Fading Background - html

I want to have a panel open up whenever I click a link. I want the entire page to fade out and only have that panel visible.
How can I do that?
Thanks
Kousha

You could set a div with position fixed to the top left corner, height and width 100%, z-indexed higher than everything and CSS transition or jQuery animate the div into view. Use an opaque background so the parent page is not visible.

you have to prepare 2 things:
a div to cover the whole page
the panel you want to fade in
upon clicking the link, "fade in" the div so that it will cover the entire page and fade in the panel as well. You may need to specify the z-index of that div and panel to make sure they are on top.

As far I get it, you can have this effect by two way
1. For first way you need to separate your content and the panel like-
<div id="container">
<div id="content">
<!-- your content goes here -->
link
</div>
<div id="panel">
<!-- your panel code goes here-->
</div>
</div>
and position your panel absolutely respected to the container and use some jQuery to fade the content div out like-
$(document).ready(function(){
$('#link').on('click',function(){
$('#panel').show();
$('#content').hide();
});
});
If you need to keep your panel code beside the links then you can reduce the opacity of the content like-
<div id="container">
<div id="content">
<!-- your content goes here -->
Link
</div>
<div id="panel">
<!-- your panel code goes here-->
</div>
</div>
and the jQuery-
$(document).ready(function(){
$('#link').on('click',function(){
$('#panel').show();
$('#content').css('opacity','0');
});
});
This is a rough code and I've omitted many thing. I hope you'll figure out when you have the idea. Thanks

You can have a div with the contents of the page, and another with the contents of the panel. You will probably want to position your panel at an absolute or fixed position on the page. After that, you can just attach functions in JavaScript/jQuery to whatever events you want to trigger the fade to change the opacity or display of your page contents and panel. Below is an example.
HTML:
<div id="A">
<div id="B">
<p id="1">Click Me!</p>
</div>
</div>
<div id="C"><p id="2">Click Me!</p></div>
CSS:
p {
cursor: pointer;
}
#A {
height: 400px;
width: 300px;
background: grey;
}
#B {
height: 200px;
width: 300px;
background: red;
}
#C {
height: 100px;
width: 200px;
background: blue;
position: absolute;
top: 50px;
left: 50px;
display: none;
}
jQuery:
$('#1').click(function(){
$('#A').fadeOut('slow');
$('#C').fadeIn('slow');
});
$('#2').click(function() {
$('#C').fadeOut('slow');
$('#A').fadeIn('slow');
});
Demo
In this example, the "A" div would be your contents and the "C" div would be your panel. The p texts that say "Click Me!" are your links.

Related

How to create a logo image that spans 3 vertical div elements

How to create a layout that allows having a logo image(yellow) that spans 3 vertical div elements and does not change its location(center) when the page gets minimized. I'm using Bootstrap 4. Initially, I have found 2 solutions but they do not work when the page is resized by minimizing its size.
Using CSS style position: absolute and topY/offset - does not work because logo image(yellow) change its position..gray div goes under the pink div as a result the logo image overlaps the gray's div text content
Splitting the logo image horizontally into 3 images, the problem is that between the second(middle) image and the bottom image appears a lot of space when minimizing the page
NOTE: when the page gets minimized, the gray div goes under the pink div, and the green div goes under the gray div, as a result, the second row becomes twice taller. No problem that it is twice taller, but I want that the logo(yellow) to stay vertically centered in its original pink div
Place the 3 divs inside a wrapper
<style>
.wrapper{
background-image:url("image.jpg");
background-size:cover;
}
</style>
<div class="wrapper">
// three divs go here
</div>
This is possible through margin: negativevalue 0 -- but without actual code I can't give exact values. If standard Bootstrap 4, adding the class my-n5 (taking advantage of Bootstrap 4's spacing utility) to the logo element will make its box-model overlap others.
You need to use position: absolute, top: 50% and transform: translateY(-50%) to the logo to make it work
First, the position: absolute and top: 50% will make the logo position fixed in it's relative parent and make the top of the logo itself positioned in the center it's parent
Then the transform: translateY(-50%) will move the logo from the current position negatively for half of the logo height
Here's the working example
.c1 {
background: pink;
overflow: visible;
}
.c2 {
background: gray;
}
.c3 {
background: lightblue;
}
.logo {
width: 48px;
height: 48px;
position: absolute;
left: 0;
top: 50%;
transform: translateY(-50%);
z-index: 100;
}
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<div class='container-fluid'>
<div class='row'>
<div class='col-md-12'>
1 DIV
</div>
</div>
<div class='row'>
<div class='col-md-4 c1'>
Left Content Logo
<img class='logo' src='https://upload.wikimedia.org/wikipedia/commons/d/d1/ShareX_Logo.png' />
</div>
<div class='col-md-3 c2'>
Mid Content
</div>
<div class='col-md-5 c3'>
Right Content
</div>
</div>
<div class='row'>
<div class='col-md-3' style='background: blue;'>
LEFT
</div>
<div class='col-md-6'>
MID
</div>
<div class='col-md-3'>
RIGHT
</div>
</div>
</div>
Note: You can try to resize either the div or the logo to see that it will still centered in it's relative parent container

