Hello,
1) Try using these settings.
Code:
<div class="popular_item hide_1100"><img src="images/popular1.jpg" alt="" />
<h5 class="highlight_font">Onclick Menu</h5>
Onclick menu for tablets and touchscreen devices. <a href="index.php/extensions/s5-flex-menu">Read More...</a>
<div style="clear: both;"> </div>
</div>
<div class="popular_item"><img src="images/popular2.jpg" alt="" />
<h5 class="highlight_font">Module Positions</h5>
Choose from dozens of module positions and styles. <a href="index.php/features-mainmenu-47/template-features/97-module-positions">Read More...</a>
<div style="clear: both;"> </div>
</div>
<div class="popular_item" style="margin-bottom: 0px; border: none;"><img src="images/popular3.jpg" alt="" style="margin-bottom: 0px;" />
<h5 class="highlight_font">Dropdown Panel</h5>
Organize your content with the built in dropdown. <a href="index.php/features-mainmenu-47/template-features/drop-down-panel">Read More...</a>
<div style="clear: both;"> </div>
</div>
2) custom_2 position with module class suffix of -underlined1