Develop Reference

Problem hiding a click-triggered div when anywhere on the page is clicked while still keeping everything selectable

Say a menu is triggered when a button is clicked, now
1_ For canceling it, the user has to be able to click anywhere on the page (not only on the same button),
2_ Everything else on the page must still remain selectable throughout this process.
Here's what I've tried:
$(".dad").click(function() {
$(".son").show();
$(".mask").show();
});
$(".mask").click(function() {
$(".son").hide();
$(".mask").hide();
});
.dad {
background: greenyellow;
width: 20px;
height: 20px;
margin-top: 100px;
z-index: 2;
}
.son {
position: relative;
left: 20px;
bottom: 100px;
width: 100px;
height: 100px;
display: none;
background: tomato;
z-index: 2;
}
p {
z-index: 2;
}
.mask {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1;
display: none;
}
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js "></script>
<p>This is a paragraph</p>
<div class="dad">
<div class="son"></div>
</div>
<div class="uncle"></div>
<div class="mask"></div>
This code satisfies the first condition(the ".son" hides when anywhere on the page is clicked), but the second condition isn't met. Because when the ".son" is visible, the paragraph is not immediately selectable, unless the user does another click. Although this seems like a minor problem, sometimes it can become a little annoying, thus is a requirement. (I've also tried other ways. E.g. CSS "pointer-events: none" on the mask, but it has a different purpose, because it also cancels click events). So how could it be done? Thanks in advance.
Note: This is not solely a CSS question, I embrace any Javascript or Jquery answers too should they give easier/better solutions.

Hope it helpful...
$(".dad").click(function() {
$(".son").show();
});
$(document).click(function (e) {
var container = $(".dad");
if(!container.is(e.target) &&
container.has(e.target).length === 0) {
$(".son").hide();
}
});
.dad {
background: greenyellow;
width: 20px;
height: 20px;
margin-top: 100px;
z-index: 2;
}
.son {
position: relative;
left: 20px;
bottom: 100px;
width: 100px;
height: 100px;
display: none;
background: tomato;
z-index: 2;
}
p {
z-index: 2;
}
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.0/jquery.min.js "></script>
<p>This is a paragraph</p>
<div class="dad">
<div class="son"></div>
</div>
<div class="uncle"></div>

Creating hover-visible buttons

I am trying to create some options that are hidden unless the user goes with the mouse in a specific area. Let's take an example: Google+ profile page:
When you go with the mouse cursor on the picture, the button appears.
Here is what I tried:
var $button = $("#button");
$("#profile-picture").on("mouseover", function() {
$button.show();
}).on("mouseout", function() {
$button.hide();
});
#profile-picture {
width: 150px;
height: 100px;
}
#button {
position: absolute;
display: none;
width: 30px;
height: 30px;
top: 45px;
left: 70px;
opacity: 0.75;
cursor: pointer;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<img src="http://datastore01.rediff.com/h450-w670/thumb/69586A645B6D2A2E3131/ckez1n08svw8f3en.D.0.Sidharth-Malhotra-Student-of-the-Year-Photo.jpg" id="profile-picture">
<img src="http://img3.wikia.nocookie.net/__cb20090227194712/java/images/0/0e/Camera_icon.gif" id="button" />
The problem is that when I go with the cursor over the #button, it flickers. What can I do?

The easiest method is placing them both in the same div, and then using mouseover/out for that div. Example: http://jsfiddle.net/1g24mhhz/
HTML:
<div id="profile-picture">
<img src="http://datastore01.rediff.com/h450-w670/thumb/69586A645B6D2A2E3131/ckez1n08svw8f3en.D.0.Sidharth-Malhotra-Student-of-the-Year-Photo.jpg" class="profile">
<img src="http://img3.wikia.nocookie.net/__cb20090227194712/java/images/0/0e/Camera_icon.gif" id="button" />
</div>
CSS edits:
#profile-picture .profile {
width: 150px;
height: 100px;
}
EDIT: You should probably not use an ID for the div, since you probably have multiple profiles on a page. This was just to show it with the code you had already used.

