Develop Reference

How to fix the a href tag clickable?

I have an html css code for notification dropdown box the issues is i can't able to click the tag and same time i tried with javaScript also not working i can't understand this issues please advice me how to make a clickable tag..
$('.toparea-right > .setting-area > li').on("click",function(){
$(this).siblings().children('div').removeClass('active');
$(this).children('div').addClass('active');
return false;
});
//------- remove class active on body
$("body *").not('.toparea-right > .setting-area > li').on("click", function() {
$(".toparea-right > .setting-area > li > div").removeClass('active');
return true;
});
.dropdowns {
background: #FFF none repeat scroll 0 0;
border: 1px solid #e1e8ed;
list-style: outside none none;
max-height: 294px;
overflow: auto;
padding-left: 0;
position: absolute;
right: -175px;
text-align: left;
top: 55px;
width: 440px;
opacity: 0;
visibility: hidden;
-webkit-transition: all 0.3s linear 0s;
-moz-transition: all 0.3s linear 0s;
transition: all 0.3s linear 0s;
}
.dropdowns.active{
opacity: 1;
visibility: visible;
}
.drops-menu {
list-style: outside none none;
padding-left: 0;
}
.drops-menu > li > a {
border-bottom: 1px solid #e1e8ed;
display: inline-block;
padding: 5px;
width: 100%;
}
.dropdowns > h6{
font-size: 15px;
}
.drops-menu > li > .tag {
color: #fff;
display: inline-block;
font-size: 11px;
padding: 0 6px;
position: absolute;
right: 0;
top: 0;
}
.drops-menu > li:nth-child(2n) > a {
background: whitesmoke none repeat scroll 0 0;
}
.drops-menu > li a img {
display: inline-block;
vertical-align: middle;
width: 10%;
border-radius: 100%;
margin-bottom: 10px;
margin-left: 10px;
height: 45px;
}
.mesg-meta {
display: inline-block;
padding-left: 30px;
vertical-align: middle;
width: -1%;
color: #000000;
padding-top: -21px;
top: 18px;
margin-top: 0px;
line-height: 25px;
}
.mesg-meta > h6 {
font-size: 13.5px;
font-weight: 600;
letter-spacing: 0.3px;
margin-bottom: 0;
text-transform: capitalize;
margin-left: -15px;
}
.mesg-meta > span {
color: #000000;
display: inline-block;
font-size: 12px;
line-height: 15px;
overflow-x: hidden;
text-overflow: ellipsis;
white-space: nowrap;
width: 100%;
}
.mesg-meta > i {
color: #000000;
font-size: 12px;
font-style: normal;
margin-left: -15px;
}
.drops-menu > li > a:hover {
background: #fafafa none repeat scroll 0 0;
}
.dropdowns > span {
border-bottom: 1px solid #ccc;
display: inline-block;
font-size: 14px;
padding: 0px 10px;
text-align: center;
width: 100%;
height: 59px;
margin-top: 0px;
}
.dropdowns > a.more-mesg {
display: inline-block;
font-size: 14px;
padding-bottom: 5px;
text-align: center;
text-transform: capitalize;
width: 100%;
}
.blue{background: #337ab7;}
.red{background: #ff0000;}
.green{background: #33b7a0;}
.dropdowns.active > a {
background: #fafafa none repeat scroll 0 0;
display: block;
font-size: 13px;
margin-bottom: 2px;
padding: 0px 0px;
text-align: center;
}
.dropdowns.active > a i {
font-size: 11px;
left: 8px;
position: absolute;
top: 10px;
}
.dropdowns.languages {
width: 100px;
}
.dropdowns.active > a:hover {
background: #f1f1f1 none repeat scroll 0 0;
}
<div class="toparea-right">
<ul class="setting-area">
<li>
<i class="far fa-newspaper"></i>
<span class="notifi-count" id="displayNotiCount">00</span>
Notifications
<div class="dropdowns">
<ul class="drops-menu">
<li>
<a href="view-post.php" onclick="window.location.href('view-post.php')" title="">
<div class="mesg-meta-notification">
<h6>Bruce Wayne</h6>
<span>is commented in your post!</span>
<i>0 min ago</i>
</div>
</a>
</li>
</ul>
</div>
</li>
</ul>
</div>
I attached my CSS and HTML code and i tried it's working but URL is opening in another tab. i need open the url in same tab please tell me the solution how to fix this.

