Script/code to detect screen dimensions - resize

I have a div on my page containing images. As it is 800px high and situated 400px from the bottom of the page, my images are getting cut off from the top when viewed on smaller monitors. I am not using scrollbars on my website.
I have added some CSS to my div that zooms out/scales the content...
.hello {
width:100%;
height:800px;
position:fixed;
top:0;
bottom-margin:400px;
z-index:0;
-moz-transform: scale(.8);
-webkit-transform: scale(.8);
zoom : .8;
-moz-transform-origin:top center;
-webkit-transform-origin:top center;
}
But is there any script that I could implement that will only apply the zoom/scale if the user's monitor dimensions are 1200px high or smaller?
Thanks in advance for any help!

What you're looking for is the screen resolution. See here. Relevant bits:
height
Returns the height of the screen in pixels.
width
Returns the width of the screen.
However, this does not tell you how big the window is, in which case you'll need the windows dimensions. See here. Relevant bits:
window.innerHeight
Gets the height of the content area of the browser window including, if rendered, the horizontal scrollbar.
window.innerWidth
Gets the width of the content area of the browser window including, if rendered, the vertical scrollbar.
I would detect this and change classes and whatnot appropriately.

Related

How to add body background which sticks to container div?

I have a container in the center of window. And my logo goes out from container to the left. I split my logo in 2 pieces. Right piece i added in my container with no-repeat. And left piece i have to add in my body background and somehow stick it to containers div.
i have drawn my issue:
how to manage that issue ?
I would do it somehow different. You can always set background of #logoimage div to your logo with gradient, or simply put an image inside. One image is enough with full logo object.
style:
#container{
display:block;
width:400px;
height:800px;
margin:auto;
background:#abc;
position:relative;
}
#logoimage{
display:block;
width:170px;
height:80px;
margin:auto;
background:#aaa;
position:absolute;
left:-70px;
top:30px;
}
html:
<div id="container"><div id="logoimage"></div></div>
live example here
What's the most important of this is:
position:relative style of container element
position:absolute style of logo element
The idea generally is that in position absolute, you can set x,y relatively to element with position relative.

Dynamically setting max-height of Bootstrap modal body

I'm trying to dynamically set the max-height of Bootstraps modal-body elements for all modal dialog boxes. I've written the following, which seems to work when the dialog is opened. I'm depending on the enforceFocus method to exist and to be called once the dialog is rendered. I realize there may be moment before the CSS property is set where the dialog will not be rendered exactly right, but I'm okay with that. Is there anything wrong with this solution? I know I have yet to account for resizing the screen with a modal open, but that seems the easier problem to solve.
(function ($) {
$.fn.modal.Constructor.DEFAULTS.backdrop = 'static';
$.fn.modal.Constructor.DEFAULTS.keyword = false;
var oldEnforceFocus = $.fn.modal.Constructor.prototype.enforceFocus;
$.fn.modal.Constructor.prototype.enforceFocus = function () {
oldEnforceFocus.call(this);
var $element = this.$element;
var maxHeight =
$("body").height() // full page
- $element.find(".modal-header").outerHeight(true) // modal header
- $element.find(".modal-footer").outerHeight(true) // modal footer
- ($element.find(".modal-dialog").outerHeight(true) - $element.find(".modal-dialog").height()) // dialog margins
- 5; // fudge factor
$element.find(".modal-body").css("max-height", maxHeight);
}
})(jQuery);
Thanks!
edit: To give credit where credit is due, this is based on
Correct way to extend Bootstrap Modal - lock, unlock.
If you don't want to use javascript, you can use CSS media queries and get close-ish to the height you need by using min-height. For example, define a media query on min-height: 540px, and set the max-height of the modal to something like max-height: 500px. Then define a media query at say min-height: 680px and set the modal to max-height: 640px. It's not fluid, and it requires several media queries to inch up to the largest size you want to plan for, but it will get you there.
#Josh solution is good with CSS and media queries but writing so many media queries where small devices has different screen heights e.g Iphone and SamSung G and N series, required alot of media queries to even calculate close-ish modal height on different screen sizes.
so setting height of modal (modal-body) dynamically according to media screen size and on small devices where there will be 2 types of media screen landscape and portrait, following few lines of code will put you very close-ish to your goal
Rendering modal HTML according to screen size with-in sec and later if screen size changes adjust it's height according to screen size
$(document).ready(function () {
setInterval(Dimension, 100);
function Dimension() {
var doc = $(document).height(); // document height
var head = $(".modal-header").height(); // modal header height
var footer = $(".modal-footer").height(); // modal footer height
var modheight = doc - head - footer - 65; // 65 is extra margins and it will not effect the height of modal any way if not changed.
$('.modal-body').css('height', modheight);
}
});
Note
Few Changes required in Modal CSS
CSS
.modal-dialog {
margin: 0px auto !important;
}
.modal-body {
overflow-y: scroll; // In-case the content in modal-body overflow so it will have scrolling.
}
Fiddle
You can check the modal height adjust itself by increasing and decreasing the fiddle result window's height and width.

