<div class="wrap">
<div id="app">
<img v-bind:src="imgSrc" v-bind:class="className">
</div>
</div>
.wrap {
width: 30%;
}
let app = new Vue({
el: "#app",
data: {
imgSrc:
"https://images.unsplash.com/photo-1529778873920-4da4926a72c2?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1576&q=80",
className: "img-fluid"
}
});