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Can CSS Create Angled Corners and Clip Images While Maintaining a Visible Border?
Can CSS Create Angled Corners and Clip Images While Maintaining a Visible Border?
Nov 25, 2024 am 03:52 AM
CSS Angled Corner Creation and Image Clipping
Can CSS be leveraged to create a specific shape, entailing a 45-degree angled corner? Additionally, the requirement includes clipping an image within the shape, akin to employing a mask where the gray border remains visible.
Exploring the feasibility of this task strictly within CSS, it becomes apparent that maintaining the border poses challenges. Nevertheless, a solution has been devised utilizing the :before and :after pseudo-elements in conjunction with a parent container. Since :before and :after cannot be applied directly to an img tag, the following approach is adopted:
- Establish a border for the container element.
- Create a :before element to obstruct a corner and offset its positioning by -1px to conceal the border.
- Add a :after element with a slight offset from the :before element to generate the line inside the cutaway.
While this approach approximates the desired effect, it encounters an issue with the thickness of the 45-degree angled line. Here's the CSS code snippet:
.cutCorner {
position: relative;
background-color: blue;
border: 1px solid silver;
display: inline-block;
}
.cutCorner img {
display: block;
}
.cutCorner:before {
position: absolute;
left: -1px;
top: -1px;
content: "";
border-top: 70px solid silver;
border-right: 70px solid transparent;
}
.cutCorner:after {
position: absolute;
left: -2px;
top: -2px;
content: "";
border-top: 70px solid white;
border-right: 70px solid transparent;
}
And here's an HTML example:
<div class="cutCorner"> <img class="" src="https://www.google.co.uk/logos/doodles/2013/william-john-swainsons-224th-birthday-5655612935372800-hp.jpg" /> </div>
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