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javascript - 需要帮助/Off-Canvas Flexbox 菜单切换/z-index

转载 作者:行者123 更新时间:2023-11-28 01:27:09 25 4
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更新

通过将以下内容添加到“站点菜单”和“容器”样式,我能够让侧边导航项堆叠:

{
position: absolute;
display: flex;
align-items: center;
justify-content: center;
}

唯一剩下的就是让内容根据点击的标签正确切换。

原帖

我正在使用 flexbox 和 Off-Canvas menu tutorial创建一个悬停的sidenav菜单。

当按下一个选项卡时,我希望该 flex 元素滑到屏幕上并位于最前面。我有滑动到屏幕上的工作,这是导致问题的堆叠顺序。如何更改 flex 元素的堆叠顺序或根据单击的选项卡在显示的内容之间切换?图片应该有助于澄清:

Image - Flexbox Off Canvas Menu

这是我目前为该网站所做的工作的链接:<强> LINK

我看过使用 css 和 javascript 更改堆叠顺序的示例,但我无法完全理解如何使其与 flexbox 元素一起工作。

CSS

#site-wrapper {
position: relative;
overflow: hidden;
width: 100%;
margin: 0;
padding: 0;
}

#site-canvas {
width: 100%;
height: 84vh;
position: relative;
-webkit-transform: translateX(0);
transform: translateX(0);
-webkit-transition: .3s ease all;
transition: .3s ease all;
margin: 0 auto;
padding: 0.8% 20px; /* Temp: Just spacing. */

-webkit-box-shadow:inset 1px 1px 60px 5px rgba(100,100,100,0.5);
box-shadow:inset 1px 1px 60px 5px rgba(100,100,100,0.5);

display: flex;
flex-wrap: wrap;
}

#site-menu {
width: 300px;
height: 100%;
position: absolute;
top: 0;
left: -300px;
/*background: #428bca;*/
padding: 15px 0 15px 15px;
}

/* Animation */
#site-wrapper.show-nav #site-canvas {
-webkit-transform: translateX(300px);
transform: translateX(300px);
}

#sidenav span {
display: flex;
flex:auto;
justify-content: flex-end;
position: absolute; /* Position them relative to the browser window */
left: -80px; /* Position them outside of the screen */
transition: 0.3s; /* Add transition on hover */
padding: 10px 15px; /* 15px padding */
width: 140px; /* Set a specific width */
text-decoration: none; /* Remove underline */
font-size: 20px; /* Increase font size */
color: white; /* White text color */
border-radius: 0 5px 5px 0; /* Rounded corners on the top right and bottom right side */
}

#sidenav span:hover {
left: 0; /* On mouse-over, make the elements appear as they should */
cursor: pointer;
}

.container {
width: 100%;
display: flex;
justify-content: center;
align-items: center;
}

#tabOne {
top: 20px;
background-color: #333333; /* Black */
}

#tabTwo {
top: 20px;
background-color: #666666; /* Black */
}

#tabThree {
top: 20px;
background-color: #999999; /* Black */
}

HTML

<div class="page">
<div id="site-wrapper">
<div id="site-canvas">
<div id="mySidenav" class="toggle-nav sidenav">
<span id="tabOne">
<h4>Tab One </h4>
<img alt="Tab Icon"/>
</span>
<span id="tabTwo">
<h4>Tab Two </h4>
<img alt="Tab Icon"/>
</span>
<span id="tabThree">
<h4>Tab Three </h4>
<img alt="Tab Icon"/>
</span>
</div>
<div id="site-menu flex-container">
<div class="container" id="tabOne">
<div class="tabOne-flexItem">
<h1>Tab One Content</h1>
<p>Lorem ipsum dolor sit amet, laoreet dolore magna aliquam erat volutpat.</p>
<p>Lorem ipsum dolor sit amet, laoreet dolore magna aliquam erat volutpat.</p>
</div>
</div>
<div class="container" id="tabTwo">
<div class="tabTwo-flexItem">
<h1>Tab One Content</h1>
<p>Lorem ipsum dolor sit amet, laoreet dolore magna aliquam erat volutpat.</p>
<p>Lorem ipsum dolor sit amet, laoreet dolore magna aliquam erat volutpat.</p>
</div>
</div>
</div>
<div class="main_content">
<div>
Main Page Content Goes Here
</div>
</div>
</div>
</div>
</div>

Javascript

<script>
/* OFF CANVAS */
$(function() {
"use strict";
$('.toggle-nav').click(function() {

toggleNav();
});
});

/*========================================
= CUSTOM FUNCTIONS =
========================================*/
function toggleNav() {
"use strict";
if ($('#site-wrapper').hasClass('show-nav')) {
// Do things on Nav Close
$('#site-wrapper').removeClass('show-nav');
} else {
// Do things on Nav Open
$('#site-wrapper').addClass('show-nav');
}

}

</script>

如有任何指导,我们将不胜感激。

最佳答案

我对您的代码进行了一些更改以使堆叠顺序正常工作。我将数据属性添加到选项卡,并使用 jQuery 来使用属性值来隐藏或显示容器。由于单击选项卡会更改内容,因此我不想在单击选项卡时关闭 Canvas ,因此我使用悬停来打开 Canvas 。

这是更改哪个容器可见的新 jQuery 代码:

$( ".sidenav span" ).click(function() {
var index = $(this).data('index');

$( ".container" ).each(function(i) {
if (i != index) {
$(this).addClass('hidden');
}
else {
$(this).removeClass('hidden');
}
});
});

看看 fiddle .

关于javascript - 需要帮助/Off-Canvas Flexbox 菜单切换/z-index,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51182358/

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