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I want to maximize a div to whole windows width and height (or another parent div) without moving the element in the DOM. Is this even possible only with CSS?
<div id="parent1" class="fullwidth">
<div id="parent2" class="notfullwidth">
<div style="position:absolute">mycontent</div><!-- make this full width of parent1/overlay parent1 -->
</div>
</div>
Yes, it could be achieved by positioning the #parent1 relatively and expanding the absolutely positioned grand child by setting its top, right, bottom and left properties to 0.
#parent1 {
position: relative;
background-color: gold;
}
#parent2 {
width: 70%;
margin: 0 auto;
min-height: 100px;
border: 1px solid gray;
}
.grand-child {
position: absolute;
top: 0; right: 0; bottom: 0; left: 0;
background-color: rgba(255, 30, 0, .5);
}
<div id="parent1" class="fullwidth">
<div id="parent2" class="notfullwidth">
<div class="grand-child">mycontent</div><!-- make this full width of parent1/overlay parent1 -->
</div>
</div>
If the parent doesn't have a relative position, then the child can be expand to full width/height relative to window.
#mycontent {
background-color: green;
position: absolute;
width: 100%;
top: 0;
left: 0;
height: 100%;
}
if the parent1 has a relative position, the the child would expand to the parent max width & max height.
#parent1 {
position: relative;
width: 300px;
height: 300px;
}
#mycontent {
background-color: green;
position: absolute;
width: 100%;
top: 0;
left: 0;
height: 100%;
}
Related
This question already has answers here:
How to make a div 100% height of the browser window
(40 answers)
Closed 5 years ago.
I want to make a div with a background-color of red to cover my entire page, but I do not want to use CSS position: absolute. Here is my example with CSS position:
<div style="width: 100%; height: 100%; position: absolute; top: 0; left: 0;"></div>
CSS position works for the most part, but then I am unable to create more than one of these divs (they overlap or cancel each other out because of top: 0 and left: 0). When you scroll down, I want you to see additional divs.
It would really help if there was a pure CSS solution, but JavaScript and HTML are open to me as well. JUST NO JQUERY.
What about using viewport height and viewport width?
I've created an example in this JSFiddle.
body, html {
margin: 0;
padding: 0;
}
div {
width: 100vw;
height: 100vh;
}
.one {
background-color: blue;
}
.two {
background-color: green;
}
.three {
background-color: yellow;
}
<div class="one"></div>
<div class="two"></div>
<div class="three"></div>
If you want to make div to occupy entire space use vw and vh
because making div alone height:100% and width:100% would not do it
without using viewport units
check this snippet
div{
width: 100%;
height:100%;
background:red;
}
html,body{
height:100%;
width:100%;
}
<div ></div>
but making html and body to have height and width is a bad idea
so to skip it use view port units
check this with viewport unist
div {
width: 100vw;
height: 100vh;
background: red;
}
<div></div>
Hope it helps
Older browsers such as IE7 and 8 could be supported without using visual height and width units by using a single absolutely positioned container with inner divs inheriting height and width property values.
CSS
body {
margin: 0px; /* optional */
}
#box {
position:absolute;
height: 100%;
min-width: 100%;
}
.page {
padding: 5px; /* optional */
height: inherit;
}
HTML
<body>
<div id="box">
<div class="page" style="background-color: red">
<div style="width:25em; background-color: gray">25em</div>
</div>
<div class="page" style="background-color: green">2</div>
<div class="page" style="background-color: white">3</div>
</div>
</body>
Update: the width property of the container has been replaced by a min-width property, introduced in IE7, to fix an ugly horizontal scrolling issue. Supplying width for inner div elements was removed as being unnecessary.
Simply change the top: value for each one. The first one would be 0, the second 100%, the third 200%, and so on. Here's a working example:
<div style="width: 100%; height: 100%; position: absolute; top: 0; left: 0;background:red;"></div>
<div style="width: 100%; height: 100%; position: absolute; top: 100%; left: 0; background:blue;"></div>
<div style="width: 100%; height: 100%; position: absolute; top: 200%; left: 0; background:green;"></div>
Here is the HTML code
.Box {
position: absolute;
bottom: 60px;
right: 0px;
left: 65px;
display: block;
background-color: #fedd2d;
max-width: 60%;
padding: 15px;
opacity: 0.8;
}
<div class="Box">
<div class="Boxtitle">Hello</div>
<div class="Boxsubtitle">Subtitle</div>
</div>
When I view this box on larger resolution (2560*1440) it expands both right side and left side. I tried using the width attribute which fixes the box from right side but the fix width hinders the responsiveness and the box width doesn't change with the length of the text within.
