![]() The image should be CORS-same-origin, otherwise, it won't work, and the default value auto will be the value of the computed shape. If the shape-image-threshold is not specified, the initial value to be considered is 0.5. ![]() The shape is computed to be the path that encloses the area where the opacity of the specified image is greater than the shape-image-threshold value. You can learn more about each of these functions in this article by the Adobe Platform team.Īnd finally, if the value is set to an image URI, the browser will use the image to extract and compute the shape based on the image’s alpha channel. If the value is set to a shape function, then the shape is computed based on the values of one of ‘ inset’, ‘ circle’, ‘ ellipse’ or ‘ polygon’. (If you’re not familiar with the CSS box model, make sure you read up on it because you should know how it works). If the value is set to auto, the element’s float area uses the margin box as normal. Shape-* properties take one of three values: auto, a basic shape, or an image URI. Non-block-level elements should be forced to block if you want to use a shape property on them. The shape-* properties can also only be applied to block-level elements. At the time of writing of this article, the shape-outside property can be applied to floating elements only, and the shape-inside property isn't completely implemented, so you may still find bugs when u use it. In order to give an element a custom non-rectangular shape, the shape-inside and shape-outside properties are used. So, for the time being, this article will only show screenshots of how the demos work when shape-inside is implemented again.Īll HTML elements have a rectangular box model which governs the flow of content inside and around it. Most of this article's demos use the shape-inside property, which has been temporarily removed from Webkit and Blink. I've included screenshots of the demos so you can see how the final result looks like. You don't need a supporting browser to understand the features and demos, though. Check the current state of browser support for CSS Shapes out. If you want to see the working live demos you need to make sure you’re viewing them in a browser that supports these technologies. The CSS technologies we’ll be covering in this article may not work in your browser. When more CSS Shapes features are implemented, more complex and awesome layouts will be possible, but even with what we have at hand now, some interesting and very creative layouts can be created with a little extra experimentation. In this article we're going to go over the basics of declaring shapes, and creating some simple layouts using these new CSS technologies. With the introduction of CSS Shapes into the web, wrapping content in custom non-rectangular shapes, and recreating print designs and layouts on the web becomes a piece of cake! That is, if you create a triangle or a trapezoid with CSS, for example, the shape created does not define or affect the way the text inside it flows, or the way inline text around it does. Today we can create all kinds of shapes with CSS using CSS transforms, but all these shapes do not affect the flow of the content inside or around them. Combining CSS Shapes with Regions and Flexbox to create magazine layouts. ![]()
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