Longshot... I don't think this is possible but I've been shocked before!
I anchor tags, all of which have background images, all 300px wide but their heights all vary. Is there anyway to set these without actually having to type out the height? Sort of setting it to the bg url's dimensions?
Thanks!
I don't think people understand - My fault for rushing the question.
Here's code as an example:
#ex-1 {width: 300px; height: 410px; background: url('/image-1.jpg');}
#ex-2 {width: 300px; height: 420px; background: url('/image-2.jpg');}
#ex-3 {width: 300px; height: 430px; background: url('/image-3.jpg');}
#ex-4 {width: 300px; height: 440px; background: url('/image-3.jpg');}
I'd like to NOT set the height, and it set automatically using CSS only. I don't want to use image tags.
I wasn't sure if this was possible, I assume not.
Thanks
A simple way of doing this is to add an image like this and then make it hidden i used visibility:hidden http://jsfiddle.net/gztpsfkw/1/
i just saw that you don't want to use <img> tags but as for here the image is being hidden and it takes up the space.
<img src="http://placekitten.com/300/301" />aa
And apply the css
a{
display:block;
background-image:url('http://placekitten.com/300/301');
width:100px;
height:auto;
}
img{
visibility:hidden;
}
We can use a visibility: hidden way:
<img src="http://lorempixel.com/100/200/" />
CSS
a {background: url("http://lorempixel.com/100/200/") center center no-repeat; width: 100px;}
a img {visibility: hidden;}
Fiddle: http://jsfiddle.net/praveenscience/vhjxfgtw/
JavaScript Solution
Procedure
To set the height, dynamically, you need to use JavaScript. So, you can get the computed value by adding a <img /> tag and computing the value by setting the src. The pseudo code would have been like this:
Get the computed value of background-image.
Attach it to a new <img /> element in the DOM.
Get the height of the new <img /> element.
Set the height of the fake background <div>.
JavaScript
$(document).ready(function () {
bg = $(".bg").css("background-image");
$("body").append('<img id="faux" src="' + bg.substring(4, bg.length-1) + '" />');
height = $("#faux").outerHeight();
$("#faux").remove();
$(".bg").height(height);
});
Fiddle: http://jsfiddle.net/praveenscience/rcL3xj0x/
If you don't want to use inline CSS, you can use this:
$("style").append('.bg {height: ' + height + 'px}');
If you're looking for a way to make the background images fill all the space available then use background-size: cover
I think you're looking for something like this:
function setBackgroundImage(element, src) {
var img = new Image();
img.onload = function() {
element.style.height = img.height+'px';
element.style.backgroundImage = 'url('+img.src+')';
}
img.src = src;
}
Or, if you need to scale the images for the width:
function setImage(element, src) {
var img = new Image();
img.onload = function() {
var sizeRatio = element.offsetWidth / img.width;
element.style.height = (sizeRatio * img.height)+'px';
element.style.backgroundImage = 'url('+img.src+')';
element.style.backgroundSize = 'cover';
}
img.src = src;
}
Side Note: The <a> tag is not a block level element. In order for the <a> to have a height and a width you need to make it a block level element to show the background image.
You would use: display: block
Now for your question... In order to get the background image, with out having to manual type it in you can use a little jQUery to make your life a lot easier. I have modified your CSS and HTML a little bit to accomodate the jQuery.
CodePen Example
#links { overflow: hidden; }
#links a { display: block; float: left; width: 300px; height: 200px;
/* generic height set in case there is no background image */ }
#ex-1 { background: url('http://www.google.com/images/srpr/logo11w.png');}
#ex-2 { background: url('http://www.bing.com/s/a/hpc12.png');}
#ex-3 { background: url('http://www.google.com/images/srpr/logo11w.png');}
#ex-4 { background: url('http://www.bing.com/s/a/hpc12.png');}
<div id="links">
</div>
Here is the jquery. It will loop through all your images and set the height according to your background image
$(document).ready(function(){
$('#links a').each(function(){
var temp = $(this).css('background-image');
temp = temp.replace('url("', '').replace('")', '');
var newImg = new Image();
newImg.src = temp;
imageHeight = newImg.height;
imageWidth = newImg.width;
$(this).css('height', imageHeight);
});
});
This question already has answers here:
Fixed page header overlaps in-page anchors
(38 answers)
Closed 7 years ago.
I am trying to clean up the way my anchors work. I have a header that is fixed to the top of the page, so when you link to an anchor elsewhere in the page, the page jumps so the anchor is at the top of the page, leaving the content behind the fixed header (I hope that makes sense). I need a way to offset the anchor by the 25px from the height of the header. I would prefer HTML or CSS, but Javascript would be acceptable as well.
You could just use CSS without any javascript.
Give your anchor a class:
<a class="anchor" id="top"></a>
You can then position the anchor an offset higher or lower than where it actually appears on the page, by making it a block element and relatively positioning it. -250px will position the anchor up 250px
a.anchor {
display: block;
position: relative;
top: -250px;
visibility: hidden;
}
I found this solution:
<a name="myanchor">
<h1 style="padding-top: 40px; margin-top: -40px;">My anchor</h1>
</a>
This doesn't create any gap in the content and anchor links works really nice.
I was looking for a solution to this as well. In my case, it was pretty easy.
I have a list menu with all the links:
<ul>
<li>one</li>
<li>two</li>
<li>three</li>
<li>four</li>
</ul>
And below that the headings where it should go to.
