Problem with menu

[rumen]

Just found the problem is in the CSS not in the PHP code.

[rumen]

Hi there I have problem with the Menu ... In the original HTML works fine, but after I put the PHP code - when the drop down goes over text become transparent and not clickable! What's wrong?

The error picture    and the original menu picture

Here is the site (still under construction)  http://yourblindsmalta.com

Here is the original HTML site https://w3layouts.com/preview/?l=/triplex-interior-category-flat-bootstrap-responsive-web-template/

Here is the code  the PHP and below the PHP is the original HTML code. Please help!

Code Select Expand

<?php 
$open = '<li class="[if(class=menu-current||class=menu-parent){active}] [if(class==menu-expand){dropdown}]">
[if(class==menu-expand){<a href="[url]" class="dropdown-toggle hvr-bounce-to-bottom" data-toggle="dropdown" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">[menu_title]<b class="caret"></b></a>}
else {<a href="[url]">[menu_title]</a>}]';


show_menu2(
$aMenu          = 0,
$aStart         = SM2_ROOT, 
$aMaxLevel      = SM2_CURR+1,
$aOptions       = SM2_ALL,
$aItemOpen      = $open,
$aItemClose     = '</li>',
$aMenuOpen      = '<ul class="[if(level==0){nav navbar-nav} else {dropdown-menu}]">',
$aMenuClose     = '</ul>',
$aTopItemOpen   = false,
$aTopMenuOpen   = false
);?>
    </div>
</div>
</nav>

<!-- <nav class="navbar navbar-default">
<div class="container">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">Menu
</button>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<!--<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li><a href="index.html" class="active">Home</a></li>
<li><a href="about.html">About</a></li>
<li><a href="codes.html">Codes</a></li>
<li><a href="#" class="dropdown-toggle hvr-bounce-to-bottom" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Gallery<span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a class="hvr-bounce-to-bottom" href="gallery1.html">Gallery1</a></li>
<li><a class="hvr-bounce-to-bottom" href="gallery2.html">Gallery2</a></li>
<li><a class="hvr-bounce-to-bottom" href="icons.html">Font Icons</a></li>     
</ul>
</li>
<li><a href="blog.html">Blog</a></li>
<li><a href="contact.html">Contact</a></li>
</ul>
<div class="clearfix"> </div>
</div>
</nav> -->