无法在列表项的单击上显示下拉内容

Question

我正在HTML页面的左侧边栏上工作。我的左侧边栏有很少的文字，如果我们点击，那么它们应该下拉并显示其他文本：

这是我的jsfiddle：https://jsfiddle.net/g2ahx6nq/40/

我有以下文字：

• 我们的DNA
• 程序
• 研究
• STORIES

因此，如果我点击左侧栏上的任何上述文本，它应该下拉并显示属于他们的其他文本。从技术上讲，它应该像这样的图像：https://s3.postimg.org/gbxn8hkf7/home1.png

正如您在左侧边栏（上图中）所见，上述每个文本的扩展版本。我必须匹配颜色和字体。下面是我的左栏导航的HTML代码，但不知何故，我的点击根本不起作用，也无法匹配字体和大小。我也错过了下拉箭头。

<div id="leftBar">
    <br />

    <svg id="clippedImg" width="0" height="0">
        <clipPath id="clipPolygon">
            <polygon points="1 100%,131 100%,130 0,0 0">
            </polygon>
        </clipPath>
    </svg>
    <nav>
        <ul>
            <li class="dropdown">
                <a href="#">OUR DNA</a>
                <ul class="dropdown-content">
                    <li><a href="#"><i>RISK</i></a></li>
                </ul>
            </li>
            <li class="dropdown">
                <a href="#">PROGRAMS</a>
                <ul class="dropdown-content">
                    <li><a href="#"><i>PROFESSIONAL</i></a></li>
                    <li><a href="#"><i>ADVENTURE SPORT</i></a></li>
                    <li><a href="#"><i>ENTERTAINMENT</i></a></li>
                    <li><a href="#"><i>COLLEGIATE</i></a></li>
                    <li><a href="#"><i>INDIVIDUAL</i></a></li>
                    <li><a href="#"><i>COMMERCIAL</i></a></li>
                </ul>
            </li>
            <li class="dropdown">
                <a href="#">RESEARCH</a>
                <ul class="dropdown-content">
                    <li><a href="#"><i>CORPORATE SURVEY</i></a></li>
                    <li><a href="#"><i>INDIVIDUAL SURVEY</i></a></li>
                </ul>
            </li>
            <li class="dropdown">
                <a href="#">STORIES</a>
            </li>               
        </ul>
    </nav>
</div>

这是我的CSS：

nav ul {
    list-style-type:none;
    margin:0;
    padding:0;
}

nav ul li {
    display:inline-block;
    position:relative;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  padding: 10px 20px;
  display: block;
  width: 80px;
}

nav ul li a:hover {
  background: #00648C;
}

ul.dropdown-content {
  position: absolute;
  display: none;
}

我正在做什么，我的点击不起作用？我们如何才能匹配字体，颜色？

Answer 1

尝试在css中给出nav ul选择器一个位置和z-index，＆＃39; top＆＃39;元素和img位于列表的顶部，因此您不会实际点击列表项。

的CSS：

nav ul {
z-index:10;
position:absolute;
list-style-type:none;
margin:0;
padding:0;

}

我还没有修复列表中的样式问题;）

更新：也尝试添加此

nav{
    height:auto;
}

并将此位置更改为相对

ul.dropdown-content {
    position: relative; //was absolute
    display: none;
}

编辑：进行了其他更改

.dropdown-content li a{
    font-size:11px;
}
*{
    box-sizing:border-box; //using this on all elements, element size wont change when you set borders. giving a 2px border to a 150px div, the div will remain 150px. Same goes for paddings.
}
nav ul li {
    display:inline-block;
    position:relative;
    width:100%; //makes sure the hover effect is the same width with all Li's
}
nav ul li a{
  display:flex;
  justify-content:space-between; //spreads the li's text and arrow, arrows on 1 line
}
#leftBar {
    background-color: #030303;
    box-shadow: 2.996px 0.157px 7.65px 1.35px rgba(40, 40, 41, 0.25);
    border-right: solid #EF7440;
    border-right-width: 4px;
    top: 0px;
    bottom: 0px;
    left: 0px;
    height: 2278px;
    position: absolute;
    width: 150px;  //gives more space for the arrow next to text.
}

