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我想要對齊通過flex-wrap壓入第二行的項目（項目數量可能有所不同）：當窗口瀏覽器的大小調整到900px以下的右側。只在由flex-wrap創建的'第二行'中對齊flex項目：包裝
我用柔性包裝：包裝，因爲最初的問題是，整個菜單欄太寬，當瀏覽器窗口中有過小。
裹解決了這個問題，但隨後崩潰的子菜單中的「棒」菜單欄（如鏈接3.1後面鏈接7）
的主要元素背後如果有人可以提供比柔性更好的解決方案包裝：我會很高興欣賞這一點。
我試圖用不同版本的justify-content來解決這個問題。但它要麼根本不工作，要麼整個菜單欄都受到影響。
所以主要的問題是：如何僅將這些項目對齊到'第二個flex行'的右側？
我還創建了一個筆： [，但我不能郵政兩個以上的鏈路，所以我要張貼筆進入評論]
jQuery(document).ready(function($) {
// add JS-classes into the HTML-Tag
$('html').addClass('js');
// add classes for sub menus and sub menus toggle button
$(".site-nav li > ul").parent('li').addClass('has-sub-menu');
$(".site-nav li > ul").addClass('sub-menu');
// create button for expand- und collapse the menu and render it into the header
var create_toggle_nav_button = ['<div class="toggle-site-nav">Menu</div>'].join("");
$("header").append(create_toggle_nav_button);
// create button for expand- und collapse the sub menu for mobile view and add them to all sub menus
var create_sub_toggle_button = ['<span class="toggle-sub-menu"></span>'].join("");
$(".has-sub-menu > a").after(create_sub_toggle_button);
// define variables
var $menu = $('.site-nav'),
$toggle_nav = $('.toggle-site-nav'),
$toggle_sub_menu = $('.toggle-sub-menu');
// collapse and expand function of the main menu
$toggle_nav.click(function(e) {
e.preventDefault();
$menu.slideToggle();
});
// collapse and expand function of the drop down menu for mobile view
$toggle_sub_menu.click(function(e) {
e.preventDefault();
var $this = $(this);
$this.toggleClass('active').next('ul').slideToggle();
});
// display hidden elements again, when browserwindow is resized by user
$(window).resize(function() {
var w = $(window).width();
if (w > 900) {
$('.site-nav').removeAttr('style');
$('.sub-menu').removeAttr('style');
}
});
// collapse navigation automatically to the left, when it run out of the viewport
$(".site-nav .has-sub-menu").on('mouseenter mouseleave', function(e) {
var nav_element = $('ul:first', this);
var element_offset = nav_element.offset();
var element_offset_left = element_offset.left;
var element_width = nav_element.width();
var viewport_width = $(window).width();
var element_in_viewport = (element_offset_left + element_width <= viewport_width);
if (!element_in_viewport) {
$(this).addClass('sub-left');
} else {
$(this).removeClass('sub-left');
}
});
});* {
margin: 0;
padding: 0;
list-style: none;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
body::after {
content: '';
position: fixed;
bottom: 1em;
right: 1em;
opacity: 0.5;
font-size: 0.8em;
z-index: 9999;
}
header {
width: 100%;
background: white;
}
.container {
max-width: 1000px;
margin: 0 auto;
}
.logo {
display: block;
width: 100%;
padding: 1em;
text-decoration: none;
color: gray;
/* ? */
}
.site-nav {
z-index: 9999;
}
.site-nav>ul {
display: flex;
flex-direction: row;
justify-content: center;
align-items: stretch;
flex-wrap: wrap;
}
.site-nav li {
display: inline-block;
flex-wrap: wrap;
width: auto;
padding: 0;
position: relative;
z-index: 9999;
}
.site-nav a {
display: inline-flex;
align-content: stretch;
padding: 1em;
white-space: nowrap;
text-decoration: none;
height: 100%;
width: 100%;
color: white;
/* text color of all */
background: #5a595a;
/* background color main nav Link 1 */
border-top: 1px solid rgba(0, 0, 0, 0.5);
z-index: 9999;
}
.site-nav a:hover {
background: rgba(0, 0, 0, 0.4);
/* mouseover color Link 1 and Link 1.1 */
}
.js .site-nav {
display: none;
}
.js .sub-menu {
display: none;
position: absolute;
top: 100%;
left: 0px;
}
.js .sub-menu .sub-menu {
top: 0px;
left: 100%;
}
.js .has-sub-menu {
position: relative;
top: 100%;
left: 0px;
}
.sub-menu li:last-of-type {
padding-bottom: 0;
}
.sub-menu a {
background: #676567;
/* background color menu 2.1 only */
}
.sub-menu .sub-menu a {
background: #747274;
/* background color menu 2.1.1 only */
}
.sub-menu .sub-menu a:hover {
background: rgba(0, 0, 0, 0.4);