How can I make this Box div stay in same position in any screen size using either CSS or Javascript, also making it responsive as per the length of the content in it?
Just need to remove the right and max-width and then the width will adjust based on the content.
.Box {
position: absolute;
bottom: 60px;
left: 65px;
display: block;
background-color: #fedd2d;
padding: 15px;
opacity: 0.8;
}
right:0; seems to be in the way. it will pull container all the way to right side, but max-width is set too, so it stops at 60% of width as set. You rules are not coherent together.
since absolute, display is not really needed.
unless i missunderstand and max-width is in the way , ... or else ?
.Box {
position: absolute;
bottom: 60px;
left: 65px;
background-color: #fedd2d;
max-width: 60%;
padding: 15px;
opacity: 0.8;
}
<div class="Box">
<div class="Boxtitle">Hello</div>
<div class="Boxsubtitle">Subtitle</div>
</div>
`
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I have created 3 balls and I want to run a loop that animates them by doing the following:
randomly positions them
give them a starting point
give them a duration
Here is the fiddle link:
http://jsfiddle.net/X3SVp/1/
Javascript
function flipper(){
$('#ball_1').animate({
"left": '-90',
}, function(){
$('#ball_1').animate({
"left": '200',
}, flipper());
});
}
flipper();
HTML
<div id="ball_1">
</div>
<div id="ball_2">
</div>
<div id="ball_3">
</div>
CSS
#ball_1{
width: 100px;
height: 100px;
border-radius: 50%;
background-color: #354390;
left: 200px;
position: absolute;
}
#ball_2{
width: 100px;
height: 100px;
border-radius: 50%;
background-color: #354390;
}
#ball_3{
width: 100px;
height: 100px;
border-radius: 50%;
background-color: #354390;
}
What about something like this:
JavaScript
function flipper() {
$('.ball').each(function () {
var rndm = Math.floor(Math.random() * 201);
$(this).animate({
"left": '-' + rndm
}, function () {
$('.ball').animate({
"left": rndm
}, flipper());
});
});
}
flipper();
HTML
<div id="ball_1" class="ball"></div>
<div id="ball_2" class="ball"></div>
<div id="ball_3" class="ball"></div>
CSS
#ball_1 {
width: 100px;
height: 100px;
border-radius: 50%;
background-color: #354390;
left: 200px;
position: relative;
}
#ball_2 {
width: 100px;
height: 100px;
border-radius: 50%;
background-color: #354390;
position: relative;
}
#ball_3 {
width: 100px;
height: 100px;
border-radius: 50%;
background-color: #354390;
position: relative;
}
Fiddle here
As a point of guidance and without doing all the work for you.
Make a function which you call before flipper that sets each of the balls in a random x-y start position on the page. I recommend giving each ball the same class of ball so you can do something like this
`$.('.ball').each(function(index, ball){
//do something with ball
});`
For that you will need
http://api.jquery.com/each/
http://api.jquery.com/css/
and javascript math.random() http://www.w3schools.com/jsref/jsref_random.asp (perhaps not letting random be more than the dimensions of the visible page which you can get with $(document).height() and $(document).width())
Also not forgetting that they will perhaps need absolute CSS positioning depending on the use-case.
Then look at another function which you can loop in this case flipper which will loop through each() of the balls and animate a random direction for a random distance and perhaps back again depending on what you want.
Is it possible to use overflow: scroll on a div that has height set to auto?
I have a div with an unordered list inside of it. The amount of items in the list is variable so there is no way I can use a fixed height. The div that contains the unordered list is where the scrollbars need to be, here is my code:
#page {
height: auto; /* default */
overflow-y: scroll;
overflow-x: hidden;
}
As stated, the unordered list is contained within the #page div. The height of the page is assigned by the unordered list's value. Is there a way to make overflow: scroll work on a div with variable height like this or must I use JavaScript to do this?
Thanks
One way of approaching this design...
Suppose that you have the following HTML:
<div class="main">
<div class="inner">
<ul>
<li>Some list items...</li>
...
</ul>
</div>
</div>
The .main block is fitted to the page, for example, by absolute positioning:
.main {
border: 2px dashed blue;
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
The .inner block holds the navigation list that can cause scrolling:
.inner {
border: 2px dotted red;
position: absolute;
top: 10px;
bottom: 10px;
left: 10px;
right: 10px;
overflow-y: scroll;
}
In this example, I constrain the height of the .inner block to fit within .main,
and set overflow-y: scroll, which creates a scroll bar contained within the edges
of the container block.
