Centered image

A way to center an image in a box

by rulokc

HTML

<div class="container">
    <img src="http://lorempixel.com/500/200/nature/1"/>
</div>
Resize the window

CSS

html, body {
    height: 100%;
}
.container {
    width: 100%;
    max-width: 500px;
    height: 80%;
    max-height: 200px;
    margin: 0 auto;
    overflow: hidden;
    position: relative;
}
.container img {
    display: block;
    position: absolute;
    top: calc((100% - 200px) / 2);
    left: calc((100% - 500px) / 2);
}