how can I do that the mainmenu displayed open to default not collapsed, and instead collapses when I click the icon.
this is my mainnav
<!-- MAIN NAVIGATION -->
<nav id="t3-mainnav" class="wrap t3-mainnav navbar-fixed-top navbar-collapse-fixed-top">
<div class="container-menu navbar">
<div class="navbar-inner">
<button type="button" class="nav-trigger" data-toggle="collapse" data-target=".nav-collapse">
<i class="super-icon"></i>
</button>
<div class="nav-collapse collapse<?php echo $this->getParam('navigation_collapse_showsub', 1) ? ' always-show' : '' ?>">
<?php if ($this->getParam('navigation_type') == 'megamenu') : ?>
<jdoc:include type="megamenu" />
<?php else : ?>
<jdoc:include type="modules" name="<?php $this->_p('mainnav') ?>" style="raw" />
<?php endif ?>
</div>
</div>
</div>
</nav>
<!-- //MAIN NAVIGATION -->
sorry for my bad english