In your code dropdown isn't ever made visible.
I think, you on click of "Notifications" you have to toggle(hide/show) dropdown by toggling(adding and removing) "active" class on Notifications tag.
Once your dropdown becomes visible. clicks should work as you desire.
Sample working code:
Notifications
<script>
function toggleDropdownVisibility(event) {
var notificationBell = event.target;
if (notificationBell.classList.contains('active')) {
notificationBell.classList.remove('active');
} else {
notificationBell.classList.add('active');
}
}
</script>
In addition to that please remove onclick="window.location.href('view-post.php')" as window.location.href is not a function instead it a property to which a url can be assigned. like window.location.href='view-post.php' . But you can completely remove this onclick as its not needed.

Your code looks fine here , except that I don't understand why you have opacity:0 and visibility:hidden on the .dropdown css class. These are making your control not accessible.
But once I remove these 2 properties in css worked for me (on last version of Chrome)
My advice:
For tags you can use this :
https://bootstrap-tagsinput.github.io/bootstrap-tagsinput/examples/. No need too much custom JS.

I have the solution for this, i tried that and it's working.
<div class="toparea-right">
<ul class="setting-area">
<li>
<i class="far fa-newspaper"></i>
<span class="notifi-count" id="displayNotiCount">00</span>
Notifications
<div class="dropdowns" id="MmailNoti">
<ul class="drops-menu">
<li>
<a href="view-post.php" onclick="window.location.href('view-post.php')" title="">
<div class="mesg-meta-notification">
<h6>Bruce Wayne</h6>
<span>is commented in your post!</span>
<i>0 min ago</i>
</div>
</a>
</li>
</ul>
</div>
</li>
</ul>
</div>
<script>
// When the user clicks on div, open the popup
function myFunction() {
var popup = document.getElementById("MmailNoti");
popup.classList.toggle("show");
}
</script>

Waypoints not working properly with my sidenav

I'm attempting to make a side nav on my site which adds the "active" class to it's four buttons but I cannot seem to make it work properly.
I've successfully added waypoints to the code but they always seem to be a little off and it takes a bit of extra scrolling from the user to activate the waypoint. I've also tried to follow the {offset} rules in the documentation but to no veil. They either stop working properly from last to first or they stop doing so from first to last.
In order to make the sidenav work, I've split the page in columns, as shown in the CSS below. Feel free to provide insight on the code, as this is a learning exercise and I KNOW my code is pretty dirty at the moment (particularly Javascript)
The side nav:
<div class="sidebar verticalized" id="sidebar-verticalized">
<ul id="sidenav" class="side nav-fixed hide-on-med-and-down">
<li class="side-link">
<a class="side-link-first link1" onclick="clickOne()" href="#">01</a>
</li>
<li class="side-link">
02
</li>
<li class="side-link">
03
</li>
<li class="side-link">
04
</li>
</ul>
</div>
The CSS:
html {
overflow: scroll;
overflow-x: hidden;
}
::-webkit-scrollbar {
width: 0px; /* remove scrollbar space */
background: transparent; /* optional: just make scrollbar invisible */
}
.page{
display: grid;
grid-template-columns: 300px auto;
}
.sidebar{
position:fixed;
width:300px;
}
.main{
grid-column-start:2;
}
.verticalized {
margin: 0px;
padding:0px;
float: left;
top: 50%;
transform: translateY(-50%) translateX(-50%);
left:9%;
}
my mess of JS (each section is declared below):
var $section1 = $('.header');
var $section2 = $('.portfolio');
var $section3 = $('.what-we-do');
var $section4 = $('.contact');
var $link1 = $('.link1');
var $link2 = $('.link2');
var $link3 = $('.link3');
var $link4 = $('.link4');
$section1.waypoint(function (){
$link1.addClass('active');
$link2.removeClass('active');
$link3.removeClass('active');
$link4.removeClass('active');
});
$section2.waypoint(function(){
$link1.removeClass('active');
$link2.addClass('active');
$link3.removeClass('active');
$link4.removeClass('active');
});
$section3.waypoint(function(){
$link1.removeClass('active');
$link2.removeClass('active');
$link3.addClass('active');
$link4.removeClass('active');
});
$section4.waypoint(function(){
$link1.removeClass('active');
$link2.removeClass('active');
$link3.removeClass('active');
$link4.addClass('active');
});
What I've tried so far:
Offset: bottom-in-view (sections are sometimes too large and therefore the old active element remains)
Offset: +/- x% (This fixes the issue from one end but not the other one: I could be going from 1 to 4 on links and it works, but 4 to 1 is broken and vice versa)
Any and all advice/tips are welcome. I'm trying to imitate the bootstrap navbar behaviour with active items for each section.

