Untitled

dabblet.css

body
{
	background: pink
}

.popup
{
	position: relative;
	
	width: 200px;
	height: 150px;
	padding: 10px;

	
	background-color: #fff;
}

.popup:before
{
	position: absolute;
	z-index: -1;
	left: -5px;
	top: -5px;
	bottom: -5px;
	right: -5px;
	
	background: rgba(0,0,0,0.5);
	
	content: '';
}

.popup:after
{
	aposition: absolute;
	top: 17px;
	left: 100%;
	
	width: 5px;
	height: 21px;
	
	background: #fff;
	
	content: '';
}

.tail
{
	position: absolute;
	left: 100%;
	top: 10px;
	
	width: 35px;
	height: 35px;	

}
.tail:before,
.tail:after
{
	position: absolute;

	top: 5px;
	left: -12px;

	width: 25px;
	height: 25px;

	background: #fff;
	transform: rotate(45deg);	
	background-clip: padding-box;
	border: 5px solid rgba(0,0,0,0.6);
	border-left: 0;
	border-bottom: 0;

		
	content: '';
}

.tail:before
{
	background: red;
	border-color: red;
	background-clip: border-box;	
}

dabblet.html

<div class="popup">
	<div class="tail">
	</div>
	контент
</div>

dabblet.js

// alert('Hello world!');

settings.json

{"view":"separate","fontsize":"100","seethrough":"","prefixfree":"1","page":"all"}