There seems to be a minor issue with the height of the portfolio container divs at specific window widths. The problematic widths range from 1025 to 1041 and from 768 to 784. To visualize this, try resizing your browser window to these dimensions on the following live page: mrliger.com/index2.php
The jQuery attached to this div is responsible for adjusting its height dynamically. It's likely that this script is causing the height discrepancy rather than a media query:
$(window).resize(function() {
if ($(window).width() >= 1025) {
var cw = $(".portfoliocontainer").width() / 4;
$('.portfoliopod:not(.podexpanded)').height(cw);
}
if ($(window).width() <= 1024) {
var cw = $(".portfoliocontainer").width() / 3;
$('.portfoliopod:not(.podexpanded)').height(cw);
}
if ($(window).width() <= 767) {
var cw = $(".portfoliocontainer").width() / 2;
$('.portfoliopod:not(.podexpanded)').height(cw);
}
if ($(window).width() <= 400) {
var cw = $(".portfoliocontainer").width();
$('.portfoliopod:not(.podexpanded)').height(cw);
}
});