:hover pseudo-class applies styles when the mouse hovers over an element and is used to create visual effects and interactivity. Common functions include: changing color, adding borders, showing hidden content and triggering animations.
:hover in CSS
The :hover pseudo-class in CSS is used to create a function when the mouse hovers over Applies styles when placed on an element. It allows website designers to create visual effects and interactivity as users interact with web pages.
Usage:
:hover pseudo-class is used to select elements that hover over specific elements in CSS style sheets. The syntax is as follows:
选择器:hover { 样式声明; }
Where:
-
The selector
specifies the element to which the style is to be applied. -
Style declaration
Defines the style to be applied when the mouse is hovering over the element.
Example:
The following code will make the background of an element hovering over an element with class "button" blue:
.button:hover { background-color: blue; }
Function:
:hover pseudo-class can be used as interactive feedback, display hidden information or create dynamic effects. It is commonly used to:
- Change the color or background of a hovered element.
- Add or remove borders or shadows.
- Show hidden content, such as hints or tooltips.
- Trigger animation or visual effects.
Compatibility:
: The hover pseudo-class is widely supported in all major browsers.
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