Answer 2

<强>更新

试试这个小提琴https://jsfiddle.net/jgf90mh9/18/

 $(document).ready(function(){
    $(".dropdown a").click(function(){
        $(this).closest('.dropdown').find('.dropdown-content').slideToggle(200);
        $(this).closest('.dropdown').siblings('.dropdown').find('.dropdown-content').slideUp(200);
    });
 });

Answer 3

由于您z-index: 2设置了#clipimgA1，因此您的图片会重叠#leftBar div。您现在无法与#leftBar进行互动，因为它位于#clipimgA1的下方，但由于opacity: 0.5已设置#clipimgA1，您仍然可以看到它。我在z-index: 2; opacity: 0.5中对#clipimgA1进行了评论，现在按预期工作了

＆＃13;

＆＃13;

$(document).ready(function(){
    $(".dropdown").click(function(e){
        e.preventDefault();
        var $this = $(this).children(".dropdown-content");
        $(".dropdown-content:visible").not($this).slideToggle(200); //Close submenu already opened
        $this.slideToggle(200); //Open the new submenu
    });
});

＆＃13;

* {
    margin: 0px;
}

body {
    margin: 0px;
    overflow-x: hidden;
}

p,
span,
h1,
h2,
h3,
h4,
h5,
h6,
td,
div,
ul,
li {
    margin: 0px;
    padding: 0px;
    text-decoration: none;
    list-style: none;
}

.login {
    position: relative;
	top: -50px;
    z-index: 9999;
	color: white;
	text-decoration: none;
	padding: 0 10px;
	font-size: 13px;
}

.signup {
    position: relative;
	top: -50px;
    z-index: 9999;
	color: white;
	text-decoration: none;
	padding: 0;
	font-size: 13px;
}

.above {
	display: flex;
	flex-flow: row wrap;
	justify-content: flex-start;
	position: relative;
    z-index: 9999;
	top: -60px;
	padding: 0 5px;
}

.fa {
	color: white;
	margin: 5px;
}

img {
    /* Set max width to be 100% of the containing element */
    max-width: 100%;
    max-height: 100%;
}

body .company-bio p {
    font-family: 'agenda';
    margin-bottom: 20px;
    letter-spacing: .18em;
    font-family: 'agenda';
    font-weight: 400;
    color: rgb(254, 254, 255);
}

div.company-bio {}

body .company-bio {
	position: relative;
	top: -42px;
    padding-top: 40px;
    margin-left: 131px;
    /*Added Just now */
    padding-bottom: 40px;
    max-width: 100%;
    background: url("https://s30.postimg.org/l04wudgs1/grey-bar.png");
    padding-left: 140px;
    padding-right: 155px;
    font-size: 20px;
    font-family: "Adelle PE";
}

.top h1 {
    color: #f86d2c;
    font-style: italic;
    font-size: 37px;
}

.top p {
    color: white !important;
    background-color: black;
}

.mission-statements .programs {
    position: relative;
    top: 60px;
    width: 300px;
    border-style: solid;
    border-width: 4px;
    text-align: center;
    font-size: 19px;
    border-color: #EF7440;
    padding: 25px;
    margin: 25px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1.5px 2.598px 7.65px rgba(40, 40, 41, 0.16);
    font-family: "adelle regular";
    color: rgb(40, 40, 41);
    line-height: 1.979;
}

.top h4 {
    font-size: 25px;
    font-family: "ITC Avant Garde Gothic";
    color: rgb(255, 255, 255);
    text-transform: uppercase;
    line-height: 1.792;
    text-align: left;
    -moz-transform: matrix( 1.65479981820633, 0, 0, 1.66565153423699, 0, 0);
    -webkit-transform: matrix( 1.65479981820633, 0, 0, 1.66565153423699, 0, 0);
    -ms-transform: matrix( 1.65479981820633, 0, 0, 1.66565153423699, 0, 0);
    position: absolute;
    left: 684.247px;
    top: 280.77px;
}

