How do I create this inverted two layer border?

Question

Is there any way to make custom scoop border style in CSS or jQuery?

Like the image below:

Answer 1

You could do this using a single div with :after and :before :pseudo-elements and radial-gradients.

div {
  position: relative;
  width: 400px;
  height: 400px;
  background: -webkit-radial-gradient(top left, #ECECEC 3%, transparent 3%), -webkit-radial-gradient(bottom left, #ECECEC 3%, transparent 3%), -webkit-radial-gradient(top right, #ECECEC 3%, transparent 3%), -webkit-radial-gradient(bottom right, #ECECEC 3%, transparent 3%);
  background: -moz-radial-gradient(top left, #ECECEC 3%, transparent 3%), -moz-radial-gradient(bottom left, #ECECEC 3%, transparent 3%), -moz-radial-gradient(top right, #ECECEC 3%, transparent 3%), -moz-radial-gradient(bottom right, #ECECEC 3%, transparent 3%);
  background: radial-gradient(top left, #ECECEC 3%, transparent 3%), radial-gradient(bottom left, #ECECEC 3%, transparent 3%), radial-gradient(top right, #ECECEC 3%, transparent 3%), radial-gradient(bottom right, #ECECEC 3%, transparent 3%);
  margin: 0 auto;
  border: 40px solid #ECECEC;
  z-index: -1;
  padding: 30px;
}
div:after {
  position: absolute;
  content: '';
  width: 103%;
  height: 103%;
  left: -1.5%;
  top: -1.5%;
  background: -webkit-radial-gradient(top left, white 3%, transparent 3%), -webkit-radial-gradient(bottom left, white 3%, transparent 3%), -webkit-radial-gradient(top right, white 3%, transparent 3%), -webkit-radial-gradient(bottom right, white 3%, transparent 3%);
  background: -moz-radial-gradient(top left, white 3%, transparent 3%), -moz-radial-gradient(bottom left, white 3%, transparent 3%), -moz-radial-gradient(top right, white 3%, transparent 3%), -moz-radial-gradient(bottom right, white 3%, transparent 3%);
  background: radial-gradient(top left, white 3%, transparent 3%), radial-gradient(bottom left, white 3%, transparent 3%), radial-gradient(top right, white 3%, transparent 3%), radial-gradient(bottom right, white 3%, transparent 3%);
  border: 3px solid white;
  box-sizing: border-box;
  z-index: 0;
}
div:before {
  position: absolute;
  content: '';
  width: 106%;
  height: 106%;
  left: -3%;
  top: -3%;
  background: -webkit-radial-gradient(top left, #ECECEC 4%, transparent 4%), -webkit-radial-gradient(bottom left, #ECECEC 4%, transparent 4%), -webkit-radial-gradient(top right, #ECECEC 4%, transparent 4%), -moz-radial-gradient(bottom right, #ECECEC 4%, transparent 4%);
  background: -moz-radial-gradient(top left, #ECECEC 4%, transparent 4%), -moz-radial-gradient(bottom left, #ECECEC 4%, transparent 4%), -moz-radial-gradient(top right, #ECECEC 4%, transparent 4%), -moz-radial-gradient(bottom right, #ECECEC 4%, transparent 4%);
  background: radial-gradient(top left, #ECECEC 4%, transparent 4%), radial-gradient(bottom left, #ECECEC 4%, transparent 4%), radial-gradient(top right, #ECECEC 4%, transparent 4%), radial-gradient(bottom right, #ECECEC 4%, transparent 4%);
  z-index: 1;
}

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