What is the best way to create a transparent effect over a solid color using CSS in the following situation?

I have been using the spinner on this website "". Specifically, I am referring to the third one in the first row. When I apply it to my system, a solid color appears in the center of the circle. However, I want to make it transparent, but when I attempt to do so, the white circle becomes distorted. What I am aiming for is to achieve transparency in the solid background within the torus and to conceal the color within it. Can anyone provide assistance with this? Thank you very much.

Answer №1

Presented here is a unique design featuring a half donut with a fading effect from opaque to transparent on one side.

body {
    background-color: lightblue;
}
.donut {
    width: 240px;
    height: 240px;
    overflow: hidden;
    position: absolute;
    border-radius: 50%;
}

.donut:before {
    content: "";
    position: absolute;
    width: 160px;
    height: 160px;
    left: 0px;
    border: solid 40px red;
    border-radius: 50%;
    border-left-color: transparent;
    border-bottom-color: transparent;
   
}

.donut:after {
    content: "";
    position: absolute;
    width: 160px;
    height: 160px;
    left: 40px;
    top: 40px;
    border-radius: 50%;
    box-shadow: 118px 30px 120px 40px red;
}
<div class="donut"></div>

The main element serves to clip the design into a circular shape.

Utilizing pseudo-elements, one creates the solid half circle through borders.

Another pseudo-element uses a shadow effect to achieve the fading red appearance. The setup ensures the shadow is clipped by the inner circle, providing a seamless visual effect.

Answer №2

The website you referenced has a unique design featuring a solid color in the center of the circle. To replicate this effect, you simply need to match the background color of the circle with the overall background color of the website. This can be achieved by adjusting the CSS code for the inner circle element, as evidenced in the provided link.

Upon inspecting the element in the link, you will discover the specific selector used for the inner circle, which in this case is .load3 .loader:after. Changing the background color of this selector to transparent will alter the appearance of the loader, revealing that it is actually a quadrant shape rather than a complete circle.

To fully understand this concept, it is recommended to experiment with the CSS properties yourself. Modify the background property of .load3 .loader:after to background: transparent using the inspect element tool, and witness the visual impact of this change firsthand.

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