If you remove the rule
width:auto from .calibre2 and .calibre3 classes, and also add the desired dimensions to the html code as @Karelllen suggested, image gets resized:
.calibre2 {
height: auto;
max-height: 100%;
max-width: 100%;
width: auto;
margin: 0;
padding: 0;
and
PHP Code:
<img alt="" src="Pictures/10000000000001A300000258372F48E4.jpg"
width="219" height="300" class="calibre2"/>