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How hide div inside div when inner div mode left by jquery animate:left function?

I have html:
<div style='width:300px; height:40px; float:left;' class='outerDiv'>
<div style='width:200px; height:40px; float:right;' class='innerDiv'>
Some text
</div>
</div>
I try to make small move div.innerDiv by:
$('.innerDiv').animate({ left: '+=200px' });
Basic idea - when div.innerDiv move to border of div.outerDiv, div.outerDiv should hide part of div.innerDiv. I stuck on css styles on div's.

see here : jsfiddle
you need to set a position ( relative,absolute,fixed ) so the css left:200px can work.
css :
.outerDiv {
overflow:hidden;
}
.innerDiv {
position:relative;
}
jq :
$('.innerDiv').animate({ left: '+=200px' });
let me know if this was what you were looking for.

If i understand you correctly, you want to hide the outer div but show the inner div.
You should not hide parent div, because if you hide parent div, child will be hidden.
You can change the background color of the outer div.
js fiddle link
$('.innerDiv').animate({left:'200px'}, {
complete: function () {
$('.outerDiv').addClass('hide');
}
}
);

Smooth background images transition - Javascript

http://www.chooseyourtelescope.com/ (>> Please watch it on a minimum 15'' screen, the site is not entirely responsive yet and you wont see what I'm talking about)
When you hover the buttons (moon, planet, etc...) it changes the background. But the transition is buggy on Chrome (image0>blank>image1). And worknig on IE11 but sometimes with a lag. I didn t try with the other browsers.
How to make a smooth transition?
A quick fade Image0>image1, not image0>transition color>image1
Here is the code for the MOON button. Thats the same with the others.
(I don't know anything about Javascript. I found the script below on Stackoverflow.)
HTML
<div class="top-logos-home" id="top-logos-moon-front"><img src="moon-logo.png" alt="MOON"></div>
CSS
.image-home {
position: absolute;
width: 100%;
height: 100%;
background-image: url(Frontpage.jpg);
background-size: cover;
display:inline;
top:0;
}
JAVASCRIPT
jQuery(function(){
var $body = $('.image-home');
$('#top-logos-moon-front').hover(function(){
$body.css('background-image', 'url("Frontpage-moon.jpg")')
}, function() {
$body.css('background-image', '')
})
})

You need to change just your script code if you want smooth transtion.
jQuery(function(){
var $body = $('.image-home');
$('#top-logos-moon-front').hover(function(){
$body.fadeOut('slow',function(){
$body.css('background-image', 'url("Frontpage-moon.jpg")').fadeIn('slow');
});
}, function() {
$body.css('background-image', '')
})
})
If you want to do best solution for this you need follow the steps below.
Firstly you need to defined your path of images in the js with the below code.
var imgs = [
'http://i.imgur.com/DwLjYhh.jpg',
'http://i.imgur.com/gAlqfUU.jpg'
];
After this step, you need to add new attiribute your buttons like data-id.
<div class="top-logos-home" id="top-logos-moon-front" data-id='0'>
<img src="button_image_jpg" alt="MOON">
</div>
When you defined all variables, you need to detect the hover with your current code and choose the right image that is in imgs array for your background.
jQuery(function(){
var $body = $('.image-home');
$('#top-logos-moon-front').hover(function(){
$body.fadeOut('slow',function(){
//fade out slowly element and after change the style of inner elements then fade in slowly.
$body.css('background-image','url('+imgs[$(this).attr('data-id')]+')').fadeIn('slow');
});
});
});
In my personal opinion; Image transitions shouldn't manage in this way. Create different element for each planets. When user click the button, planets slip and overlapping. You can see a demo in the below code.
http://codepen.io/thegeek/pen/GDwCa

I found a solution by using the opacity property. Now its working perfectly.
HTML
<img id="background-moon-front" class="hover-backgrounds" src="Frontpage-moon.jpg" />
CSS
.hover-backgrounds {
opacity:0;
transition: opacity 0.6s linear;
top:0;
position:absolute;
background-size: 100%;
}
JAVASCRIPT
$(document).ready(function (e) {
$("#top-logos-lune-front").hover(function (e) {
$("#background-moon-front").css("opacity", "1");
}, function() {
$("#background-moon-front").css("opacity", "0")
})
});

What is the best way to show icon/button only when hover on an object ?

I have a cover-image like this
When the user hover on my image, I want to :
show an camera icon on the top left, and
hide it back when the mouse move away.
I have tried
CSS
<style type="text/css">
#cover-img:hover{
opacity: .9;
}
#nav-upload-icon{
top: 10px;
left: 10px;
color: red;
z-index: 1000;
}
</style>
HTML
<img id="cover-img" src="/material/img/profile-menu.png" height="130px">
<i id="nav-upload-icon" class="md md-camera hidden"></i>
JS
$("#cover-img").hover(function() {
$("#nav-upload-icon").removeClass( "hidden" );
});
I couldn't get it to behave what I expected to see.
What is the best way to implement something like that ?
JSFiddle

There is no reason to use JavaScript if that is the actual html code, you can use the next sibling selector with hover.
#cover-img:hover + #nav-upload-icon,
#nav-upload-icon:hover {
visibility: visible;
}
#nav-upload-icon {
visibility : hidden;
}

bind mouseout event to remove add the hidden class again
$("#cover-img").hover(function() {
$("#nav-upload-icon").removeClass("hidden");
});
$("#cover-img").mouseout(function() {
$("#nav-upload-icon").addClass("hidden");
});
Give position absolute to place it over the image
Fiddle
Go for #epascarello solution. It is the best.