.top h2 {
    position: absolute;
    top: 320px;
    left: 450px;
    letter-spacing: .3em;
    font-size: 22px;
    font-family: "Avant Garde", Avantgarde, "Century Gothic", CenturyGothic, AppleGothic, sans-serif;
    color: rgb(255, 255, 255);
    text-transform: uppercase;
    line-height: 1.6;
    text-align: center;
    text-shadow: 0px 3px 6.37px rgba(40, 40, 41, 0.004);
}

body .northmanwild .title {
    /* background-image:url(assets/img/Uploads/insta-pics.png); */
    width: 100%;
    padding-bottom: 40px;
    padding-top: 40px;
    text-align: center;
    font-size: 37px;
    margin-top: 0px !important;
    margin-bottom: 0px !important;
    font-family: "Adelle PE";
    color: rgb(255, 255, 255);
    font-weight: bold;
    font-style: italic;
    line-height: 1.979;
    text-align: center;
    /*text-shadow: 1.5px 2.598px 7.65px rgba(40, 40, 41, 0.5);
opacity: 100%;
fill: 57%;
*/
}

div.leftBar-bottom {
    background-image: url("https://s17.postimg.org/yvv4w2gmn/nav-background.png");
    float: left;
}

div.northmanwild {
    margin-top: -2px;
    width: 90.1%;
    float: right;
    opacity: 0.8;
    margin-bottom: -7px;
}

body .footer {
    width: 90.3%;
    float: right;
    color: rgb(40, 40, 41);
    padding-top: 30px;
    padding-bottom: 20px;
    font-weight: normal;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-image: url(assets/img/Uploads/footer-bg.png);
}


/*FIGURE OUT PROBLEM WITH MISSION STATEMENTS*/

body .mission-statements {
    margin-left: 131px;
    padding-bottom: 130px;
    padding-left: 45px;
    padding-right: 45px;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    background-image: url(assets/img/Uploads/bg-trees.png);
}

body .mission-statements .why {
    padding-top: 40px;
    font-family: "Avant Garde", Avantgarde, "Century Gothic", CenturyGothic, AppleGothic, sans-serif;
    padding-bottom: 40px;
    padding-left: 40px;
    position: relative;
    left: -40px;
    top: 30px;
}

body .mission-statements .how {
    padding-top: 40px;
    font-family: "Avant Garde", Avantgarde, "Century Gothic", CenturyGothic, AppleGothic, sans-serif;
    padding-bottom: 10px;
    padding-right: 40px;
}

body .mission-statements .what {
    padding-top: 40px;
    padding-bottom: 40px;
    padding-left: 40px;
    font-family: "Avant Garde", Avantgarde, "Century Gothic", CenturyGothic, AppleGothic, sans-serif;
    position: relative;
    left: -40px;
    top: 30px;
}

body .mission-statements .why pre {
    padding-left: 40px;
}

body .mission-statements .how {
    margin-top: 0px !important;
    padding-right: 0px;
    margin-bottom: 0px !important;
}


/*.top .imgB1
{
  position: relative;
  top: -225px;
}

*/

.top {
    position: relative;
    top: 0;
    left: 0;
    margin-bottom: -7px;
}

.imgA1 {
    position: relative;
    top: 0;
    left: 0;
}

.clippedmain {
    position: absolute;
    top: 0;
    left: 0;
}

#clippedImg {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}

#clipimgA1 {
    /*Chrome,Safari*/
    -webkit-clip-path: polygon(1px 100%, 131px 100%, 130px 0px, 0px 0px);
    position: absolute;
    top: 0;
    left: 0;
    /*z-index: 2;
    opacity: 0.5;*/
}


/*Firefox*/

clip-path: url("#clipPolygon");

/* iOS support inline encoded svg file*/

-webkit-mask: url(data:image/svg+xml;charset=utf-8;base64,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) no-repeat;

