/* style-test.css */
.row {
position: relative;
display: inline-block;
}
.row h3 {
position: absolute;
margin: 0;
color: #FFF;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
img {
display: block;
margin-left: auto;
margin-right: auto;
}<!-- test.html -->
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="css/style-test.css">
</head>
<body>
<div class="row">
<div id="image">
<h3>image</h3>
<img src="img/no_picture_avatar.jpg" alt="image" style="width:200px;height:100px;">
</div>
</div>
</body>
</html>