Article Tags
Article Tags
How to create multiple animation sequences with CSS_split keyframes using animation
CSSanimation does not support automatic concatenation of keyframes. Multiple animations need to be triggered through multiple independent animation declarations with animation-delay, and set fill-mode to forwards to maintain state.
Apr 03, 2026 pm 03:33 PM
How to set padding within elements in CSS_Use padding correctly to avoid layout misalignment
Percent padding is always based on the width of the parent container and has nothing to do with its own size; box-sizing:border-box does not change the padding calculation logic; the abbreviated missing value will be reused clockwise; when emptying elements, pay attention to the min-height limit of the parent container.
Apr 03, 2026 pm 03:30 PM
How to achieve horizontal centering and absolute positioning of elements in CSS_using left:50% and offset
left:50% only moves the left edge of the element to the midpoint of the parent container, resulting in a right deviation; it needs to be combined with negative margin or transform to offset its own width and height: use the negative half value of margin-left for known widths, and transform:translateX(-50%) for unknown widths. Compatibility with old IE requires JS calculation.
Apr 03, 2026 pm 03:27 PM
CSS handles the blank space at the bottom of floating list items_set display block floating
The extra blank space at the bottom of the floating list item is because the float is separated from the document flow, and the height is still calculated according to the baseline alignment rules of the inline formatting context (IFC), leaving x-height or line-height space. The solution requires changing the parent container formatting context (such as overflow:hidden, display:flex) or clearing the float, rather than modifying the display.
Apr 03, 2026 pm 03:24 PM
How CSS fixes the flexible layout line wrapping bug under IE_by adding a flex-basis percentage limit
The main reason why flex-wrap:wrap line wrapping fails in IE11 is that flex-basis:auto or 0% causes the line wrapping judgment to fail. You should explicitly set the percentage flex-basis (such as 33.33%), cooperate with box-sizing: border-box, and repeat the statement in the media query to ensure the correct response.
Apr 03, 2026 pm 03:21 PM
How CSS uses the box model to achieve segmentation_use margin to control block spacing
Margin cannot double the spacing between adjacent block-level elements, because the vertical margin will collapse to a larger value instead of adding together; solutions include uniformly clearing margin-bottom last-child, or using Flexgap instead.
Apr 03, 2026 pm 03:18 PM
How to implement CSS to cover the background video in full screen_cooperate with object-fit to cover the container
The video element needs to set display:block, object-fit:cover, position:fixed, top:0, left:0, z-index:-1, pointer-events:none, and add muted, autoplay, playsinline attributes, preload="metadata", priority is given to .mp4 format, and poster cover image.
Apr 03, 2026 pm 03:15 PM
How to implement variations in CSS component styles_Use Sass's @mixin to pass parameters to achieve multiple appearances
Use @mixin to define button variants with default values (such as $bg, $radius, $size), and only pass the parameters that need to be overridden when calling; extract the public style to the base class, and the variant only writes the difference attributes to avoid repeated output and volume expansion.
Apr 03, 2026 pm 03:12 PM
How CSS Grid Layout Solve Image Stretching and Deformation_Use object-fit: cover
The picture in the Grid is stretched because the default width and height of img are adaptive and priority is given to keeping the width. It should be used in conjunction with object-fit:cover and explicit height, and use object-position to adjust the cropping position.
Apr 03, 2026 pm 03:09 PM
How CSS projects standardize the naming system_Use the BEM framework to establish naming guidelines
BEM's block__element--modifier structure cannot be changed randomly, because its core is to ensure low-risk style scope decoupling and DOM reconstruction: double underscores indicate strong ownership, and dash modifiers must be attached to the main body. Violation will destroy the semantic hierarchy, lead to conflicts or invalidity.
Apr 03, 2026 pm 03:06 PM
How to use the warning function of Sass to standardize CSS development_Use @warn to prompt irregular writing methods
@warn is often ignored in Sass because it does not output by default and the build tool easily swallows warnings; it needs to be explicitly enabled (such as CLI plus --warn), configure the build link exposure, and reasonably distinguish @warn (reminder) and @error (interruption) to avoid abuse and repeated triggering.
Apr 03, 2026 pm 03:03 PM
How to implement list drag and drop sorting animation with CSS_Using transition assistance
The order attribute should be used in conjunction with flex layout to achieve smooth drag-and-drop sorting animation, because it supports transition, has correct semantics, and the DOM order is consistent with the vision; avoid using transform or top/left, as it will cause frame drops, abnormal positioning, and accessibility problems.
Apr 03, 2026 pm 03:00 PM
How to implement gradient background color in CSS_Master the usage of linear-gradient function
The linear-gradient function needs to carry the to keyword to specify the direction. The color stops must be sequentially increasing and the units must be legal. It is recommended to use rgba() to control transparency and set background-colorfallback.
Apr 03, 2026 pm 02:57 PM
How to achieve right alignment of the last item in CSS Flex layout_Using the clever application of margin-left: auto
It works, but the conditions must be met: the container is flex-direction:row and justify-content is not set or set to flex-start. The last item must be a real child element and there are no interfering nodes in front of it.
Apr 03, 2026 pm 02:54 PM
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