目前，导航设置为767px断点，我不确定如何将其更改为900px的断点。它说的是导航开始的位置，并且它正在使用引导程序来调整导航大小
下面是显示菜单的代码，我尝试了其他方法，但是它不起作用，如果您需要对代码进行任何编辑，请告诉我
感谢您的帮助！
<html>
<head>
<meta name="viewport" content="width=device-width , initial-scale=1" />
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
</head>
<body>
<div class="quick-access" id="quick-access" >
<div class="checkout-link"><?php echo $this->getChildHtml('checkoutLinks') ?></div>
<?php echo $this->getChildHtml('topCart') ?>
<?php echo $this->getChildHtml('CustomerLinks') ?>
</div>
<!-- navbar -->
<nav class="navbar navbar-default" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
<span id="menu_text">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</span>
</button>
</div>
<div class="collapse navbar-collapse" id="myNavbar">
<ul class="nav navbar-nav nav-collapsing top" id="htmTools">
<!-- static block: nav_before_products, Home -->
<li><a href="#"> <?php
$nav_before_products = $this->getLayout()->createBlock('cms/block')->setBlockId('nav_before_products')->toHtml();
if ($nav_before_products){
echo $nav_before_products;
}
?></a></li>
<!--Show Catorgories if Customer is Logged in -->
<?php if((Mage::helper('customer')->isLoggedIn())){ ?>
<?php foreach($categories as $category): ?>
<?php $category = Mage::getModel('catalog/category')->load($category->getId()) ?>
<?php $subcategories = $category->getChildrenCategories() ?>
<li class="<?php if (count($subcategories) > 0){ echo 'magento_backend_catorgories_drop';} else { echo 'magento_backend_catorgories';} ?>" >
<?php if (count($subcategories) > 0) { ?>
<i id="dropdown-icon1" class="glyphicon glyphicon-chevron-down"></i>
<?php } ?>
<a href="<?php echo $helper->getCategoryUrl($category) ?>" title="Navigate to <?php echo $category->getName() ?>"><?php echo $category->getName() ?></a>
<?php if (count($subcategories) > 0): ?>
<div class="row dd_cont" id="ddcontimportant" style="z-index: 9999; left: 0px !important;">
<ul class="multi-column-dropdown" style="padding:30px !important;">
<?php foreach($subcategories as $subcategory):
$col = Mage::getModel('enterprise_catalogpermissions/permission')->getCollection()
->addFieldToFilter('category_id', $subcategory->getId())
->addFieldToFilter('customer_group_id', Mage::getSingleton('customer/session')->getCustomer()->getGroupId())
->addFieldToFilter('grant_catalog_category_view', Enterprise_CatalogPermissions_Model_Permission::PERMISSION_DENY);
if (sizeof($col)) continue; ?>
<li class="dropdown-submenu">
<a style="padding: 10px !important;" class="listheader dropdown-toggle" href="<?php echo $helper->getCategoryUrl($subcategory) ?>"><?php echo $subcategory->getName() ?></a>
<?php $subcategory = Mage::getModel('catalog/category')->load($subcategory->getId()) ?>
<?php $subsubcategories = $subcategory->getChildrenCategories() ?>
<?php if (count($subsubcategories) > 0): ?>
<ul class="subsubcat">
<?php foreach($subsubcategories as $subsubcategory):
$col = Mage::getModel('enterprise_catalogpermissions/permission')->getCollection()
->addFieldToFilter('category_id', $subsubcategory->getId())
->addFieldToFilter('customer_group_id', Mage::getSingleton('customer/session')->getCustomer()->getGroupId())
->addFieldToFilter('grant_catalog_category_view', Enterprise_CatalogPermissions_Model_Permission::PERMISSION_DENY);
if (sizeof($col)) continue;?>
<li>
<a href="<?php echo $helper->getCategoryUrl($subsubcategory) ?>"><?php echo $subsubcategory->getName() ?></a>
</li>
<?php endforeach; ?>
</ul>
<?php endif; ?>
</li>
<?php endforeach; ?>
</ul>
</div>
<?php endif; ?>
<?php
if(in_array($category->getId(), $catProList)){
$parray = array();
foreach($catProList as $pid=>$cat){
if($cat == $category->getId()){
$parray[] = $pid;
}
}
echo $layout->getBlock('services_toplink')->setProgramId($parray)->toHtml();
}?>
</li>
<?php endforeach; ?>
<?php } ?>
<li class="dropdown-submenu" id="dropdownmenu">
