For example, 10px 20px will position the gradient 10 pixels from the left and 20 pixels from the upper left corner of the background positioning area. The following values are valid: length Gives a fixed length as the offset. Specifies where the center of the gradient should be located. Percentage values are only allowed on ellipses - not circles. Percentages values are relative to the corresponding dimension of the gradient box. The first value represents the horizontal radius, the second the vertical radius. Percentage values are not allowed on circles. If the shape is an ellipse, the ending shape is given the same aspect ratio it would have if farthest-side were specified. Same as closest-corner, except the ending shape is sized based on the farthest corner. If the shape is an ellipse, the ending shape is given the same aspect-ratio it would have if closest-side were specified. closest-corner The ending shape is sized so that that it passes through the corner of the gradient box closest to the gradient's center. farthest-side Same as closest-side, except the ending shape is sized based on the farthest side(s). If the shape is an ellipse, it exactly meets the closest side in each dimension. The following values are valid:Ĭlosest-side The ending shape is sized so that that it exactly meets the side of the gradient box closest to the gradient's center. size Specifies the size of the ending shape. The default value is circle if the is a single length, and ellipse otherwise. As indicated in the official syntax, the radial-gradient() function accepts the following values: shape The center of a radial gradient doesn’t have to be in the center! For example, you can position the center in the top left like this. Some of them do help a little with positioning (see “Expert” settings), but don’t expose all the possibilities. This is a beautiful gradient tool, but doesn’t help with positioning or sizing. They help you pick colors and color stops and stuff, but they usually punt on the positioning stuff. This is one of the shortcomings, I find, with gradient generators. Positionedīesides controlling the size and shape of the gradient, the other big trick to know with radial gradients is that you can position the center of them. See the Pen Lit text by Chris Coyier ( on CodePen. See the Pen Usage of Radial Gradients by Chris Coyier ( on CodePen. See the Pen Radial Gradient – Sizing by Chris Coyier ( on CodePen. Using color stops like radial-gradient(#56ab2f, #a8e063 150px).Explicitly saying like radial-gradient(circle 100px.Using a keyword closest-side, farthest-side, closest-corner, farthest-corner.You can also control the size by literally saying how large the circle/ellipse should be (the final color will still stretch to cover the element) by: If you don’t like that, you can force the shape into a circle, like the second example here demonstrates: That will stretch the gradient into an ellipse on a non-square element though. See the Pen Radial Gradient – Centered by Chris Coyier ( on CodePen. The simplest possible syntax places the first color in the center of the element and the second color on the outside and that’s that: I figured I’d put together a page of reference examples, so if you know what you need but forget the syntax, it’s easy to find that starter code example here. But it’s also not that easy to remember if you don’t use it often, and it’s more complicated than linear-gradient(). It’s certainly easier than needing to create a graphic in third-party software to use as the background, and the syntax is highly learnable. It’s amazing we can paint the background of an element with them so easily.
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