单击移动设备上的下拉菜单时，使容器保持在原位

时间：2017-04-02 05:38:48

标签： javascript jquery html css media-queries

每次点击“汉堡徽标”时，我的容器都会被按下几个像素，我希望“导航列表”将其自身定位在容器上方，这样当用户点击徽标时，容器就会停留在原位而列表项只是漂浮在它们之上。我尝试了从“position：absolute”到“z-index：100”的所有内容，似乎没有任何效果。 请尝试在“检查元素”中打开它并转到“iPhone 6 plus -vertical”视图并测试，您将看到“Open Touch”向下移动。 这是我的代码：

演示：

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
    <head>
        <title>Open Touch</title>
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
         <link href="//fonts.googleapis.com/css?family=Open+Sans:300,400,600,700&amp;subset=latin" rel="stylesheet">

        <link href="https://fonts.googleapis.com/css?family=Nunito:700" rel="stylesheet">
        <link href="https://fonts.googleapis.com/css?family=Baloo" rel="stylesheet">
        <link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet">
        <link href="https://fonts.googleapis.com/css?family=Montserrat" rel="stylesheet">
        <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet"> 

             <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
        <link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>


        <link rel="stylesheet" type="text/css" href="magicstyle.css">

        </head>     
        <body>
            <!-- Section for Jobs Popup -->
            <div id="top-bar">
                  <a id="burger-nav"></a>
                    <ul id="nav-menu" class="blah">
                    <li id="job" class="testAgain">Jobs</li>
                    <li id="contact" class="testAgain">Contact</li>
                    <li id="press" class="testAgain">Press</li>
                    <li id="legal" class="testAgain">Legal</li>
                    <li id="support" class="testAgain">Support</li>


                </ul>
                </div>

            <div id="container">


                <div id="name-div">
                <h1 id="name">Open Touch</h1>
                </div>


            </div>



        </body>





</html>

HTML 

            @font-face{
                font-family: 'custom';
                src: url('HelveticaNeue.ttf');
            }
             #top-bar{
                width:100%;
                min-height: 5px;
                background-color: #FFFFFF;
                position: relative;
                 z-index: 3;
                z-index: 101;
                 overflow: hidden;

            }
            #nav-menu{
                width: 100%;
                height: 32px;
                min-height: 5px;
                list-style: none;
                overflow: hidden; 
            }  
            #nav-menu li{
                float: left;
                padding-right: 100px;
                font-size: 1.2em;
                position: relative;
                top:0.6vh;
                left:14%;
                vertical-align: middle;
                display: inline-block;
                cursor: pointer;
                -webkit-user-select: none;
                -ms-user-select: none;
                -moz-user-select: none;
                -o-user-select: none;

            }

            #container{
                width: 100%;
                height: 100vh;
                background-image: linear-gradient(to right, #6a11cb 0%, #2575fc 100%);
                position: absolute;
                left:0;
                right:0;
                overflow: hidden;

            }
            body {
                width: 100%;
                height: 100vh;
                margin: 0;
                padding: 0;
                color:#262626;
                overflow-y: hidden;
                overflow-x: hidden;
                font-family: 'custom';
            }
            #name-div{ 
               margin-left:auto;
                margin-right:auto;
                width:80%;
                position: relative;
                top:27%;
                z-index: 10; 
                -webkit-user-select: none;
                -ms-user-select: none;
                -moz-user-select: none;
                -o-user-select: none;

            }
/* Start of Job css for popup and animation ------------------------------------------------------------------------------------------------------------- */
        #name{
                color:white;
                font-size: 7em;
                word-wrap: break-word;
                z-index: 10;
                text-align: center;

            }

@media screen and (max-width: 414px) {
      #burger-nav{
        display: block;
        width: 100%;
        height: 40px;
        background: url(burgerlogo.png) no-repeat 98% center;
        background-size: 30px 30px;
         background-color: white;

    }
    #burger-nav.show{
        background-color: #f97072;
    }
     #nav-menu{
        background-color: white;
        margin: 0;  
        padding:0;
        width: 100%;
        height:100%;
        overflow: hidden;
         display: none;


    }
    #nav-menu.open{
        display: block;
        z-index: 100;
    }

    #nav-menu li{
        float: none;
        padding: 10px;
        position: relative;
        text-align: right;  
        top:0;
        left:0;
        cursor: pointer;
        border-bottom: 0.1px solid #f8f9fb;
        display: block;
        font-weight: bold;

    }
    #nav-menu li:hover {
        background-color: #f8f9fb;
    }
    #name-div{ 
        position: absolute;
        top: 40%;
        left: 0%;
        z-index: 10; 
        -webkit-user-select: none;
        -ms-user-select: none;
        -moz-user-select: none;
        -o-user-select: none;

            }
    #name{
        font-size: 4em;
    }
    #name.show{
        position: relative;
        bottom: 40px;
    }

}

的CSS 

   // document.getElementById("burger-nav").onclick = function() {
      //  var menu = document.getElementById("nav-menu");
        //menu.classList.toggle("open");
    //}

    $("document").ready(function() {


        document.getElementById("burger-nav").onclick = function() {
            var menu = document.getElementById("nav-menu");
                menu.classList.toggle("open");
        }
        $(".testAgain").click(function() {
            $("#burger-nav").css("background-color", "#f97072");
           $(".blah").removeClass("open"); 
        });
    });

Java脚本

.val()

1 个答案:

答案 0 :(得分：0)

首先，您需要 <ul class="nav side-menu"> <li <?php if($this->uri->segment(2)=='dashboard'){echo 'class="active"';}?>><a><i class="fa fa-dashboard"></i> Dashboard<span class="fa fa-chevron-down"></span></a> <ul class="nav child_menu"<?php if($this->uri->segment(2)=='dashboard'){echo 'style="display-block"';}?> > <li><a href="<?php echo base_url();?>admin/dashboard">Dashboard </a></li> </ul> </li> <li <?php if($this->uri->segment(2)=='document' || $this->uri->segment(2)=='field' ){echo 'class="active"';}?>><a><i class="fa fa-check-square"></i> Application<span class="fa fa-chevron-down"></span></a> <ul class="nav child_menu" <?php if($this->uri->segment(2)=='document' || $this->uri->segment(2)=='field' ){echo 'style="display:block"';}?>> <li><a href="<?php echo base_url();?>admin/document">Applicant List</a></li> <li><a href="<?php echo base_url();?>admin/document/add">New Case Entry</a></li> <li><a href="<?php echo base_url();?>admin/document/uploadbulk">Bulk Data Upload</a></li> </ul> </li> </ul> 定位菜单，以便从布局中移除它，而不会影响其后元素的位置。

其次，菜单当前位于您已设置absolute的父元素中。这就是为什么看起来overflow:hidden正在让它显示在内容之下，而实际上它只是完全超出溢出范围。

第三，z-index有一个ul和height的指定100%缩小到容器的大小，只有大约1个列表项。

http://codepen.io/anon/pen/jBdwva

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