How to Eliminate Jagged Edges in Linear Gradient Triangles?

Smooth Out Jagged Edges in Background Image with Linear Gradient

When creating triangle-shaped effects at the bottom of an image using linear gradients, users often encounter jagged edges that detract from the smooth transition. To address this issue, we'll explore a solution that eliminates these jagged edges.

Background

The user attempted to form triangles at the base of an image using two linear gradients. Despite the responsiveness of this method, the edges of the triangles exhibited irregularities. The goal is to achieve a seamless, smooth transition in modern browsers.

Solution

The jagged edges in linear-gradient images arise when the color changes abruptly. To overcome this, we can avoid using the same stop point for different colors. Specifically, we can slightly shift the start point of the second color away from the stop point of the first. This creates a blurred area that makes the transition smoother.

Here's an improved version of the CSS code:

<code class="css">.lefttriangle {
  ...
  background-image: linear-gradient(to right top, #ffffff 48%, transparent 50%);
}

.righttriangle {
  ...
  background: linear-gradient(to left top, #ffffff 48%, transparent 50%);
}</code>

Improved Results

By adjusting the stop and start points of the linear gradients, the jagged edges disappear, resulting in a smooth transition from white to transparent. The triangle-shaped effect at the bottom of the image is achieved without compromising the overall visual appeal.

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