div inside other div, moving down in relation to scroll (React)

I want to have an object falling from the sky while scrolling down the page. The idea is: You have the object div not moving. It should be in the center of the page (50 px from the top of its parent) and when you scroll down it should scroll down too.
Whats the catch? The object is in another div. I only want the object to be visible inside this div. So not on the entire website.
What have I tried?
1: Fixed positioning, but then it shows up on the entire page, z-index does not work with fixed.
2: Relative positioning on the parent and absolute on the child but then the object div does not go down the page when I scroll.
Visual representation::
On scroll down:
React Component:
<div className="container">
<div className="container--object">
<img src={object}/>
</div>
</div>
CSS
.container {
min-height: 100vh;
position: relative;
}
.container--object {
position: absolute;
top: 50px;
}
My parent component is the homepage. And the siblings of this react component are other div's. The functionality to make the div move down the page is what I am struggling with, how can I move the object div down? Is there a way to base it off the top of the browser?
Ok if i understood correctly, you want something like this? I used an image and some test text
.container {
min-height: 100vh;
height: 2500px;
position: relative;
}
.container_object {
position: fixed;
top: 50px;
}
<div class="container">
<div class="container_object">
<img src="https://images.pexels.com/photos/414612/pexels-photo-414612.jpeg?auto=compress&cs=tinysrgb&dpr=1&w=500" />
</div>
<div style="position: absolute; top:500px">
TEEEEEEEEEEEEST 111111111
</div>
<div style="position: absolute; top:800px">
TEEEEEEEEEEEEST 222222222
</div>
</div>
You should see this snippet in full page

DIV with position:absolute to dynamically extend to bottom of viewport?

