引导程序:导航栏:导航侧菜单:在小屏幕上折叠

如何解决引导程序:导航栏:导航侧菜单:在小屏幕上折叠

我的html页面中有一个nav-side-menu,显示固定的顶部和固定的左侧。我想做的是让它折叠到左侧,并在小屏幕上显示时带有3条的按钮(我不希望它消失)。例如,当窗口变小时,边栏折叠的方式为:https://pro.propeller.in/components/sidebar.php。这就是我走的距离:

  .nav-side-menu {
    overflow: auto;
    font-family: verdana;
    font-size: 12px;
    font-weight: 200;
    background-color: #2e353d;
    /*position: fixed;*/
    position: fixed;
    top: 100px;
    /*width: 300px;*/
    width: 210px;
    height: 100% !important; /*this line made sure when the screen is maximized,the side menu's height is restored*/
    color: #033c73;   
    }

    .nav-side-menu .brand {
        background-color: #23282e;
        line-height: 50px;
        display: block;        
        text-align: center;
        font-size: 14px;
    }

    .nav-side-menu .toggle-btn {
        /*display: none;*/
    }

    .nav-side-menu ul,.nav-side-menu li {
        list-style: none;
        /*padding: 0px;*/
        margin: 0px;
        line-height: 15px;
        /*line-height: 10px;*/
        cursor: pointer;
        padding-left: 10px;
       
    }

        .nav-side-menu ul :not(collapsed) .arrow:before,.nav-side-menu li :not(collapsed) .arrow:before {
            font-family: FontAwesome;
            content: "\f078";
            display: inline-block;
            padding-left: 10px;
            padding-right: 10px;
            vertical-align: middle;
            float: right;
        }

        .nav-side-menu ul .active,.nav-side-menu li .active {
            border-left: 3px solid #d19b3d;
            background-color: #4f5b69;
        }

        .nav-side-menu ul .sub-menu li.active,.nav-side-menu li .sub-menu li.active {
            color: #d19b3d;
        }

            .nav-side-menu ul .sub-menu li.active a,.nav-side-menu li .sub-menu li.active a {
                color: #d19b3d;
            }

        .nav-side-menu ul .sub-menu li,.nav-side-menu li .sub-menu li {
            background-color: #181c20;
            border: none;
            line-height: 28px;
            border-bottom: 1px solid #23282e;
            margin-left: 0px;
        }

            .nav-side-menu ul .sub-menu li:hover,.nav-side-menu li .sub-menu li:hover {
                background-color: #020203;
            }

            .nav-side-menu ul .sub-menu li:before,.nav-side-menu li .sub-menu li:before {
                font-family: FontAwesome;
                content: "\f105";
                display: inline-block;
                padding-left: 10px;
                padding-right: 10px;
                vertical-align: middle;
            }

    .nav-side-menu li {
        /*JS: edited*/
        /*padding-left: 0px;*/
        padding-left: 10px;
        border-left: 3px solid #2e353d;
        border-bottom: 1px solid #23282e;
    }

        .nav-side-menu li a {
            text-decoration: none;
            /*color: #e1ffff;*/
            color: white;
        }

            .nav-side-menu li a i {
                padding-left: 10px;
                width: 20px;
                padding-right: 20px;
            }

    .nav-side-menu li a:hover {
    color: red;
    }
        
        @media (max-width: 767px) {
    .nav-side-menu {
        /*position: relative;*/
        /*position: absolute;*/
        /*width: 100%;*/
        margin-bottom: 10px;
        margin-top: 100px;
        z-index: 10 !important; /* for overlay */
        display: none;  /* this hides the menu when the screen is made smaller */
    }

        .nav-side-menu .toggle-btn {
            display: block;
            cursor: pointer;
            position: absolute;
            right: 10px;
            top: 10px;
            z-index: 10 !important;
            padding: 3px;
            background-color: #ffffff;
            color: #000;
            width: 40px;
            text-align: center;
        }

    .brand {
        text-align: left !important;
        font-size: 22px;
        padding-left: 20px;
        line-height: 50px !important;
        }
    }

