I'm trying to create a 3D Carousel using CSS3 (transform).
But, there is a problem.
Look at the pictures below:
The first image is result of my current code (which likes looking carousel from inside, also with bugs :P ), but I want to get something like second image. (looking like a carousel from outside, and bug free!)
This is my code.
I can use negative values of degrees for this purpose; but if I do that, the height of left and right divs will be bigger than center div. Like this.
How to get something like the second image? Which CSS Transform codes should I use?
here is working Demo of what you want
EDIT:
In order to fix the height issue on applying the negative transform rotate, you need to give -ve translation along z-axis and also -ve and +ve translation along X-axis to left and right elements respectively.
EDIT:
well there are lot of tutorials explaining the use of css3 translation
I am pointing to one of those
http://www.w3schools.com/css3/css3_2dtransforms.asp
You simply need to reverse the perspective angles; for a1 you needed rotateY(-20) and for c1 you needed rotateY(20):
http://jsfiddle.net/thundercracker/upEC6/4/
EDIT:
Seeing your comment; the height of the div is going to be larger because the edge of the div is virtually closer to you. If you want the divs to appear to be the exact same height, you need to reduce their initial height a few pixels, or increase the height of the center div to 'zoom' it, like the edges of the rotated divs are 'zoomed in'. When the rotation angle is reversed you don't notice the height difference because it is small.
EDIT:
In addition the far edges of the div slightly smaller than the closer edges; if your divs were long enough one edge would be the height of the screen and then other would be a tiny point.
Related
I want to make a carousel-style widget that is built with 3 images and two buttons.
My problem is that this whole thing needs to be responsive and scale up (to some maximum) and down, while keeping the relations between the images.
The shape is as follows:
The pixel sizes of the images are all known upfront, and any relation that is needed can be known upfront (e.g. the amount needed to move the green and blue boxes since they are not vertically centered).
I am not very experienced with HTML/CSS, and I managed to get this shape with flexboxes and translations, but I could never manage to get it to scale correctly with the rest of the page.
I don't quite understand if this is even possible with CSS, since it requires some sort of absolute positioning / translations / etc. that ruin its box model.
The next thing I thought of trying is to use a canvas instead and draw the images myself, while letting the canvas width to stretch as it wills (up to a maximum) while I control the height in JS, since I know the aspect ratio of the widget.
I would really prefer a simpler HTML/CSS solution though.
I suppose I could do the same without a canvas - a container that is controlled by CSS for width, but I control its height, and the images/buttons could all be absolutely positioned in it, but that's kinda weird as well.
Your goal can be accomplished by using percentage-based width values (heights being auto or unset) for the images at different CSS breakpoints (e.g. Bootstrap's listed at https://getbootstrap.com/docs/5.0/layout/breakpoints/). Practically from an aesthetic standpoint, I suggest setting buttons to pixel values (again, differing at breakpoints). Either a container (like a div element) or the body element will be the parent element to which your images and buttons scale.
To accomplish overlapping of images (and horizontal alignment of buttons mentioned in the next paragraph), for all elements you'll need to set z-index, which indeed does require either absolute or fixed positioning. Given your elements will be either absolute or fixed in position, you could modify vertical positioning using the top property.
Give the three images auto left/right margins. Set the buttons to the same z-index as the green image so that they'll rest against the green image. Give the L button a left margin of auto and right margin of 0. Give the R button a left margin of 0 and right margin of auto.
No JS required with this solution, as you'd prefer.
I am building a module to display html divs(pages) which are designed to in a later stage be printed out as A4s. The area where these divs are displayed is however to small to display the full width of the divs and thus the pages and their content need to be scaled down to fit within the display-area at hand.
The children of the a4-pages are styled with both set widths/heights and percentages so it would be a nice approach to use the CSS3 Tranform scale to scale the pages down just enough so that they can be displayed but this becomes problematic since the scale is done after rendering and thus creates an white area around the pages.
I'm using jquery to rescale the pages when window is resized and will also implement this when page is loaded.
