Untitled

dabblet.css

body
{
	background: pink
}

.popup
{
	position: relative;
	
	width: 200px;
	height: 150px;
	padding: 10px;
	
	background: #fff;
	background-clip: padding-box;	
	box-shadow: 0 0 0 5px rgba(0,0,0,0.6);
}

.popup:before,
.popup:after {
	content: "";

	position: absolute;
	left: 100%;
	top: 15px;

	width: 24px;
	height: 24px;
	
	margin: 0 0 0 -13px;

	background: linear-gradient(45deg,transparent 50%,white 50%);
	transform: rotate(45deg) translate(0.5px);
}

.popup:before {
	margin: 0 0 0 -7px;
	background: linear-gradient(45deg,transparent 50%,rgba(0,0,0,0.6) 50%);
}

dabblet.html

<div class="popup">
	контент
</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"split-vertical","fontsize":"100","seethrough":"","prefixfree":"1","page":"all"}