    @media (min-width: 767px) {
        .nav-side-menu .menu-list .menu-content {
        display: block;
    }
<body>
    <h1>Hello,world!</h1>

<nav class="navbar-inverse" role="navigation">
    <div>

      

           <div class="nav-side-menu sticky-top" style="padding-top: 100px">
                                   <!--<ul class="nav navbar-nav">-->
              <ul class="nav navbar-nav nav-pills nav-stacked">
                  <li>
                                                   
                    <a href="" class="nav-link expanded" data-toggle="collapse" style="padding-top:10px;padding-bottom:10px;font-size:15px;font-weight:bold;color:white;background-color:#2e353d;cursor:default">
                                                       Profile&nbsp;
                                                       <!--<span class="caret"></span>-->
                     </a>
                  <!--<ul class="dropdown-menu">-->
                  <ul class="flex-column nav">
                     <li class="nav-item">
                                                                   
                          <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Profile/Item1">Item 1</a>
                      </li>
                      <li class="nav-item">
                         <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Profile/Item2">Item 2</a>
                       </li>
                       <li class="nav-item">
                          <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Profile/Item3">Item 3</a>
                        </li>
                        <li class="nav-item">
                            <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Profile/Item4">Item 4</a>
                        </li>
                                                               
                        <li class="nav-item">
                            <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Profile/Item5">Item 5</a>
                        </li>
                     </ul>
                 </li>
             </ul>
             <ul class="nav navbar-nav">
             <li>
                 <a href="" class="nav-link expanded" data-toggle="collapse" style="padding-top:10px;padding-bottom:10px;font-size:15px;font-weight:bold;color:white;background-color:#2e353d;cursor:default">
                                                       Options&nbsp;
                 </a>
            <ul class="flex-column nav">
                <li class="nav-item">
                    <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Options/Item6">Item 6</a>
                </li>
                                                                       
                <li class="nav-item">
                   <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Options/Item7">Item 7</a>
                </li>
            </ul>
          </li>
        </ul>
        <ul class="nav navbar-nav">
            <li>
                <a href="" class="nav-link expanded" data-toggle="collapse" style="padding-top:10px;padding-bottom:10px;font-size:15px;font-weight:bold;color:white;background-color:#2e353d;cursor:default">
                                                       Reports&nbsp;
                 </a>
                 <ul class="flex-column nav">
                      <li class="nav-item">
                          <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Report/Item8">Item 8</a>
                       </li>
                       <li class="nav-item">
                            <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Report/Item9">Item 9</a>
                       </li>
                       <li class="nav-item">
                            <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Report/Item10">Item 10</a>
                        </li>
                        <li class="nav-item">
                            <a style="padding-top:10px;padding-bottom:10px;font-size:15px;" class="nav-link" href="Report/Item11">Item 11</a>
                        </li>
                     </ul>
                 </li>
            </ul>
                                   
        </div>
    <div class="navbar-header" style="padding-top: 0px">
          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target=".nav-side-menu">
               <span class="icon-bar">Toggle navigation</span>
               <span class="icon-bar"></span>
               <span class="icon-bar"></span>
               <span class="icon-bar"></span>
             </button>
           </div>
   </div>
</nav>
    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
    <!-- Include all compiled plugins (below),or include individual files as needed -->
    <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
  </body>

感谢您的帮助。 谢谢

编辑:现在,我可以在调整窗口大小时隐藏和显示侧面菜单。并且还显示切换按钮隐藏并在较小的屏幕中显示。 但是,当菜单在较小的屏幕中切换(隐藏)并调整窗口大小时,如何使菜单再次出现?

解决方法

由于您已经在使用Bootstrap 4,因此它具有这样的内置类。看看Bootstrap Navbar Responsive
它是可取的,它可以自动响应从手机到台式机等更多屏幕的每个屏幕。因此,请仔细阅读。

,

通过调整CSS样式,我能够在较小的屏幕上隐藏和显示菜单。请查看原始帖子的评论。

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