You may have to adapt this to your mobile platform, but the concept should still apply.
Demo fiddle: http://jsfiddle.net/audetwebdesign/ac4xT/
Simply put, if it has variable height (auto), it will never have overflow in the y axis (vertically), because the div will always grow to fit its contents.
overflow: scroll will force it to present a scrollbar, but it will always be disabled, because the contents will never extend beyond the displayed pane.
If you want vertical scrolling, you have to define a height, either in px, %, or em.
If you do height: 100%, the div will fill the height of the page, and scroll content that extends beyond the window's viewport height.
If you have a header area, try something like this:
body {
margin: 0;
}
#header {
position: absolute;
width: 100%;
height: 40%;
background-color: #ccc;
}
#body {
position: absolute;
top: 40%;
width: 100%;
height: 60%;
overflow-y: auto;
background-color: #eee;
}
<body>
<div id="header">
<p>Header</p>
</div>
<div id="body">
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
</div>
</body>
For a fixed-height header (per the comments), use absolute positioning with a top and botom value to position the scrollable div below it:
body {
margin: 0;
}
#header {
position: absolute;
width: 100%;
height: 60px;
background-color: #ccc;
}
#body {
position: absolute;
top: 60px;
bottom: 0px;
width: 100%;
overflow-y: auto;
background-color: #eee;
}
<body>
<div id="header">
<p>Header</p>
</div>
<div id="body">
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
<p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p><p>Body</p>
</div>
</body>
Why not use max-height on the div?
max-height sets the maximum height to which an element can expand. I suppose what you want is the div to never go out of the screen. So you can set a max-height and then overflow: auto;
I would like to do something with my document which is quite unique (haven't seen it before) and thus maybe not even possible.
What I would like is to have a div which will overlay everything in the document, maybe give it background black so that nothing is visible. Second I would like to have a small squire window in the overlay which doesn't share the black background, in fact it is somewhat transparent and therefore it would be possible to 'peek' trough that window to see document content. But only the content where this window is. It would be kinda like those "zoom" plugins in which only a small portion is being zoomed, but in this case it would show specific content. Any idea how to create such a thing?
An example of what you can do is the following (it may not be the best but it works)
HTML
<div id='peakview'></div> <!-- This div is your view window -->
<div id='out'>
<div class='overlay'></div>
<div class='overlay'></div>
<div class='overlay'></div>
<div class='overlay'></div>
</div>
The <div> inside of #out will re-size accordingly to the position of #peakview creating the illusion of a full overlay. This can be done with simple css and some calculus.
Mainly what you need is the position of the element on screen.
var h = $(this).offset().top;
var l = $(this).offset().left;
var r = ($(window).width() - ($(this).offset().left + $(this).outerWidth()));
//right offset
var b = ($(window).height() - ($(this).offset().top + $(this).outerWidth()));
//bottom offset
In my example I used .draggable() from jQuery UI to move the div around. And while dragging the 4 divs shown above are adjusting their height and width to fill up the space between #peakview and document border.
An example for the first div
$('.overlay:eq(0)').css({
top: 0,
left: 0,
width: '100%',
height: h //the height is always changing depending on the #peakview .offset().top
});
In this fiddle you will see how the filling divs behave
Another ruff start:
http://jsfiddle.net/XDrSA/
This require some extra work, but it may suit your needs.
HTML:
<div id="yourContent" style="width: 300px; margin:100px auto;">
<input type="button" id="zoom" value="Click to zoom"/>
</div>
<div id="zoomer">
<div id="window">This is your "window"</div>
<div id="overlay_top"></div>
<div id="overlay_left"></div>
<div id="overlay_right"></div>
<div id="overlay_bottom"></div>
</div>
CSS:
body {
margin:0;
padding:0;
}
#zoomer {
height: 100%;
width: 100%;
position: absolute;
top: 0;
display: none;
}
#overlay_top {
height: 20%;
width: 100%;
background-color: black;
position: absolute;
top: 0
}
#overlay_right {
height: 100%;
width: 20%;
background-color: black;
position: absolute;
right: 0;
}
#overlay_left {
height: 100%;
width: 20%;
background-color: black;
position: absolute;
left: 0;
}
#overlay_bottom {
height: 20%;
width: 100%;
background-color: black;
position: absolute;
bottom: 0;
}
#window {
margin: 0 auto;
height: 100%;
width: 80%;
position: absolute;
background-color: rgba(0,0,0,.5);
}
And a piece of javascript:
$('#zoom').click(function() {
$('#zoomer').fadeIn();
});
You may need to stumble with the positioning, and the window will be a fixed size one. Not draggable though.