Hiding content outside of background and show when scrolling

Working URL:
http://webstage.co/scroll/stack.html
What I am trying to accomplish is to hide the content when it is outside of the background area (1280x800). I like the way the backgrounds are coming in when you scroll to a new section, but I want to hide the content until it gets into that 1280x800 viewport? Any suggestions on how I can accomplish this?
Bonus...It would be great if I could also hide the content under the top navigation once it scrolled up under it as well. A guy can dream. :)
Thanks!
For the first part you can add another div and target with css something like this:
.viewport {
width: 1280px;
height: 100%;
position: fixed;
top: 0;
left: 50%;
margin-left: -640px;
background: black;
clip: rect(800px, 1280px, auto, auto);
}
Basically, set the background to the same color as the page background and use clip to only display the portion of the div that sits below your desired viewport area hiding the content outside the viewport area.
If you add content to the footer later you may need to tweak some z-index settings to make sure it sits on top of the viewport div.

Safari with unexpected vertical tile for icons on footer, should display in line

I was trying to add twitter/facebook icon to the site footer, much like side.cr footer. I got everything working, except that safari having unexpected vertical tile for twitter and facebook. I tried to upload screenshot but I am new user, so can't do that right now.
So I was searching for the answer and found this q/a here, Is <img> element block level or inline level?
So I went to side.cr again to see its css does have user agent stylesheet.
I added this line of code to my css:
.footer ul li img.t, li img.f {
width: 40px;
vertical-align: middle;
display: inline-block;
}
and it fixed the problem.
But I have a few questions in head:
why does side.cr's css show as non-editable user agent, while I have to add that display-inline to my css?
How does "display: inline-block" fix the problem?
Notice that: When mouse over to the gray twitter, it triggers swap.js, changing the icon image to the colored one, but in safari, the highlighted icon is bigger than the gray one. I think i almost know the answer. Just need someone who knows all the kinks behind this.
Thanks!
Solution:
To fix this problem make sure you set the height and width on the image so that it doesn't change during loading.
<img src="http://www.side.cr/images/contact/twitter_off.svg"
class="twitter_bird img_swap" height="52px" width="52px" />
or
.twitter_bird {
height:50px;
width:50px
}
Explanation:
When you switch the images name, safari begins to load the image but it doesn't know the height or width until it's done downloading. If you set the height and width it will not grow from 0px to 52px.

header image left:0 - float with browser resize - but stop after aligned with page div element

I have a question that I don't particularly know how to phrase properly so apologies in advance for lack of proper terminology. What I'm attempting to do is have a header image aligned left - left:0px; - with position:absolute; so that when the page loads on different sized screens it'll always be stuck to the left side of the browser window. But at the same time I want the header image to stop when it's loaded on a larger sized screen when it's aligned left with the page (if this makes sense). The page is below:
http://tinyurl.com/d2zttye
I want the BREAKWATER image to float with the page as it resizes but stop when it meets the background image below it (the #page div). So when loading in windows that are greater than the size of the background image (1592px) it won't float farther left. As of now it doesn't float with the page size and gets cut off on smaller screens.
Hopefully this makes sense and let me know if I need to clarify anything. Any help would be GREATLY appreciated!
Thanks!!!
Figured it out! By using #media screen I was able to define how the header would position on the page when the browser window is smaller than 1592px and larger than 1593px. #bwheader is the div and when the window is smaller than 1592px it floats left with the browser with a 10px left padding. When the window is larger than 1593px it then remains fixed (but using the position:absolute and centering the div using negative margins and 50% left). Hope this helps anyone that needs it!
#media screen and (max-width: 1592px)
{
#bwheader{
position:absolute;
top:0px;
height:74px;
float:left;
padding-left:10px;
}
}
#media screen and (min-width: 1593px)
{
#bwheader{
position:absolute;
top:0px;
width:1592px;
margin-left:-796px;
left:50%;
height:74px;
}
}