$(document).ready(function () {
    var all = $('ul.blog-articles li');
    var first = $('ul.blog-articles li:first');
    var odd = $('ul.blog-articles li:odd');
    var even = $('ul.blog-articles li:even');

    first.css({width: '630px'});
    var firstHeight = parseInt(first.height());

    var maxHeight = 0;
    $.each(all, function (i, val) {
        if ($(this).height() > parseInt(maxHeight)) maxHeight = parseInt($(this).height());
    });
    all.css({height: maxHeight + 'px'});
    odd.css({borderRight: '1px solid #fff', width: '290px', paddingRight: '20px'});
    even.css({width: '290px', paddingLeft: '20px'});
    first.css({height: firstHeight + 'px', width: '630px', padding: '10px'});
});