Cacher is the code snippet organizer for pro developers

<div class="wrapper">
    <div class="item">
        <img src="" alt="" />
    </div>
</div>

*{
    padding: 0;
    margin: 0;
    vertical-align: top;
}
html,
body{
    width: 100%;
    height: 100%;
}
.wrapper{
    overflow: hidden;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    font-size: 0;
    line-height: 0;
}
.item{
    width: 100%;
    height: 100%;
    vertical-align: middle;
    text-align: center;
    white-space: nowrap;
}
.item:after{
    content: '';
    display: inline-block;
    height: 100%;
    vertical-align: middle;
}
img{
    max-width: 100%;
    max-height: 100%;
    vertical-align: middle;
}