A simple css approach. You can have a click event on the button :)
$('#button').on('click', function() {
alert('I am clickable');
});
#profile-picture,
.hover-wrap {
width: 150px;
height: 100px;
}
#button {
position: absolute;
display: none;
width: 30px;
height: 30px;
top: 0px;
left: 0px;
bottom: 0;
right: 0;
margin: auto;
opacity: 0.75;
cursor: pointer;
}
.hover-wrap {
position: relative;
}
.hover-wrap:hover #button {
display: block;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div class="hover-wrap">
<img src="http://datastore01.rediff.com/h450-w670/thumb/69586A645B6D2A2E3131/ckez1n08svw8f3en.D.0.Sidharth-Malhotra-Student-of-the-Year-Photo.jpg" id="profile-picture">
<img src="http://img3.wikia.nocookie.net/__cb20090227194712/java/images/0/0e/Camera_icon.gif" id="button" />
</div>

You can use CSS:hover properties to show/hide the button, no Javascript needed.
The trick is a sibling selector:
#profile-picture:hover + #button, #button:hover{
display:block;
}
Try this:
http://jsfiddle.net/6s9200ab/

div popup not working

What I am doing wrong?
When you click on class divtop, it should show a div popup in the middle of the page. At that time back page should become not clickable. escape or a button in popup will close it.
<html lang="en" class=" en">
<head>
<title>My Test Popup</title>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<style type="text/css">
.divtop
{
width: 800px;
height: 300px;
border:solid;
}
.divbottom
{
top: 400px;
}
.localmenu {
border: 1px solid black;
background: #fff;
margin-left : auto;
top: 50px; width: 300px;
padding-top: 25px;
margin-top: 100px;
height: 150px;
}
.appContent{
width: 800px;
border:solid;
height: 600px;
display: block;
margin-left: auto;
margin-right: auto;
}
.maincontent{
width: 100%;
}
</style>
</head>
<body>
<div class="appContent" >
<div class="maincontent" >
<div class="divtop" >Top</div>
<div class="divtop divbottom" >Bottom</div>
</div>
<div id="popup" style="width : 100%; height: 600px;display: none;">
<div class='localmenu'>
Text in Div Popup<br/>
<button id="btnHide">Close</button><br/>
</div>
</div>
</div>
<script>
$(document).ready(function() {
$('.divtop').click(function() {
$('#popup').show().css("top", "500px").animate({top: 50}, 200);
$('.mainContent').css("background-color", "grey");
});
$('#btnHide').click(function() {
$('#popup').hide();
});
});
</script>
</body>
</html>

Fiddle
I added some CSS to your #popup and it's now all in the CSS (not inline in the html). Changed also your jQuery animate to 50px, instead of just 50.
I think you have small adjustments to do to the CSS, like in .localmenu I'm not sure why you have both padding-top: 25px; margin-top: 100px;.
CSS
#popup {
position:absolute;
display: none;
float: left;
left:30%;
z-index:1;
}
#popoverlay {
position: fixed;
display:none;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: #000;
opacity: 0.5;
}
jQuery
$(document).ready(function () {
$('.divtop').click(function () {
$('#popoverlay').show();
$('#popup').show().css("top", "500px").animate({
top: "50px"
}, 200);
$('.mainContent').css("background-color", "grey");
});
$('#btnHide').click(function () {
$('#popup').hide();
$('#popoverlay').hide();
});
});
HTML
<div class="appContent">
<div class="maincontent">
<div class="divtop">Top</div>
<div class="divtop divbottom">Bottom</div>
</div>
<div id="popup">
<div class='localmenu'>Text in Div Popup
<br/>
<button id="btnHide">Close</button>
<br/>
</div>
</div>
</div>

To get it to work properly, even if there is a vertical scroll bar, you have to use position "fixed". Place popup as a direct child of body and make it's position: fixed, and width and height 100%. Place localmenu as a direct child of body as well. Working example at jsbin.
Html:
<div id="popup">
<!--// This is to stop the user from interacting with the content in the back
// and to give a visual clue about that
-->
</div>
<div class='localmenu'>
<div>
Text in Div Popup<br/>
<button id="btnHide">Close</button><br/>
</div>
</div>
<div class="appContent" >
<div class="maincontent" >
<div class="divtop" >Top</div>
<div class="divtop divbottom" >Bottom</div>
</div>
</div>
CSS:
//Use opacity to give a visual clue. Please note that this doesn't work in -all- browsers
#popup {
position: fixed;
width: 100%;
height: 100%;
display: none;
background: black;
opacity: .5;
top: 0;
left: 0;
}
//This is just to be able to center the actual menu
.localmenu {
top: 20%;
left: 0;
width: 100%;
position: fixed;
height: 150px;
display: none;
}
.localmenu > div {
border: 1px solid blue;
background: #fff;
margin-left : auto;
margin-right: auto;
width: 300px;
height: 150px;
}
Javascript: (This is mostly the same, although I removed the animate, because I don't know exactly how it works and it needs to end at 'top: 0'. As localmenu and popup are seperate, we show them seperate as well.)
$(document).ready(function() {
$('.divtop').click(function() {
$('#popup').show().animate(200);
$('.localmenu').show();
//$('.mainContent').css("background-color", "grey");
});
$('#btnHide').click(function() {
$('#popup').hide();
$('.localmenu').hide();
});
});

