<body>
<div id="app">
<div class="content">
<h1>title</h1>
<h2>sub title</h2>
<p>article</p>
</div>
</div>
<div class="v-modal"></div>
</body>
* {
padding: 0;
margin: 0;
}
.content {
/* height: 80px; */
}
.content p {
background-color:blueviolet;
color: white;
z-index: 300;
width: 100%;
height: 50px;
line-height: 50px;
position: fixed;
text-align: center;
}
.v-modal {
z-index: 299;
position: fixed;
background-color: black;
opacity: .5;
height: 100%;
width: 100%;
top: 0;
}