The hover accepts two functions:
$("#cover-img").hover(function() {
$("#nav-upload-icon").removeClass("hidden");
}, function() {
$("#nav-upload-icon").addClass("hidden");
});
Fiddle
But obviously the CSS solution is better.

Your almost there. Add a second anonymous function to add the class for mouseleave
$("#cover-img").hover(function() {
$("#nav-upload-icon").removeClass("hidden");
}, function() {
$("#nav-upload-icon").addClass("hidden");
});
According to hover(), you can pass in handlerIn/handlerOut which are synonymous with mouseenter/mouseleave
DEMO

If you don't want to use javascript, wrap a div around the image.
<div class="image-wrap">
<img > <-- your super cool large image
<img class="upload"> <- your super cool icon and stuff absolutely positioned with 0 transparency
</div>
Then in the css you go something like this
div.image-wrap:hover img.upload {
opacity:0.9
}
Don't bother with javascript, it's 2015

This can be achieved without any JS. Using the adjacent selector you can show the icon when #cover-img is hovered on.
#cover-img:hover + img {
opacity: 1;
}
Updated Fiddle

Overlay the div on the div of contact form

Following is my fiddle in which i made a div with class overlay and i am trying to do that when user clicks on submit button then that overlay class div appears on the div of contact form and on clicking close button that div hides and it shows the reset form again. Kindly let me know how can I make such kind of overlay on the contact form on submit button
http://jsfiddle.net/VqDKS/
.overlay
{
background-color: yellow;
height:200px;
width: 300px;
}

See this, edited with jQuery and CSS. Set the overlay to position: absolute and hide it before the form is submitted. Then remove it when the 'Close'-button is clicked.
http://jsfiddle.net/VqDKS/3/

CSS:
.overlay
{
background-color: yellow;
height:200px;
width: 300px;
position: absolute;
top: 0px;
z-index: 99;
display: none;
}
Jquery code:
function js()
{
alert('clicked submit: get typed name');
var name = $("#FN3").val();
$("#name").html( name );
$(".overlay").fadeIn()
return false;
}
$(document).ready(function(){
$(".close").click(function(){
$(".overlay").fadeOut();
$('#contact_form3 input[type="text"]').val('');
});
});
Make following change in HTML:
<input type="button" value="close" class="close">

You need to hide your overlay at the beginning just show the form. When clicked submit, show overlay and hide the form. Then when close is clicked hide the overlay and show the form.
It can be as :
function js()
{ alert('clicked submit: get typed name');
var name = $("#FN3").val();
$("#name").html( name );
$("#form-div").hide();
$(".overlay").show();
return false;
}
function closeOverlay(){
$("div.overlay").hide();
$("div#form-div").show();
}
please have a look here :
http://jsfiddle.net/injulkarnilesh/VqDKS/7/

Basically you need to set the contact form wrapper position property to relative and then just set position of your overlay to absolute, something like this:
.contact_wrapper { position: relative; }
.overlay { position: absolute; top: 0; left: 0; }
This way you will be sure that your overlay will be absolute positioned on the top of your contact form.
When page is loaded, we don't need the overlay, so you can add the following property:
.overlay { display: none; }
In your code, when you submit the form you are using onclick event to execute your handler.
Here you need to make overlay visible again, you can use .show() of jQuery:
$('.overlay').show();
And now you need to add event handler to deal with close button, you can simply add unique idintifier (e.g. class) to the element, then with jQuery you can trigger click event for this element and here you can hide your overlay.
$('.closeBtn').click( function() {
$('.overlay').hide();
});
By the way, you can read about .submit() and .ajax() methods in jQuery.
Here is a working jsFiddle.

I updated your fiddle a bit: http://jsfiddle.net/nweevers/VqDKS/8/
This is a way to do this. But then your form isn't still submitted.
The best way is to show the overlay after the post. And then you can hide the overlay with the button.
$overlay.on('click', 'input[type=button]', function() {
$overlay.hide();
});

jQuery animate movement left and right

Using jquery's .css() i am changing the left attributes value to move a div left or right. Im looking for a way to animate this change as it occurs. Nothing ive tried is working, ive tried jQueryUI's .show(slide) function, but this moves the whole div, rather than just the 120px movement i need.
This is my current function which is working without an animation:
$('#plrt').live("click",function(){
var lm=$('.plwid').css("left");
lm = (parseInt(lm) + 120);
$('.plwid').css("left", lm);
});
this is the slide function, it does not work properly as the whole div goes from display:hide to display:show, rather than just moving the pixel change

try animate()
$('#plrt').on("click",function(){
$('.plwid').animate({ left: '+=120' }, 400 );
});

I have whipped up a quick example of what I think you are trying to achieve.
You should check out jQuery Animate.
//note live is deprecated
$('#plrt').on("click", function() {
//perform custom animation to add 120px to current left CSS position
$('.plwid').animate({
left: '+=120'
});
});
#plrt{
position:relative;
background:red;
width:100px;
height:100px;
cursor:pointer;
}
.plwid{
position:absolute;
background:blue;
width:100px;
height:100px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div id="plrt"></div>
<div class="plwid"></div>

try this http://api.jquery.com/animate/
$('#plrt').on('click', function() {
$('.plwid').animate({ left: '+=120', 5000 });
});