To block the div tags at the back from being clickable:
Add a div with the following style in your HTML. Im gonna call it overlay.
.overlay {
width: 100%;
height: 100%;
background-color: #000;
left: 0;
opacity: .8;
position: absolute;
top: 0;
z-index: 10000;
display: none;
}
This will essentially cover up your page when shown up.
To center your popup:
I added some extra styles to #popup and removed some from .localmenu. You were missing position: absolute and z-index, added those in. (z-index of popup must be > z-index of overlay)
#popup {
background: #fff;
position :absolute;
left : 40%;
width : 300px;
height: 600px;
height: 150px;
display: none;
z-index: 10001;
}
.localmenu
{
border: 1px solid black;
}
Then, in your JS,
In your animate method, I changed 50px to 30% to center div#popup
Added code to hide and show .overlay along with #popup.
After the changes,
$(document).ready(function () {
$('.divtop').click(function () {
$('#popup').show().css("top", "500px").animate({
top: "30%"
}, 200);
$('.overlay').show();
});
$('#btnHide').click(function () {
$('#popup,.overlay').hide();
});
});
Demo
http://jsbin.com/olasog/1
Code
http://jsbin.com/olasog/1/edit

Try this:
$(document).ready(function() {
$('.divtop').click(function() {
var div = $('.appContent');
$('.localmenu').css({'margin': '200px auto'});
$('#popup').show().css({top: "500px", position: 'absolute', width: div.width(), height: div.height()}).animate({top: 0}, 200);
$('.mainContent').css("background-color", "grey");
});
$('#btnHide').click(function() {
$('.mainContent').css("background-color", "");
$('#popup').hide();
});
});

Google search results style drop down button

I'm looking for a simple JavaScript or some CSS for a drop down menu, just like the one on Google search results. Small arrow when clicked shows 'Cached', 'Similar' options.

The basic implementation is pretty easy, but you can start from here and make it more nice looking and better UI experience:
<div class="button">
<span class="dropdown-button-text">Dropdown</span>
<div class="popup">
Popup content
</div>
</div>
<style type="text/css">
.button { position: relative; display: inline-block; min-width: 100px; }
.popup { position: absolute; top: 100%; left: 0; display: none; min-width: 300px; min-height: 50px; border: 1px solid #9F9F9F; }
</style>
<script>
$("body").delegate(".dropdown-button-text", "click", function () {
var popup = $(this).parent().children(".popup");
if (popup.is(":visible")) {
popup.hide();
} else {
popup.show();
}
});
</script>

onclick, how can I hide a <div> and show the content behind it?

How can I make this <div> hide itself when a click occurs outside of it? I would like to be able to hide it and then show the rest of the content of the page that is behind it.
<html>
<style>
.overlay
{
position: fixed;
top: 0;
left: 0;
height: 100%;
width: 100%;
background: #fff;
opacity: 0.5;
filter: alpha(opacity=50);
z-index: 80;
}
.popupContent
{
background: #fff;
padding: 5px;
border: 1px solid black;
position: fixed;
top: 100px;
left: 400px;
bottom: 365px;
right: 300px;
z-index: 81;
}​
</style>
<div id="initialPopup">
<div class="overlay"></div>
<div class="popupContent" onclick="hideInitialPopup()">
Good Morning, Please Upload Your File Today!
</div>
</div>
​
<script>
function hideInitialPopup() {
document.getElementById("initialPopup").style.display = "block";
$("popupContent").mouseup(function(){
if(! mouse_is_inside) $
}​
</script>
</html>

Use jQuery's event.target to determine if you've clicked within the box or not:
$(document).on('click',function(e) {
if (!$(e.target).closest('#my_div_id').length) {
$('#my_div_id').hide();
}
});​
http://jsfiddle.net/mblase75/PNYTX/

Usually when you use a mask with something like a popup/dialog, it's easiest just to attach a click handler to the mask itself that hides the popup/dialog when clicked.
Here is a jfiddle: http://jsfiddle.net/peterdev001/SDNUj/