}
.imgB1 {
    position: absolute;
    top: -65px;
    left: 70px;
}
.footer .footer-section1 {
    float: left;
    width: 33%;
}
.footer .footer-section2 .block-title {
    position: relative;
    width: 338px;
    left: -140px;
    font-size: 16px !important;
    font-family: "AvantGarde";
    color: rgb(40, 40, 41);
    /* font-style: italic; */
    
    letter-spacing: 4px;
    border-bottom: 2px solid #000000;
}
.footer .footer-section2 .block-content {
    font-style: italic;
    line-height: 1.52;
    top: 18px;
    left: 52px;
    position: relative;
}
.footer .footer-section3 .block-content {
    position: relative;
    line-height: 1.52;
    left: 12px;
    letter-spacing: 4px;
    top: 15px;
    font-style: italic;
}
.footer .footer-section3 .block-title {
    border-bottom: 2px solid #000000;
    width: 60%;
    left: 14px;
    position: relative;
}
.footer .footer-section1 .block-content {
    position: relative;
    line-height: 1.52;
    top: 67px;
    left: 125px;
    font-style: italic;
}
.footer .footer-section2 {
    position: relative;
    left: -89px;
}
.footer .footer-section2 {
    float: left;
    width: 33%;
}
.footer .footer-section3 {
    float: left;
    width: 33%;
}
.scroll-down {
    opacity: 1;
    -webkit-transition: all .5s ease-in 3s;
    transition: all .5s ease-in 3s;
}
.scroll-down {
    position: absolute;
    bottom: 28px;
    left: 55%;
    margin-left: -16px;
    display: block;
    width: 32px;
    height: 32px;
    background-size: 14px auto;
    border-radius: 50%;
    z-index: 2;
    -webkit-animation: bounce 2s infinite 2s;
    animation: bounce 2s infinite 2s;
    -webkit-transition: all .2s ease-in;
    transition: all .2s ease-in;
}
.scroll-down:before {
    position: absolute;
    top: calc(50% - 8px);
    left: calc(50% - 6px);
    transform: rotate(-45deg);
    display: block;
    width: 12px;
    height: 12px;
    content: "";
    border: 2px solid white;
    border-width: 0px 0 2px 2px;
}
section.ok {
    position: relative;
    top: 2000px;
}
.copy-rights {
    font-size: 16px;
    font-family: "Avant Garde", Avantgarde, "Century Gothic", CenturyGothic, AppleGothic, sans-serif;
    position: relative;
    top: 48px;
    display: block;
    font-size: 12px;
    text-align: center;
    color: rgb(40, 40, 41);
    font-style: italic;
    -moz-transform: matrix( 0.99963252426166, 0, 0, 0.99882633931212, 0, 0);
    -webkit-transform: matrix( 0.99963252426166, 0, 0, 0.99882633931212, 0, 0);
    -ms-transform: matrix( 0.99963252426166, 0, 0, 0.99882633931212, 0, 0);
    font-style: normal;
}
#leftBar {
    /*background-color: #030303;*/
    box-shadow: 2.996px 0.157px 7.65px 1.35px rgba(40, 40, 41, 0.25);
    border-right: solid #EF7440;
    border-right-width: 4px;
    top: 0px;
    bottom: 0px;
    left: 0px;
    height: 2278px;
    position: absolute;
    width: 131px;
    /*Commented today */
    /* opacity: 0.5;  */
}

/*

#holder {
  width: 700px;
   margin-left: 263px;
  padding-left: 50px;
  margin-top: 10px;
  height: 100%;
  float: right;
  position: fixed;