Is it possible to specify the max-height of a DIV with position:absolute such that if it would reach past the viewport downwards, a scrollbar appears?
I.e., to user "overflow-y: scroll;" without having to specify the height statically? (Such that it works even if you resize the window.)
Here's what I mean: https://jsfiddle.net/x5efqtv2/2/
(And also see below)
P.S.: I could solve it with JavaScript, I'm interested in pure CSS solutions, if there's any.
Thanks!
div {
border: 1px solid red; /* just to see where the DIVs exactly are */
margin: 5px; /* ditto */
}
.float-over-content {
position: absolute;
max-height: 100px;
overflow-y: scroll; /* works with static max-height only? */
z-index: 10;
background-color: white;
}
<body>
<div id="upper">This one is above the position:absolute one</div>
<div style="position: relative">
<!-- this is needed for position:absolute below to put the div under "upper" -- or so I think -->
<div class="float-over-content">
<!-- I WANT TO DEFINE THE MAX-HEIGHT OF THIS DIV SUCH THAT IF IT REACHES THE BOTTOM OF THE VIEWPORT, A SCROLL BAR SHOULD APPEAR: (AS OPPOSED TO NOW, WHEN ITS HEIGHT REACHES 100px) -->
Make this reach exactly to the bottom<br/>
<!-- X times... -->
Make this reach exactly to the bottom<br/>
</div>
</div>
<div id="lower">
This one is "behind" the position:absolute one (it partially covers this one)
</div>
</body>
What Temani said in the comment. Use the calc function and the view height (vh) of the viewport. Check out the code snippet below. I added a button that will add more lines of text to the element and you can see it expand to fit the viewport with the overflow becoming scroll content.
document.getElementById("add-a-line").addEventListener("click", function(){
document.getElementById("float-over-content").insertAdjacentHTML('afterbegin','Make this reach exactly to the bottom<br/>' );
});
div {
border: 1px solid red; /* just to see where the DIVs exactly are */
margin: 5px; /* ditto */
}
#float-over-content {
position: absolute;
max-height: calc(100vh - 47.4px);
overflow-y: scroll; /* works with static max-height only? */
z-index: 10;
background-color: white;
}
#add-a-line{
position:fixed;
right: 0;
width: 200px;
height: 20px;
background-color: #0f0;
}
<body>
<div id="upper">This one is above the position:absolute one</div>
<div style="position: relative">
<!-- this is needed for position:absolute below to put the div under "upper" -- or so I think -->
<div id="float-over-content">
<!-- I WANT TO DEFINE THE MAX-HEIGHT OF THIS DIV SUCH THAT IF IT REACHES THE BOTTOM OF THE VIEWPORT, A SCROLL BAR SHOULD APPEAR: (AS OPPOSED TO NOW, WHEN ITS HEIGHT REACHES 100px) -->
Make this reach exactly to the bottom<br/>
<!-- X times... -->
Make this reach exactly to the bottom<br/>
</div>
</div>
<div id="lower">
This one is "behind" the position:absolute one (it partially covers this one)
</div>
<div id="add-a-line">
Click to add a line
</div>
</body>

repeated css background with a top padding

How can I add a repeated css background with an padding/space on top.
Here is my HTML Structure.
<div class="flare">
<div class="clouds">
<div class="clouds_bottom">
<div class="header">
contents
</div>
<div class="content_body_wrapper">
contents
</div>
<div class="footer">
contents
</div>
</div>
</div>
</div>
and my css code that is not working.
.clouds_bottom {
background: url('../img/clouds_bottom_bg.png') repeat left 250px;
}
Cheating is allowed with CSS. Instead of placing you background 100% away from top cover it with another div with original background [color].
html:
<html>
<body>
<div id="cheated_background">
</div>
<div id="body">
content
</div>
</body>
<html>​
css:
body {
background: lightblue; /* your clouds :) */
}
#cheated_background {
position: absolute;
top: 0px;
background: white;
width: 100%;
height: 100px;
}
#body {
position: relative;
}
Check out live example.
Try using repeat-x instead of repeat? If it is repeated vertically, you will not be able to see the margin created by the background-position.
Edit to comment: If you need the repeat in both directions, what I could think of is a three-layer structure. You would need a container div with position:relative into which you could put three divs having position:absolute. The bottom one would have the repeated background picture, the middle one would be white and cover the top portion of the bottom one only, the top one would contain your actual content.

Help with making a Clickable Background Slideshow

I am creating a website that has a jquery image slideshow as the background, and on top of the slideshow is a navigation bar, a blank area in the middle of the page so that the image shows through, and at the bottom underneath the slideshow is some content and a footer. Similar to Need Supply's current website (http://needsupply.com/).
My main difficulty, is that I'd like to have the images in the slideshow clickable but since the slideshow is behind all of the divs (z-index: -1), it cannot catch any clicks since it's being covered by my main content divs (page, header, footer).
I tried replacing the slideshow with a simple linked image but it still cannot be clicked, so I know it is not anything to do with the slideshow code.
Here is the basic structure of my site:
<body>
<div id="slideshow">
....
</div>
<div id="page">
<div id="header">My Header</div>
<div id="content">Some Content</div>
<div id="footer">My Footer</div>
</div>
</body>
css:
#slideshow{
width:100%;
height: 620px;
position: absolute;
top:0;
left:0;
z-index:0;
}
#page{
width: 980px;
margin: 0 auto 2px auto;
}
Any help would be greatly appreciated. Let me know if you need any more information on my end.
You just need to remove the #page wrapper and position #content and #footer absolutely at the bottom. That way there would be no div covering the main area of the images (#slideshow) and so you would be able to click it. The #page, #content and #footer divs would remain unclickable.