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css">
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!-- Popper JS -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
<style>
#import url('https://fonts.googleapis.com/css?family=Varela+Round');
html, body {
overflow-x: hidden;
height: 100%;
}
body {
background: #fff;
padding: 0;
margin: 0;
font-family: 'Varela Round', sans-serif;
}
.header {
display: block;
margin: 0 auto;
width: 100%;
max-width: 100%;
box-shadow: none;
background-color: #FC466B;
position: fixed;
height: 60px!important;
overflow: hidden;
z-index: 10;
}
.main {
margin: 0 auto;
display: block;
height: 100%;
margin-top: 60px;
}
.mainInner{
display: table;
height: 100%;
width: 100%;
text-align: center;
}
.mainInner div{
display:table-cell;
vertical-align: middle;
font-size: 3em;
font-weight: bold;
letter-spacing: 1.25px;
}
#sidebarMenu {
height: 100%;
position: fixed;
left: 0;
width: 250px;
margin-top: 60px;
transform: translateX(-250px);
transition: transform 250ms ease-in-out;
background:#414956;
}
.sidebarMenuInner{
margin:0;
padding:0;
border-top: 1px solid rgba(255, 255, 255, 0.10);
}
.sidebarMenuInner li{
list-style: none;
color: #fff;
text-transform: uppercase;
font-weight: bold;
padding: 20px;
cursor: pointer;
border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}
.sidebarMenuInner li span{
display: block;
font-size: 14px;
color: rgba(255, 255, 255, 0.50);
}
.sidebarMenuInner li a{
color: #fff;
text-transform: uppercase;
font-weight: bold;
cursor: pointer;
text-decoration: none;
}
input[type="checkbox"]:checked ~ #sidebarMenu {
transform: translateX(0);
}
input[type=checkbox] {
transition: all 0.3s;
box-sizing: border-box;
display: none;
}
.sidebarIconToggle {
transition: all 0.3s;
box-sizing: border-box;
cursor: pointer;
position: absolute;
z-index: 99;
height: 100%;
width: 100%;
top: 22px;
left: 15px;
height: 22px;
width: 22px;
}
.spinner {
transition: all 0.3s;
box-sizing: border-box;
position: absolute;
height: 3px;
width: 100%;
background-color: #fff;
}
.horizontal {
transition: all 0.3s;
box-sizing: border-box;
position: relative;
float: left;
margin-top: 3px;
}
.diagonal.part-1 {
position: relative;
transition: all 0.3s;
box-sizing: border-box;
float: left;
}
.diagonal.part-2 {
transition: all 0.3s;
box-sizing: border-box;
position: relative;
float: left;
margin-top: 3px;
}
input[type=checkbox]:checked ~ .sidebarIconToggle > .horizontal {
transition: all 0.3s;
box-sizing: border-box;
opacity: 0;
}
input[type=checkbox]:checked ~ .sidebarIconToggle > .diagonal.part-1 {
transition: all 0.3s;
box-sizing: border-box;
transform: rotate(135deg);
margin-top: 8px;
}
input[type=checkbox]:checked ~ .sidebarIconToggle > .diagonal.part-2 {
transition: all 0.3s;
box-sizing: border-box;
transform: rotate(-135deg);
margin-top: -9px;
}
</style>
<body>
<div class="header"></div>
<input type="checkbox" class="openSidebarMenu" id="openSidebarMenu">
<label for="openSidebarMenu" class="sidebarIconToggle">
<div class="spinner diagonal part-1"></div>
<div class="spinner horizontal"></div>
<div class="spinner diagonal part-2"></div>
</label>
<div id="sidebarMenu">
<ul class="sidebarMenuInner">
<li>Jelena Jovanovic</li>
<li>Company</li>
<li>Instagram</li>
<li>Twitter</li>
<li>YouTube</li>
<li>Linkedin</li>
</ul>
</div>
<div id='center' class="main center">
<div class="mainInner">
<div>PURE CSS SIDEBAR TOGGLE MENU</div>
</div>
<div class="mainInner">
<div>PURE CSS SIDEBAR TOGGLE MENU</div>
</div>
<div class="mainInner">
<div>PURE CSS SIDEBAR TOGGLE MENU</div>
</div>
</div>
</body>`enter code here`