How do i scale several divs within a common wrapper and also readjust the parent so that the scaled div is showed without any padding around it?
Edit: I've put together a simple fiddle displaying the issue http://jsfiddle.net/96jkU/
#toBeScaled should display over the full width of #displayArea but still be scaled to 0.5
If I understand the question correctly, you want the scaled div to sit in the top left corner of the parent div.
In that case, the problem is that the transform origin is set to 50% 50% by default. This is good for rotations (you typically want to rotate something around its center) but not really for scaling; your div gets shrunk down to the center of where it would originally be.
Solution: all you need to do is add
transform-origin:0 0;
(with the proper prefixes) to the style for #toBeScaled.
See updated fiddle.
I have got three divs on a page, all floating side by side. With the css scale method, I'm scaling the middlemost div to 0.5. This works well.
The only problem is that scaling the div won't effect the position of the other divs. Seems like the scaled div still has an invisible container with the original scale. The desired result is that after scaling, the margins stay the same.
I added an example: http://jsfiddle.net/yxYdd/3/ (In real, the middlemost div is filled with lots of other elements)
Is there a neat way, without messing with margins etc., so that scaling will effect the positioning of other divs?
That's just how CSS 2D transforms work by design, unfortunately.
What you really want to do is avoid using CSS transforms for this example, and instead use another, simpler implementation.
I've done this for you here: http://jsfiddle.net/yxYdd/4/
The only change you really need is:
.scaleDiv{
width:75px;
}
Which does produce the effect you wanted. Isn't that funny? :)
jsfiddle link: http://jsfiddle.net/djDWF/84/
The problem is, the inner container (text-padding) margin/width for the text/images is affecting the center background image. The repeated image that touches the footer does not extend to full height, and cuts off so the center and footer images do not match up (it is kind of hard to tell, but if you add or remove text in my jfiddle example you can see the center image change where it meets the footer.).
This is for a school project, and though I did not need to actually do this type of image background, I got this far so might as well continue. I don't want to use javaScript if possible because that is not part of the course yet.
I tried removing the text wrapper and styling each p tag individually but the same effect occurs.
I also tried mathematical combinations using line-height and margins. If I set the line-height to equal the right and bottom margins, and the left margin to equal the height of the footer then the effect works, but because my footer image is so large this is not a workable solution.
Mathematically I tried to keep the same ratios with the footer height but this did not work either (or else I did this wrong. I tried dividing each by the same amount.)
Is there any way to do this using only CSS and and not having to resort to tables?
So in short the problem is: You can see a line showing up at the footer separation because the repeated centre background isn't fully showing it's last repeat as the container isn't big enough.
The solution: If it doesn't need to be variable and you know how much content you will be putting in you can just set a height: Live example - http://jsfiddle.net/djDWF/85.
div#background-center{
background:url(http://i.imgur.com/gsNFa.png) repeat-y;
float:left;
width:700px;
height: 1604px; /* add this */
}
Obviously, pick whatever height is right to fit your final text.
With your current images there is no way to do this automatically without using JavaScript.
I am facing a problem: I have a div tag and images of 100px width each on both sides of the div. Now I want to add a number of div tags stacked over each other in the middle of it and they have to be fluid (using % width) and relative to support multiple resolutions. How can I do it?
JSFiddle Code
The only way to do that with the center being position: relative is by knowing the height of the center divs and adjusting margin-bottom of the div immediately above. Look at http://jsfiddle.net/XMkDt/10/ (this is only a single line, not very useful), and http://jsfiddle.net/XMkDt/26/ (this is equal height divs, but could be adapted to accommodate different heights; note: on my FF win7 the border's align correctly but the text is tweaked by a pixel and I'm not sure why--but for your purposes, it would work).
Note: you would want to make sure z-index: 1 was set to the div that you are actually showing at the time (as you make your opacity change), to lift it above the other divs.
Something like this? You'll need a hell of a lot of empty spaces though to make them fill the width...
EDIT:
New fiddle with fluid width: http://jsfiddle.net/BXW8y/1/