<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<style>
*{
margin: 0;
padding: 0;
}
.test{
height: 400px;
width: 600px;
border: 1px solid;
text-align: center;
margin: 10px auto;
}
.test:after{
display: inline-block;
content: "";
height: 100%;
width: 0;
background: #1E9FFF;
vertical-align: middle;
}
.image{
width: 150px;
vertical-align: middle;
}
</style>
<body>
<div class="test">
<img src="../img/guass1.jpg" alt="" class="image">
</div>
</body>
</html>