Div with a transparent cut out circle

css, css-shapes

Solution

In order to have the white cut out circle transparent and let the background show through it, you can use `box-shadows` on a pseudo element to minimize markup.

In the following demo, the blue color of the shape is set with the box shadow and not the `background-color` property.

DEMO

output:

This can also be responsive: demo

HTML:

<div></div>

CSS:

div {
  width: 300px;
  height: 300px;
  position: relative;
  overflow: hidden;
}

div::before {
  content: '';
  position: absolute;
  bottom: 50%;
  width: 100%;
  height: 100%;
  border-radius: 100%;
  box-shadow: 0px 300px 0px 300px #448CCB;
}

Problem

Can I make a rectagle `div` with a half cut out circle using CSS? The half circle should be transparent and let the background show through. desired CSS shape : HTML : ``` <div></div> ``` CSS : ``` div{ background : #448CCB; width:300px; height:300px; } ```

Original source

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