An #example of before #css pseudo-element : Background is not always applied on children

dabblet.css

a {
}
a:hover {	
	background-color: #F5F2F0;
}
a:before {	
	content: 'coco ';
}
a.absolute:before {	
	position: absolute;
	top: 50px;
}

dabblet.html

<a href="#">Bou</a><br>
<a href="#" class="absolute">Bou</a>

settings.json

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