<style>
.mycasebody{
width:336px;
height:190px;
overflow:hidden;
display: table-cell;

vertical-align:middle;

text-align:center;
}

.mycasepic{
vertical-align:middle;

max-width:100%;

max-height:100%;

width:auto;

height:auto;
}

</style>

<div class=”mycasebody”>
<img src=”” class=”mycasepic” >
</div>