mgn-tip

let tip = new mgnTip(
    ".j-tip",
    {
        fadeSpeed: 100
    }
);
tip.ShowEnd = function(){
    console.log("ShowEnd");
};

<div class="j-tip">
    <a class="j-tip_btn" data-direction="top">top</a>
    <div class="j-tip_detail">TOP</div>
</div>

.j-tip a {
	padding: 15px 40px;
	display: inline-block;
	background: #999;
	color: #FFF;
	line-height: 1;
	text-align: center;
	border-radius: 2px;
	text-decoration: none;
}
.j-tip_detail {
	padding: 8px 8px 7px;
	border: 1px solid #000;
	background: #FFF;
	border-radius: 2px;
	z-index: 10;
	line-height: 1;
}
.j-tip_detail:before {
	content: "";
	display: block;
	width: 0;
	height: 0;
	position: absolute;
}
.j-tip_detail.left:before {
	border-bottom: 4px solid transparent;
	border-left: 6px solid #000;
	border-top: 4px solid transparent;
	top: 50%;
	right: 0;
	margin: -4px -6px 0 0;
}
.j-tip_detail.top:before {
	border-top: 6px solid #000;
	border-left: 4px solid transparent;
	border-right: 4px solid transparent;
	bottom: -6px;
	left: 10px;
}
.j-tip_detail.right:before {
	border-bottom: 4px solid transparent;
	border-right: 6px solid #000;
	border-top: 4px solid transparent;
	top: 50%;
	left: 0;
	margin: -4px 0 0  -6px;
}
.j-tip_detail.bottom:before {
	border-bottom: 6px solid #000;
	border-left: 4px solid transparent;
	border-right: 4px solid transparent;
	top: -6px;
	left: 10px;
}