Full page image background using Bulma.io?
Read this http://bulma.io/documentation/layout/hero/ or try custom
//In HTML Section you need to create a class name Ex. bg-imge
<div class="bg-img">
</div>
//in custom CSS you need to add
.bg-img {
background-image: url(demo.jpg) ;
background-position: center center;
background-repeat: no-repeat;
background-attachment: fixed;
background-size: cover;
background-color: #999;
}
// [.img-responsive is custom class in bootstrap]
// You can use custom class like
.img-responsive {
display: block;
max-width: 100%;
height: auto;
}
//which you can put in your html Img part
<img class="img-responsive" src="demo.jpg"/>
//in bulma.io [i'm not sure] but For single image you can use this.
//It will auto responsive.
<div class="tile ">
<figure class="image">
<img src="demo.jpg">
</figure>
</div>
read http://bulma.io/documentation/elements/image/ here you will find bulma.io img responsive section