Creating a see-through circle going in the opposite direction with CSS

Can someone assist me with making a section on color background transparent using CSS? Below is an example of the background I'm trying to achieve:

I haven't attempted anything yet because I am unsure how to do it. If I place it as a div within a div and type the following in the CSS:

.Xclass{ background: transparent; }

It still displays a white background. Can anyone provide guidance on how to achieve this?

Answer №1

jsFiddle example

  • Create a rectangle with hidden overflow and transparent background.
  • Inside the rectangle, add a round shape with a large box-shadow spread radius

#picture{
  position:relative;
  margin:0 auto;
  background: url(http://i.imgur.com/gVcxX9C.png);
  height:500px;
  width:600px;
}
#container{
  position:absolute;
  left:300px;
  top:200px;
  width:200px;
  height:250px;
  overflow:hidden; /* to enclose #circle's shadow */
}
#oval{
  position:relative;
  margin:30px auto;
  width: 150px;
  height:150px;
  box-shadow: 0 0 0 100px #fff; /* !!! */
  border-radius:50%;
}
<div id="picture">
    <div id="container"><div id="oval"></div></div>
  </div>

Answer №2

Experiment with

.Yclass {
  opacity: 0.6;
}

or

.Yclass {
 background-color: rgba(25,25,25,0.6);
}

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