limit a pointer-only visual enhancement to devices whose primary input can conveniently hover:
@media (hover: hover) {
.card:hover {
box-shadow: 0 8px 24px rgb(0 0 0 / 18%);
}
}This query is a capability check for the primary input; it is not a replacement for a usable tap or keyboard interaction. If a card reveals a control or content, make that available in a persistent or explicitly activated way as well.
Provide visible keyboard focus
Hover styling does not apply when someone navigates by keyboard. Give interactive elements a visible focus treatment, for example with :focus-visible, rather than removing the browser outline without an equivalent. The MDN pseudo-classes reference covers :focus and :focus-visible; web.dev’s accessibility guidance also addresses keyboard focus and motion preferences.
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Respect reduced-motion settings
For movement effects, condition the transition on the user not requesting reduced motion. A simple alternative is no transform and no animated transition:
.card {
transform: none;
}
@media (prefers-reduced-motion: no-preference) {
.card {
transition: transform 160ms ease;
}
.card:hover {
transform: translateY(-2px);
}
}Check the effect before shipping
- Move a mouse or trackpad pointer over the element and confirm the intended state appears and clears when the pointer leaves.
- Tab through interactive elements and confirm each has a visible focus indicator; try the interaction with the keyboard rather than relying on hover.
- Use a touch-capable device or emulator. Essential content and actions should remain available without depending on a hover state.
- Check the design with reduced motion enabled. Motion should be optional, not required to understand the state change.
- Check that the effect does not resize or reposition nearby content unexpectedly.
Troubleshoot common CSS hover problems
The hover rule has no visible effect
Confirm the selector matches the element and that the changed property produces a visible difference. If another rule wins in the cascade, compare specificity and source order; inspect the computed style in the browser’s developer tools.
A link’s active color does not appear
For equal-specificity link state rules, use LVHA order. Also check whether a more specific selector or later stylesheet rule overrides the active style.
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The effect works with a mouse but not on a phone
That can be expected: touch hover behavior varies. Do not make the effect essential. Keep information visible or provide a tap-operable control, and use @media (hover: hover) only to scope optional hover decoration.
Nearby content jumps when the pointer arrives
A hover rule that changes width, height, padding, border thickness, or margins can alter layout. Reserve space in the base state or use a shadow or transform for visual emphasis without changing surrounding layout.
The animation feels excessive
Shorten or remove the transition, animate only the properties that need it, and honor prefers-reduced-motion for movement.
Or skip the browser setup
If you need a screenshot of a page showing its hover state, first make that state reproducible: CSS hover effects normally require a pointing device to designate the element, and the screenshot request alone is not a substitute for interaction. For ordinary page captures, ScreenshotNeo is a website screenshot API and MCP server. One GET request can return an image or PDF; its supported options include custom JavaScript and CSS.
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