I created a horizontal menu using CSS, HTML and jquery. When someone clicks on a menu item, it displays a submenu.
My problem is that when the submenu is already open and I click on another menu item, it shows the new submenu but does not hide the previous menu that was opened.
Update: I edited the question so it only focuses on one issue now.
$(".menus_li").click(function(e) {
$(".blocks_ul", this).toggleClass('submenu-is-active');
});
a {
color: #fff;
text-decoration: none;
}
li {
list-style: none;
}
.top-menu {
z-index: 2;
position: fixed;
top: 0;
left: 0;
width: 100%;
display: flex;
width: 100%;
background: #0088ff;
padding: 1rem;
margin: 0;
}
.menus_li {
font-weight: bold;
margin-left: 1rem;
}
.blocks_ul {
display: none;
position: absolute;
background: #fff;
top: 100%;
min-width: 120px;
border-radius: 8px;
padding: 1rem;
}
.blocks_ul a {
color: #000;
}
.blocks_ul li {
padding-left: 10px;
font-weight: normal;
padding: 0.4rem 0.7rem;
}
.blocks_ul.submenu-is-active {
display: block;
}
.bg_submenu {
background-color: rgba(0, 0, 0, 0.6);
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1;
display: none;
}
.bg_submenu.show {
display: block;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="bg_submenu"></div>
<ul class="top-menu">
<li class="menus_li"><a href="#">Cars </a>
<ul class="blocks_ul">
<li><a class="menu-link" href="#">Mercedes</a></li>
<li><a class="menu-link" href="#">Jeep</a></li>
<li><a class="menu-link" href="#">Ford</a></li>
<li><a class="menu-link" href="#">BMW</a></li>
<li><a class="menu-link" href="#">Tesla</a></li>
</ul>
</li>
<li class="menus_li"><a href="#">Computers </a>
<ul class="blocks_ul">
<li><a class="menu-link" href="#">Apple</a></li>
<li><a class="menu-link" href="#">Lenovo</a></li>
<li><a class="menu-link" href="#">HP</a></li>
<li><a class="menu-link" href="#">Dell</a></li>
<li><a class="menu-link" href="#">Acer</a></li>
</ul>
</li>
</ul>
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您可以按如下方式更改代码（代码中的注释）
const $blocks = $(".blocks_ul"); // get all blocks const $background = $(".bg_submenu"); // get background $(".menus_li").on('click', e => { const $thisBlock = $(".blocks_ul", e.currentTarget); // get current block $blocks.not($thisBlock).removeClass('submenu-is-active'); // remove class from other blocks $thisBlock.toggleClass('submenu-is-active'); // toggle the class on the current block $background.toggleClass('show', $thisBlock.hasClass('submenu-is-active')); // only show the background if you are showing the block }); $('body').on('click', e => { const $clicked = $(e.target); // get the target that was clicked // check if the click originated in the menu if (!$clicked.hasClass('menus_li') && !$clicked.closest('.menus_li').length) { // if not do the following $blocks.removeClass('submenu-is-active'); // hide menu $background.removeClass('show'); // hide background } })a { color: #fff; text-decoration: none; } li { list-style: none; } .top-menu { z-index: 2; position: fixed; top: 0; left: 0; width: 100%; display: flex; width: 100%; background: #0088ff; padding: 1rem; margin: 0; } .menus_li { font-weight: bold; margin-left: 1rem; } .blocks_ul { display: none; position: absolute; background: #fff; top: 100%; min-width: 120px; border-radius: 8px; padding: 1rem; } .blocks_ul a { color: #000; } .blocks_ul li { padding-left: 10px; font-weight: normal; padding: 0.4rem 0.7rem; } .blocks_ul.submenu-is-active { display: block; } .bg_submenu { background-color: rgba(0, 0, 0, 0.6); position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; display: none; } .bg_submenu.show { display: block; }