/* mouseover color Link 1 and Link 1.1 */
}
/* toggles */
.toggle-site-nav {
background: #5a595a;
/* background color of menu button when resized */
display: block;
position: absolute;
right: 0;
top: 0;
padding: 1em;
color: white;
/* text color of the word menu in menu button when resized */
cursor: pointer;
z-index: 9999;
}
.toggle-site-nav:hover {
background: rgba(0, 0, 0, 0.5);
/* mouseover color of menu button when resized */
}
.toggle-sub-menu {
display: none;
}
.js .toggle-sub-menu {
display: flex;
position: absolute;
align-content: center;
right: 0em;
top: 1.05em;
/* hight of the borders */
background: #817e81;
/* backgound of annoying squares when resized */
height: 15px;
width: 15px;
cursor: pointer;
z-index: 10000;
}
.js .toggle-sub-menu.active {
background: #DCDCDC;
/* color of annoying square after clicking on it when resized */
}
.toggle-sub-menu:hover,
.toggle-sub-menu.active:hover {
background-color: rgba(0, 0, 0, 0.4);
/* mouseover of annoying squares when resized */
}
@media screen and (min-width:900px) {
.logo {
width: auto;
float: left;
}
.site-nav {
width: auto;
display: block !important;
}
.site-nav a {
border: none;
}
.site-nav li {
width: auto;
padding: 0;
}
.site-nav li:hover {
background: rgba(52, 50, 52, 1);
/* mouseover background color of all menu */
}
.has-sub-menu a {
padding-right: 2em;
/* check this value */
}
.has-sub-menu:after {
/* check this for editing the stripes */
display: flex;
content: '';
position: absolute;
align-content: center;
top: 1.2em;
right: 0;
width: 0.5em;
height: 25%;
background: #817e81;
/* color of stripes in main menu when it has submenu */
}
/* sub menu */
.site-nav li:hover>.sub-menu {
display: block;
position: absolute;
width: 300px;
padding: 0 25px 25px 25px;
left: -25px;
}
.sub-menu {
display: none;
}
.sub-menu li {
width: 100%;
}
.sub-menu>a {
width: 100%;
display: block;
}
.has-sub-menu .has-sub-menu:after {
background: #817e81;
/* color of stripes of Link 2.1 menu when it has submenu */
}
.has-sub-menu .has-sub-menu:hover .sub-menu {
display: block;
position: absolute;
width: 300px;
padding: 0 25px 25px 25px;
left: 224px;
top: 0px;
}
.toggle-site-nav,
.toggle-sub-menu {
display: none !important;
}
/* navigations items, which collapse to the left */
.sub-left>.sub-menu {
left: auto;
right: 0;
}
.site-nav .sub-menu .sub-left>.sub-menu {
left: -275px;
}
}
@media (max-width :800px) {
.site-nav {
z-index: 999999999999999999;
margin-top: 25px;
}
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<header>
<div class="container">
<a href="#" class="logo"></a>
<nav class="site-nav">
<ul>
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a>
<ul>
<li><a href="#">Link 2.1</a></li>
<li><a href="#">Link 2.1</a>
<ul>
<li><a href="#">Link 2.1.1</a></li>
<li><a href="#">Link 2.1.2</a></li>
<li><a href="#">Link 2.1.3</a></li>
<li><a href="#">Link 2.1.4</a></li>
</ul>
</li>
<li><a href="#">Link 2.1</a></li>
</ul>
</li>
<li><a href="#">Link 3</a>
<ul>
<li><a href="#">Link 3.1</a></li>
<li><a href="#">Link 3.2</a></li>
<li><a href="#">Link 3.3</a></li>
<li><a href="#">Link 3.4</a></li>
<li><a href="#">Link 3.5</a></li>
</ul>
</li>
<li><a href="#">Link 4</a></li>
<li><a href="#">Link 5</a></li>
<li><a href="#">Link 6</a></li>
<li><a href="#">Link 7</a>
<ul>
<li><a href="#">Link 7.1</a></li>
<li><a href="#">Link 7.2</a></li>
<li><a href="#">Link 7.3</a>
<ul>
<li><a href="#">Link 7.3.1</a></li>
<li><a href="#">Link 7.3.2</a></li>
<li><a href="#">Link 7.3.3</a></li>
<li><a href="#">Link 7.3.4</a></li>
<li><a href="#">Link 7.3.5</a></li>
</ul>
</li>
<li><a href="#">Link 7.4</a></li>
<li><a href="#">Link 7.5</a></li>
</ul>
</li>
<li><a href="#">Link 8</a></li>
</ul>
</nav>
</div>
</header>
這裏是鏈接到筆： https://codepen.io/undefined999/pen/MEwmOp – undefined
這就是最終的結果你想要什麼？ https://codepen.io/solbreslin/pen/zEGPmX – sol
@ovokuro是的，這就是我想要它。你是怎麼做到的？你精靈？ 你也許有一個想法如何使子子菜單（例如鏈接7.3.1摺疊到左側，而不是在右邊？ 非常感謝你的幫助 – undefined