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我試圖在圖像懸停上顯示文本。 它工作正常與div懸停，但我希望它只在圖像懸停，這似乎並沒有發生。 下面是我的代碼片段..在img hover上顯示文字
$(document).ready(function(){
$(".navbar-links").click(function(){
//alert("hi1");
$(".navbar-links").removeClass("active");
$(this).addClass("active");
});
var portfolio_offset = $("#portfolio-section").offset().top;
var about_offset = $("#about-section").offset().top;
var contact_offset = $("#contact-section").offset().top;
$(window).scroll(function(){
//alert(about_offset);
//alert(portfolio_offset);
//alert(contact_offset);
$(".navbar-links").removeClass("active");
var scrolled_offset = $(this).scrollTop();
if(scrolled_offset>=contact_offset-1)
{
$("#contact_link").addClass("active");
}
else if(scrolled_offset>=portfolio_offset)
{
//alert(scrolled_offset);
$("#portfolio_link").addClass("active");
//$("#contact_link").removeClass("active");
}
else
{
$("#about_link").addClass("active");
//$("#contact_link").removeClass("active");
}
});
$("button").click(function(){
window.open($(this).val(),"_blank");
});
});button {
background : transparent;
border : 1px solid white;
padding : 0px;
margin : 10px;
}
i {
border : 0px;
}
#about-section {
background-color : #fd746c;
color : black;
}
#portfolio-section {
background-color : #904e95;
color : black;
}
#contact-section {
background-color : #4ca1af;
color : black;
}
.active {
border : 1px solid white;
}
#navbar-menu {
text-align : center;
}
.heading {
font-family : Sofia;
}
.navbar {
background-color : black;
}
.content {
font-family : Lily Script One;
}
.navbar-brand {
font-size : 27px;
}
.content-div {
text-align : center;
display : inline-block;
vertical-align : middle;
float : none;
}
.navbar-links {
font-size : 20px;
}
.center {
text-align : center;
}
img {
border : 1px solid black;
margin : auto;
top : 0;
left : 0;
right : 0;
bottom : 0;
box-shadow : 10px 10px 20px black;
}
.project-img {
max-width : 70%;
max-height : 70%;
}
.fa {
padding : 20px;
font-size : 45px;
width : 100px;
text-align : center;
text-decoration : none;
background : #2c4762;
color: white;
margin : 0px 0px;
border : 1px solid white;
}
.fa:hover {
opacity : 0.7;
}
#proj_img_1{
position : relative;
text-align : center;
}
#img_desc {
position : absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
background : grey;
color : black;
visibility : hidden;
opacity : 0;
transition : opacity .5s, visibility .5s;
}
#proj_img_1:hover #img_desc {
visibility : visible;
opacity : 1;
}<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container-fluid">
<div class="row" id="navbar-section">
<div class="col-md-offset-1 col-md-10 col-sm-offset-1 col-sm-10">
<div class="navbar-header heading">
<button class="navbar-toggle" data-toggle="collapse" data-target="#navbar-menu"><span class="glyphicon glyphicon-triangle-bottom"></span></button>
<a href="#" class="navbar-brand">Portfolio Page</a>
</div>
<div id="navbar-menu" class="collapse navbar-collapse">
<ul class="nav navbar-nav navbar-right heading">
<li class="navbar-links active" id="about_link"><a href="#about-section">About</a><li>
<li class="navbar-links" id="portfolio_link"><a href="#portfolio-section">Portfolio</a><li>
<li class="navbar-links" id="contact_link"><a href="#contact-section">Contact</a><li>
</ul>
</div>
</div>
</div>
</div>
</nav>
