Blurring a section of a circular image using a combination of CSS and JavaScript

I'm trying to achieve a specific effect with my circular image and overlaying div. I want the overlaying div to only partially shade out the image based on a certain degree value. For example, if I specify 100 degrees, I only want 260 degrees of the circular section to be shaded by the semi-transparent overlay. Despite my efforts, I haven't been able to figure out how to accomplish this.

Below is the CSS code for the overlaying div:

.shade {
    position: absolute;
    text-align: center;
    width: 50px;
    height: 50px;
    border-radius: 100%;
    background-color:#ffffff;
    opacity: 0.4
}

Answer №1

Here is a great resource that may be helpful. It discusses creating CSS3 Pie Charts, but you might find some useful techniques to achieve your desired result using pure CSS.

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