Google Maps with Google MDL Tabs issues

I am trying implement a google maps view in a tab. I am using Google's Material Design Lite framework for the tabs.
I had a couple of problems for which I consulted the following SO questions. Neither offered perfect solutions but they did partially fix my issues.
Google Map Infowindow not showing properly
Problems with Google Maps API v3 + jQuery UI Tabs
However, some nagging bugs persist.
The first one regards the rendering of the map itself. I was having the usual map appearing in the top left corner only issue. I rearranged my javascript code like so:
$(function() {
$('.map-tab').click(function() {
initialize();
})
});
function initialize() {
var mapCanvas = document.getElementById('map');
var mapOptions = {
center: new google.maps.LatLng(44.5403, -78.5463),
zoom: 5,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(mapCanvas, mapOptions);
}
body {
font-family: sans-serif;
background: #eee;
}
a,
h1,
h2 {
color: #377ba8;
text-decoration: none;
}
h1,
h2 {
font-family: 'Georgia', serif;
margin: 0;
}
h1 {
border-bottom: 2px solid #eee;
}
h2 {
font-size: 1.2em;
}
fieldset {
/*float: left;*/
clear: both;
width: 100%;
margin: 0 0 -1em 0;
padding: 0 0 1em 0;
border-style: none;
border-top: 1px solid #BFBAB0;
/*background-color: #F2EFE9;*/
}
legend {
margin-left: 1em;
color: #000000;
font-weight: bold;
}
legend span {
/*position: absolute;*/
/*margin-top: 0.5em;*/
/*font-size: 135%;*/
}
fieldset ol {
padding: 0 0 0 2em;
list-style: none;
}
ul {
padding: 0 1em 0 1em;
list-style: none;
}
fieldset li div {
float: left;
clear: left;
width: 100%;
padding-bottom: 1em;
}
fieldset.submit {
float: none;
width: auto;
border: 0 none #FFF;
padding-left: 12em;
}
label {
float: left;
width: 10em;
margin-right: 1em;
text-align: right;
}
img {
max-width: 100%;
max-height: 100%;
height: auto;
width: auto\9;
/* ie8 */
}
td {
border: 1px;
}
.page {
margin: 2em auto;
width: 65em;
/*border: 5px solid #ccc;*/
/*padding: 0.8em;*/
background: white;
}
.mdl-layout__content {
background: white;
}
.entries {
list-style: none;
margin: 0;
padding: 0;
}
.entries li {
margin: 0.8em 1.2em;
}
.entries li h2 {
margin-left: -1em;
}
.add-entry {
font-size: 0.9em;
border-bottom: 1px solid #ccc;
}
.add-entry dl {
font-weight: bold;
}
.metanav {
/*text-align: right; font-size: 0.8em;*/
padding: 0.3em;
margin-bottom: 1em;
background: #fafafa;
}
.flash {
background: #cee5F5;
padding: 0.5em;
border: 1px solid #aacbe2;
}
.error {
background: #f0d6d6;
padding: 0.5em;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<link href="https://storage.googleapis.com/code.getmdl.io/1.0.4/material.indigo-blue.min.css" rel="stylesheet" />
<script src="https://storage.googleapis.com/code.getmdl.io/1.0.4/material.min.js"></script>
<link rel="stylesheet" href="https://fonts.googleapis.com/icon?family=Material+Icons">
<script src="https://maps.googleapis.com/maps/api/js?v=3.20"></script>
<style type="text/css">
#map {
width: auto;
/*500px;*/
height: 400px;
overflow: hidden;
max-width: none;
/*background-color: #CCC;*/
}
#map img {
max-width: none;
}
</style>
<div class="mdl-tabs mdl-js-tabs mdl-js-ripple-effect">
<div class="mdl-tabs__tab-bar">
Listings
Map View
Compare Selections
</div>
<div class="mdl-tabs__panel is-active" id="listings-panel">
</div>
<div class="mdl-tabs__panel" id="map-panel">
<div id="map"></div>
</div>
<div class="mdl-tabs__panel" id="compare-panel">
</div>
</div>
This renders the map part nicely on initial viewing. But once you start switching around the tabs, it returns to only rendering on the top corner of the canvas. (However if you click on the map's tab a second time in succession, it renders perfectly again.)
The second issue is that the map controls appear squished vertically. The only fix I could find was to set the max-width of the img to none. I have tried that but to no avail.
The code snippet above illustrates the issue I am having pretty well. Any ideas on how to fix this would be greatly appreciated!