<a class="dropdown-toggle" data-toggle="dropdown" href="#"><i style="color: #B40000 !important;font-size: 12px; padding-right: 10px; text-transform: uppercase;" class="fas fa-user-alt"></i><b style="color: #B40000 !important; text-transform: uppercase !important; font-size: 12px;">My Account</b><i style="color: #B40000 !important;" id="dropdown-icon" class="glyphicon glyphicon-chevron-down"></i></a>
<ul style="width: 250px !important;" class="dropdown-menu dropdown-menu-left" >
<div class="row">
<div class="col-sm-3" style="width: 125% !important">
<ul class="multi-column-dropdown" id="dropdown-account">
<li><a id="linkblack" href="/customer/account/">Account Dashboard</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/customer/account/edit/">Account Information</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/customer/address/">Address Book</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/customer/account/correspondenceaddress/">Correspondence Address</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/sales/order/history/">My Orders</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/sales/billing_agreement/">Billing Arrangements</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="#">My Connect Subscriptions</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/oauth/customer_token/">My Applications</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/downloadable/customer/products/">My Downloadable Products</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="/rma/return/history/">My Returns</a></li>
<br/>
</ul>
</div>
</ul>
<li class="dropdown-submenu" id="dropdownmenu2">
<a class="dropdown-toggle" data-toggle="dropdown" href="../../checkout/cart/"><i style="color: !important; font-size: 12px; padding-right: 10px; text-transform: uppercase;" class="fas fa-shopping-cart"></i><b style="text-transform: uppercase !important; font-size: 12px;" > My Cart</b><i style="color: !important;" id="dropdown-icon" class="glyphicon glyphicon-chevron-down"></i></a>
<ul style="width: 170px !important;" class="dropdown-menu dropdown-menu-left">
<div class="row">
<div class="col-sm-3" style="width: 115% !important">
<ul class="multi-column-dropdown" id="dropdown-account">
<li><a id="linkblack" href="/checkout/cart/">My Cart</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="../../wishlist/">My Wishlist</a></li>
<li class="divider"></li>
<li><a id="linkblack" href="../../checkout/onepage/"><b style="color: green;">Checkout</b></a></li>
<br/>
</ul>
</div>
</ul>
</li>
</div>
<?php echo $this->getChildHtml('CustomerLinks') ?>
</nav>
<script type="text/javascript">
//<![CDATA[
jQuery(function($){
jQuery("ul.top li").hover(function(){
// #hoverStart
var item = jQuery(this); //ref anchor obj
item.toggleClass("hover"); //enable hover class
var sub_item = item.find('.dd_cont'); //what to dropdown obj
sub_item_count = sub_item.length;
if (sub_item_count){
var sub_item_count = sub_item.find('.subcat').children().length;
var parent = item.parent(); //anchors parent obj
var supernav = parent.parent(); //the top most container of the nav
var block_size = '175'; //width of block container
//positioning
item_pos = item.position(); //get position of the anchor
sub_item_pos = sub_item.position(); //get position of the dropdown item
sub_item_width = sub_item.width(); //get width of the dropdown item
//set the vertical position
sub_item_top = item_pos.top + item.height();
sub_item_left = item_pos.left+8;
//set dropdown width based on number of subcat *
block_size = block_size * sub_item_count;
//give position of anchor to the dd item & change class to show the box
sub_item.css({left:sub_item_left,top:sub_item_top,width:block_size}).toggleClass("dd_show");
}
}, function(){
var item = jQuery(this);
item.toggleClass("hover").find('.dd_cont').css({left: '-1000em'}).toggleClass("dd_show");
});});
//]]>
</script>
</body>
</html>