}

*/
@font-face {
    font-family: BEBAS;
    src: url("http://webdesigncove.com/fonts/BEBAS___.ttf")
}
h1.logo {
    font-size: 26px;
    font-style: normal;
    font-weight: normal;
    letter-spacing: normal;
    text-transform: uppercase;
    line-height: 1.2em;
    letter-spacing: -3px;
    color: white;
    text-align: center;
    padding-top: 10px;
}
h1.postTitle {
    font-family: BEBAS, Helvetica, Verdana, Sans-Serif;
}
p {
    font-family: Helvetica, Arial, sans-serif;
    font-size: 15px;
    font-style: normal;
    font-weight: normal;
    letter-spacing: .28em;
    line-height: 1.45em;
}
#navigation {
    padding: 0;
    margin: 0;
    text-align: center;
    position: relative;
    z-index: 3;
}
#navigation li {
    list-style-type: none;
    margin-bottom: 5px;
}
#navigation a:link {
    font-family: "ITC Avant Garde Gothic";
    font-size: 15px;
    font-style: normal;
}
#navigation a:visited {
    color: rgb(255, 255, 255);
}
#navigation a:hover {
    color: #FE5B1F;
}
.copy-right-text {
    font: Bold 12px 'Open Sans';
    color: #ffffff;
    padding-top: 10px;
    text-align: center;
}
nav ul {
    list-style-type:none;
    margin:0;
    padding:0;
}

nav ul li {
    display:inline-block;
    position:relative;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  padding: 10px 20px;
  display: block;
  width: 80px;
}

nav ul li a:hover {
  background: #00648C;
  cursor: pointer;
}

ul.dropdown-content {
  /*position: absolute;*/
  display: none;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<div class="top">
    <img id="clipimgA1" class="clippedmain" src="https://s28.postimg.org/tkwg9tmdp/homepage-image-1.png" alt="img">
    <img class="imgA1" src="https://s28.postimg.org/tkwg9tmdp/homepage-image-1.png">
</div>

	<div id="leftBar">
		<br />

		<svg id="clippedImg" width="0" height="0">
			<clipPath id="clipPolygon">
				<polygon points="1 100%,131 100%,130 0,0 0">
				</polygon>
			</clipPath>      
		</svg>
    
		<nav>
			<ul>
				<li class="dropdown">
					<a href="#">OUR DNA</a>
					<ul class="dropdown-content">
						<li><a href="#"><i>RISK</i></a></li>
					</ul>
				</li>
        
				<li class="dropdown">
					<a href="#">PROGRAMS</a>
					<ul class="dropdown-content">
						<li><a href="#"><i>PROFESSIONAL</i></a></li>
						<li><a href="#"><i>ADVENTURE SPORT</i></a></li>
						<li><a href="#"><i>ENTERTAINMENT</i></a></li>
						<li><a href="#"><i>COLLEGIATE</i></a></li>
						<li><a href="#"><i>INDIVIDUAL</i></a></li>
						<li><a href="#"><i>COMMERCIAL</i></a></li>
					</ul>
				</li>
        
				<li class="dropdown">
					<a href="#">RESEARCH</a>
					<ul class="dropdown-content">
						<li><a href="#"><i>CORPORATE SURVEY</i></a></li>
						<li><a href="#"><i>INDIVIDUAL SURVEY</i></a></li>
					</ul>
				</li>
        
				<li class="dropdown">
					<a href="#">STORIES</a>
				</li>				
			</ul>
		</nav>
	</div>


<ul class="above">
    <li><i class="fa fa-facebook-square"></i></li>
    <li><i class="fa fa-twitter-square"></i></li>
    <li><i class="fa fa-instagram"></i></li>
</ul>
<a class="login" href="#">Log In&nbsp;&nbsp;&nbsp;&nbsp;|</a>
<a class="signup" href="#">Sign Up</a>
<div class="leftBar-bottom">

</div>

<!-- End Side bar div-->
<div class="company-bio">
    <p align="center" style="font-family: Adelle PE">Hello World </p>
    <p align="center" style="font-family: Adelle PE">Nice Text! </p>
    <p align="center">Hello David</p>
</div>

＆＃13;

＆＃13;

＆＃13;

更新：我已从

评论position: absolute

ul.dropdown-content {
  /*position: absolute;*/
  display: none;
}

它立即实现了你想要的效果