Your problems are
You have this css applying to img which is corrupting the controls:
img {
max-width: 100%;
max-height: 100%;
height: auto;
width: auto\9;
/* ie8 */
}
You need to override both max-width and max-height
#map img {
max-width: none !important;
max-height: none !important;
}
You need to trigger the map resize event once your tab is displayed
proof of concept fiddle

Left and right arrows do not fade out when moved out of the image

I am new to web development and needed to provide navigating to images with left and right arrows. I need the arrows to fade in when the mouse is hovered over the image and fade out when moved out of the image. I can see the arrows fade in but not fade out. Somewhere near the image tip I see a small flicker but not really the fadeout and fade in as I hover in and out of the images. I tried to change the opacity to 1 and 0 as suggested by related articles in stackoverflow but it doesnt seem to work. Can someone please tell me where I am going wrong?Any help is appreciated?
Here is a sample html:
<div id="centralcontent">
<div id="slideshow">
<ul id="nav">
<li id="prev"></li>
<li id="next"></li>
</ul>
<div id="slides">
<img src="images/nature/imageone.jpg" width="1200" height="750">
</div>
</div>
</div>
The CSS is :
#centralcontent
{
padding-top:40px;
}
#slideshow {
width:1200px;
height:750px;
padding: 15px 0 0 12px;
margin: 0 auto;
position: relative;
z-index: 5;
margin-bottom:0px;
}
#slideshow ul#nav
{
display: none;
list-style: none;
position: relative;
top: 300px;
z-index: 10;
}
#slideshow ul#nav li#prev
{
float: left;
margin: 0 0 0 20px;
}
#slideshow ul#nav li#next
{
float: right;
margin: 0 50px 0 0;
}
#slideshow ul#nav li a
{
display: block;
width: 80px;
height: 80px;
}
#slideshow ul#nav li#prev a {
border-top: 40px solid transparent;
border-bottom: 40px solid transparent;
border-right: 40px solid gray;
width: 0;
height: 0;
}
#slideshow ul#nav li#next a {
border-top: 40px solid transparent;
border-bottom: 40px solid transparent;
border-left: 40px solid gray;
width: 0;
height: 0;
}
#slides {
margin: 0 0 20px 0;
}
My javascript is :
$(document).ready(function() {
$("#slideshow").hover(function() {
$("ul#nav").fadeIn("slow");
},function() {
$("ul#nav").fadeOut("slow");
});
});

You code seems to work for me here: JS Fiddle
However, I would recommend using a CSS only approach. Instead of giving the arrows display: none;, give them an opacity of zero and transition that to full opacity when the wrap is hovered:
CSS Only Approach - JS Fiddle
ul#nav {
opacity: 0;
transition: 1s;
}
#slideshow:hover ul#nav {
opacity: 1;
}

How to slideToggle text over an image?

