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How to Achieve a Consistent \'Background-Size: Cover\' Effect for and with Pure CSS?
How to Achieve a Consistent \'Background-Size: Cover\' Effect for and with Pure CSS?
Oct 30, 2024 pm 04:02 PM
and with Pure CSS?
" /> and
with Pure CSS?
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Cover Background Simulation for
Achieving a consistent "background-size: cover" effect for elements like
CSS Solution without Edge Cases:
Instead of relying on scripts, a CSS solution with no edge cases can be implemented using the following steps:
- Set the parent element to have overflow: hidden.
- Set the video or image element to height: 100%;.
- Calculate the width based on the aspect ratio (e.g., 100 * 16 / 9 for 16:9 videos).
- Set min-width: 100%; to prevent resizing smaller than the parent.
- Set min-height to ensure the height scales down proportionally.
Example:
<code class="css">.parent-element-to-video {
overflow: hidden;
}
video {
height: 100%;
width: 177.77777778vh; /* 100 * 16 / 9 */
min-width: 100%;
min-height: 56.25vw; /* 100 * 9 / 16 */
}</code>
Centered Video:
To center the video, use the following CSS:
<code class="css">.parent-element-to-video {
position: relative;
}
video {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}</code>The above is the detailed content of How to Achieve a Consistent \'Background-Size: Cover\' Effect for and with Pure CSS?. For more information, please follow other related articles on the PHP Chinese website!
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