affect only on nested div when there are multiple divs with same class

affect only on nested div when there are multiple divs with same class

    Im trying to expand and collaps divs, which works. But when using the code below all divs with the class 'entry-content' are affected. Id like only the 'entry-content' div ,which is nested in the same div as the expand text, to be affected. There are 20 setups like this in the same page. 
    2. <div class="threecol project-container-color project-container">
    3. <p class="insp_title openIt">
    4.                                                      EXPAND</p>
    5. <div class="project_thumb">
    6. <?php the_post_thumbnail('large'); ?> 
    7. </div>
    8. <div class="entry-content">
    9. <?php the_content(); ?> 
    10. </div>
    11. </div>

    2. $(".entry-content").hide();

    4. $(".openIt").click(function() {
    5. $(".entry-content").slideToggle("fast");
    6. });