


How to Create a Transparent Curved Shape with Rounded Sides Using CSS Radial-gradient?
CSS Transparent Curved Shape with Two Rounded Sides
Creating a curved, transparent shape can be a challenge, especially when you want to have rounded sides. In this article, we will explore a solution using radial-gradient.
Initial Attempt
Initially, you attempted to create a curved shape using a combination of absolute positioning and a curved border radius. However, the background remained opaque, preventing the blue background color from showing through.
Solution Using Radial-gradient
A better solution is to use radial-gradient to create the illusion of a transparent, curved shape. Radial-gradient allows you to define a gradient that starts from a specific point and radiates outward.
The CSS:
.box { width: 200px; height: 100px; background: white; } .box .top { height: 100px; width: 150px; transform: translateY(-100%); background: #fff; position: relative; } .top:before, .top:after { content: ""; position: absolute; top: 0; width: 50px; left: 100%; bottom: 50%; background: radial-gradient(100% 50% at top left, #fff 98%, transparent 100%) right, radial-gradient(100% 50% at bottom right, transparent 98%, #fff 100%) left; background-size: 50% 100%; background-repeat: no-repeat; } .top:after { transform-origin: bottom; transform: scaleY(-1); }
Explanation
The .box element serves as the container for the curved shape. Within it, the .top element is positioned absolutely and translated upwards (-100%) to create the shape.
The .top element has two pseudo-elements (::before and ::after) that create the curved effect using radial-gradient. These pseudo-elements are positioned at the top-left and bottom-right corners of the .top element, with a width of 50px.
The radial-gradients are defined to start from the top-left and bottom-right corners, respectively. The first gradient creates a white (opaque) section on the right, fading into transparent 2% above the bottom edge. The second gradient does the opposite, creating a transparent section on the left and a white section at the bottom.
By combining these gradients, the illusion of a transparent, curved shape is created.
The above is the detailed content of How to Create a Transparent Curved Shape with Rounded Sides Using CSS Radial-gradient?. For more information, please follow other related articles on the PHP Chinese website!

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