<div class="container-fluid" id="scrollable-div">
<div class="row" id="about-section">
<br>
<br>
<div class="center heading">
<h1>About</h1>
</div>
<div class="col-md-offset-1 col-md-10 col-sm-offset-1 col-sm-10 col-xs-offset-1 col-xs-10">
<div class="row">
<div class="col-md-offset-1 col-md-6 col-sm-offset-1 col-sm-6 col-xs-offset-1 col-xs-10 content-div content">
<h3>Rishabh Kashyap</h3>
<h3>Full Stack Web Developer</h3>
<h3>Key Interests - JavaScript & MEAN Stack</h3>
<h3>Worked as an intern @ Sapient Global Markets</h3>
<h4><i>"Never be afraid to take risks. If you succeed, you can lead and if you fail, you can guide."</i><h4>
<h4>- Swami Vivekananda</h4>
<h3>Indeed. The motto, I try to live by. Professionally, as well as, Personally.</h3>
</div>
<div class="col-md-4 col-sm-4 col-xs-12 content-div">
<img class="img-responsive project-img" alt="my image" src="https://lh3.googleusercontent.com/34CJNU0DexpintEhsM5-zcZdT_7mRWVA6dE-7f122WM3xj4xFI0nXYQhXyEG8tyrd4piHPHPGtCNtu_o5vqZ2eFFH2W9YS4ekKCqw7wgZzAjsKD8hdNoV5DrARz7I-BRljjksmdfHxoHaGIgwxcNYRJkEBa2FLIhbluVGZo1qN3zZ1ZJ1WpRU27mBbrCScNzazuOFtY0lOBX4JAKd7yGlC7ILwg4gAy-KsN-ZJz54PoNeCblgrz3jGsF8YvEf5Hc-V3kV8DtrDiKiwTpXPowvrLdldS-rIlOpjq1LrbPVNxWUNB1YieiqOUo1AEVYaS9WxiIFae2etL7Jb4nAW9MkLHE-YvQZ4VVcntRfXS3CBnuoy6EPHu2vfevnNeK9lgANs4rb1MNyMCxOACWmn45_vZKZoPfnmk_cyVzt7m2vFZUXPMdyeSRrViQD9VteriL89XHZlItrlgIhXI1vt5JAASHdOYrNV3CTpWMGPfzQk0BfQbbr2qcxnbgbSyEmK4M1wIloFQ0O_q-MCOdffySKCmct8iHRRrAcG5cWF_ArcX5GptL3tHAQHu9UCyfrjwIyI28NbrgZM0NkxxmpRAV5nRJGQetgxewxGaS2A6xfWnlW8jP-P4z=w479-h638-no?.jpg"/>
</div>
</div>
</div>
</div>
<div class="row" id="portfolio-section">
<br>
<br>
<div class="center heading">
<h1>Portfolio</h1>
</div>
<div id="proj_img_div" class="col-md-offset-1 col-md-10 col-sm-offset-1 col-sm-10 col-xs-offset-1 col-xs-10">
<img id="proj_img_1" class="img-responsive project-img" alt="portfolio page" src="http://www.thefamouspeople.com/profiles/images/swami-vivekananda-3.jpg"/>
<h4 id="img_desc"><i>A tribute page to Swami Vivekananda using basic HTML & Bootstrap.</i></h4>
</div>
</div>
<div class="row" id="contact-section">
<br>
<br>
<div class="center heading">
<h1>Contact Me</h1>
</div>
<div class="col-md-offset-1 col-md-10 col-sm-offset-1 col-sm-10 col-xs-offset-1 col-xs-10">
<div class="center content">
<h4><i>[email protected]</i></h4>
</div>
<br>
<div class="center">
<button value="https://www.facebook.com/rishabh.kashyap.940436"><i class="fa fa-facebook"></i></button>
<button value="https://twitter.com/iamrkcheers"><i class="fa fa-twitter"></i></button>
<button value="https://github.com/iamrkcheers"><i class="fa fa-github"></i></button>
<button value="https://www.freecodecamp.com/iamrkcheers"><i class="fa fa-free-code-camp"></i></button>
<button value="https://www.linkedin.com/in/rishabh-kashyap-735879117/"><i class="fa fa-linkedin"></i></button>
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</div>
</div>
</div>
<div class="row" id="meta-section">
<div class="col-md-offset-1 col-md-10 col-sm-offset-1 col-sm-10 col-xs-offset-1 col-xs-10">
</div>
</div>
</div>以下是我的工作代碼.. https://codepen.io/iamrkcheers/pen/KmxEpw
任何幫助表示讚賞。謝謝。
此外，我希望文本只顯示在圖像的頂部，而它出現在完整div的頂部。 如何實現？
謝謝。
「消息」： 「的ReferenceError：$沒有定義」， –
你忘了包括JQuery的的例子。 –
@JamesDouglas其'codepen.io'代碼片段。 jQuery是通過擴展添加的，所以不需要通過腳本標籤添加。 與Bootstrap一樣。 – iamrkcheers