Creating Smooth Edges for Linear Gradient Jagged Lines

In the pursuit of designing a responsive image with a pointed bottom formed by two triangles, the developer encountered unexpected jagged edges on the triangle lines. To resolve this issue, we explore strategies to produce a smoother gradient transition.

While hard-stopping the colors in a linear-gradient image often leads to jagged edges, adjusting the stop and start points can mitigate this problem. Instead of abruptly changing from one color to another, creating a blurred area by starting the second color slightly apart from the stop point of the first softens the transition, resulting in a smoother line.

Modifying the CSS code for the triangle classes:

.lefttriangle {
  background-image: linear-gradient(to right top, #ffffff 48%, transparent 50%);
}
.righttriangle {
  background: linear-gradient(to left top, #ffffff 48%, transparent 50%);
}

By changing the stop points to 48% instead of 50%, we create a slight overlap between the colors, eliminating the harsh edge and creating a smoother gradient.

Alternatively, if the exact placement of the color transitions is crucial, a different approach can be considered, such as using a radial gradient or implementing a custom JavaScript solution for a fully controlled gradient. However, the modified CSS code mentioned above should provide a noticeable improvement in most modern browsers.