gistfile1.html

<div class="reviews"data-chars="190" data-more="больше" data-less="скрыть">
  Lorem ipsum dolor sit amet, consectetur adipiscing elit.
  Vestibulum laoreet, nunc eget laoreet sagittis,
  quam ligula sodales orci, congue imperdiet eros tortor ac lectus.
  Duis eget nisl orci. Aliquam mattis purus non mauris
  blandit id luctus felis convallis.
  Integer varius egestas vestibulum.
  Nullam a dolor arcu, ac tempor elit. Donec.
</div>

gistfile2.css

a {
    color: #0254EB
}
a.morelink {
    text-decoration:none;
}
.morecontent span {
    display: none;
}

gistfile3.js

$(function() {
    var reviews = $('.reviews')
    var showChar = reviews.data('chars');
    var moretext = reviews.data('more');
    var lesstext = reviews.data('less');
    var ellipsestext = "...";
    reviews.each(function() {
        var content = $(this).html();
        if(content.length > showChar) {
            var c = content.substr(0, showChar);
            var h = content.substr(showChar-1, content.length - showChar);
            var html = c + '<span>' + ellipsestext + '</span><span class="morecontent"><span>' + h + '</span>&nbsp;<a href="" class="morelink">' + moretext + '</a></span>';
            $(this).html(html);
        }
    });
 
    $(".morelink").click(function(){
        if($(this).hasClass("less")) {
            $(this).removeClass("less");
            $(this).html(moretext).hide().fadeIn(300);
        } else {
            $(this).addClass("less");
            $(this).html(lesstext).hide().fadeIn(300);
        }
        $(this).parent().prev().toggle();
        $(this).prev().toggle();
        return false;
    });
});