I’ve written this code which works. Basically, when user hovers a image, a text appears over the image.
It’s a gallery so i need to use $(this).childrenin order to make the correct element to show.
What i don’t understand, i can’t make the h2 .nom_realisation slide toogle. I’ve tried a couple of things without success.
I’m sure it’s pretty simple . If anyone can point me in the right direction ?
DEMO : http://jsfiddle.net/Vinyl/725hcc62/1/
CODE :
CSS
.hide {
display : none;
}
.text {
z-index:100;
position:absolute;
top:0;
left:0;
height:100%;
width: 100%;
text-align: center;
display: table;
background: rgb(134, 0, 0);
/* Fall-back for browsers that don't support rgba */
background: rgba(134, 0, 0, .7);
}
h2.nom_realisation {
color: #ffffff !important;
font-family:'Oswald', sans-serif;
font-size: 30px !important;
font-weight: 300 !important;
text-transform: uppercase;
text-decoration: none !important;
margin: 0;
padding: 0;
vertical-align: middle;
display: table-cell;
width: 100%;
}
h2.nom_realisation a, h2.nom_realisation a:hover {
color: #ffffff !important;
text-decoration: none;
}
.container_img img {
position:absolute;
left:0;
top:0;
}
.container_img {
height:232px;
width:232px;
position:relative;
}
.image_test {
width:232px;
height: auto;
}
HTML
<div class="container_img">
<div class="container_nom_realisation hide">
<div class="text">
<h2 class="nom_realisation">Lorem ipsum</h2>
</div>
</div>
<img class="image_test" src="https://www.google.fr/images/srpr/logo11w.png" />
</div>
JavaScript / jQuery
(function ($) {
$(document).ready(function () {
$(".container_img").hover(function () {
$(this).children('.container_nom_realisation').show('slow');
$(this).children('.text').slideToggle('slow');
}, function () {
$(this).children("img").fadeTo(200, 1)
.end().children(".text").hide();
$(this).children('.container_nom_realisation').hide('slow');
//.end().children(".hover").slideToggle("slow");
});
});
})(jQuery);

.nom_realisation is not a chid of .container_img, so you need .find() instead of children.
You are going to have trouble slide animating a table-cell element. Either don't display it this way or (because I assume you use table-cell for the vertical centre, have another element acting as table cell wrapping your <h2>:
HTML
<div class="container_img">
<div class="container_nom_realisation hide">
<div class="text">
<div class='table-cell'>
<h2 class="nom_realisation">Lorem ipsum</h2>
</div>
</div>
</div>
<img class="image_test" src="https://www.google.fr/images/srpr/logo11w.png" />
</div>
CSS
.hide {
display : none;
}
.text {
z-index:100;
position:absolute;
top:0;
left:0;
height:100%;
width: 100%;
text-align: center;
display: table;
background: rgb(134, 0, 0);
/* Fall-back for browsers that don't support rgba */
background: rgba(134, 0, 0, .7);
}
.table-cell {
vertical-align: middle;
display: table-cell;
}
h2.nom_realisation {
color: #ffffff !important;
font-family:'Oswald', sans-serif;
font-size: 30px !important;
font-weight: 300 !important;
text-transform: uppercase;
text-decoration: none !important;
margin: 0;
padding: 0;
width: 100%;
}
h2.nom_realisation a, h2.nom_realisation a:hover {
color: #ffffff !important;
text-decoration: none;
}
.container_img img {
position:absolute;
left:0;
top:0;
}
.container_img {
height:232px;
width:232px;
position:relative;
}
.image_test {
width:232px;
height: auto;
}
JavaScript
(function ($) {
$(document).ready(function () {
$(".container_img").hover(function () {
$(this).children('.container_nom_realisation').show('slow');
$(this).find('.nom_realisation').slideToggle('slow');
}, function () {
$(this).children("img").fadeTo(200, 1)
.end().children(".text").hide();
$(this).children('.container_nom_realisation').hide('slow');
//.end().children(".hover").slideToggle("slow");
});
});
})(jQuery);
JSFiddle

I do not know if that's what you want, but if it is what I'm thinking, you can do it with pure CSS...
<div class="container-img">
<div class="image-title">LOREM IPSUM</div>
<img class="image" src="https://www.google.fr/images/srpr/logo11w.png" />
</div>
.container-img{
position: relative;
background: #cccccc;
width: 230px;
overflow: hidden;
}
.container-img .image-title{
position: absolute;
background: rgba(0,0,0,0.8);
opacity: 0;
margin: 0 auto;
padding: 200px 0 0 0;
width: 100%;
height: 100%;
min-height: 100%;
color: #ffffff;
text-align: center;
-webkit-transition: all 0.35s;
transition: all 0.35s;
z-index: 10;
}
.container-img:hover .image-title{
opacity: 1;
padding: 35px 0 0 0;
}
.container-img .image{
position: relative;
max-width: 100%;
z-index: 0;
}
Here is a Fiddle: http://jsfiddle.net/rk16vhwe/

I don't think you can a have an underscore in the ccs classname: nom_realisation
Try renaming it everywhere: as nomRealisation for example
Which characters are valid in CSS class names/selectors?

just get rid of:
$(this).children
Also, you are calling $(this) too many times! Call it once. Then use the variable.
var this = $(this);