<h3>one</h3>
<p>text here</p>
<h3>two</h3>
<p>text here</p>
<h3>three</h3>
<p>text here</p>
<h3>four</h3>
<p>text here</p>
Now because I have a fixed menu at the top of my page I can't just make it go to my tag because that would be behind the menu.
Instead, I put a span tag inside my tag with the proper id.
<h3><span id="one"></span>one</h3>
Now use 2 lines of CSS to position them properly.
h3{ position:relative; }
h3 span{ position:absolute; top:-200px;}
Change the top value to match the height of your fixed header (or more).
Now I assume this would work with other elements as well.
FWIW this worked for me:
[id]::before {
content: '';
display: block;
height: 75px;
margin-top: -75px;
visibility: hidden;
}
As this is a concern of presentation, a pure CSS solution would be ideal. However, this question was posed in 2012, and although relative positioning / negative margin solutions have been suggested, these approaches seem rather hacky, create potential flow issues, and cannot respond dynamically to changes in the DOM / viewport.
With that in mind I believe that using JavaScript is still (February 2017) the best approach. Below is a vanilla-JS solution which will respond both to anchor clicks and resolve the page hash on load (See JSFiddle). Modify the .getFixedOffset() method if dynamic calculations are required. If you're using jQuery, here's a modified solution with better event delegation and smooth scrolling.
(function(document, history, location) {
var HISTORY_SUPPORT = !!(history && history.pushState);
var anchorScrolls = {
ANCHOR_REGEX: /^#[^ ]+$/,
OFFSET_HEIGHT_PX: 50,
/**
* Establish events, and fix initial scroll position if a hash is provided.
*/
init: function() {
this.scrollToCurrent();
window.addEventListener('hashchange', this.scrollToCurrent.bind(this));
document.body.addEventListener('click', this.delegateAnchors.bind(this));
},
/**
* Return the offset amount to deduct from the normal scroll position.
* Modify as appropriate to allow for dynamic calculations
*/
getFixedOffset: function() {
return this.OFFSET_HEIGHT_PX;
},
/**
* If the provided href is an anchor which resolves to an element on the
* page, scroll to it.
* #param {String} href
* #return {Boolean} - Was the href an anchor.
*/
scrollIfAnchor: function(href, pushToHistory) {
var match, rect, anchorOffset;
if(!this.ANCHOR_REGEX.test(href)) {
return false;
}
match = document.getElementById(href.slice(1));
if(match) {
rect = match.getBoundingClientRect();
anchorOffset = window.pageYOffset + rect.top - this.getFixedOffset();
window.scrollTo(window.pageXOffset, anchorOffset);
// Add the state to history as-per normal anchor links
if(HISTORY_SUPPORT && pushToHistory) {
history.pushState({}, document.title, location.pathname + href);
}
}
return !!match;
},
/**
* Attempt to scroll to the current location's hash.
*/
scrollToCurrent: function() {
this.scrollIfAnchor(window.location.hash);
},
/**
* If the click event's target was an anchor, fix the scroll position.
*/
delegateAnchors: function(e) {
var elem = e.target;
if(
elem.nodeName === 'A' &&
this.scrollIfAnchor(elem.getAttribute('href'), true)
) {
e.preventDefault();
}
}
};
window.addEventListener(
'DOMContentLoaded', anchorScrolls.init.bind(anchorScrolls)
);
})(window.document, window.history, window.location);
Pure css solution inspired by Alexander Savin:
a[name] {
padding-top: 40px;
margin-top: -40px;
display: inline-block; /* required for webkit browsers */
}
Optionally you may want to add the following if the target is still off the screen:
vertical-align: top;
My solution combines the target and before selectors for our CMS. Other techniques don't account for text in the anchor. Adjust the height and the negative margin to the offset you need...
:target::before {
content: '';
display: block;
height: 180px;
margin-top: -180px;
}
This takes many elements from previous answers and combines into a tiny (194 bytes minified) anonymous jQuery function. Adjust fixedElementHeight for the height of your menu or blocking element.
(function($, window) {
var adjustAnchor = function() {
var $anchor = $(':target'),
fixedElementHeight = 100;
if ($anchor.length > 0) {
$('html, body')
.stop()
.animate({
scrollTop: $anchor.offset().top - fixedElementHeight
}, 200);
}
};
$(window).on('hashchange load', function() {
adjustAnchor();
});
})(jQuery, window);
If you don't like the animation, replace
$('html, body')
.stop()
.animate({
scrollTop: $anchor.offset().top - fixedElementHeight
}, 200);
with:
window.scrollTo(0, $anchor.offset().top - fixedElementHeight);
Uglified version:
!function(o,n){var t=function(){var n=o(":target"),t=100;n.length>0&&o("html, body").stop().animate({scrollTop:n.offset().top-t},200)};o(n).on("hashchange load",function(){t()})}(jQuery,window);
For modern browsers, just add the CSS3 :target selector to the page. This will apply to all the anchors automatically.
:target {
display: block;
position: relative;
top: -100px;
visibility: hidden;
}
You can do it without js and without altering html. It´s css-only.
a[id]::before {
content: '';
display: block;
height: 50px;
margin: -30px 0 0;
}
That will append a pseudo-element before every a-tag with an id. Adjust values to match the height of your header.
I had been facing a similar issue, unfortunately after implementing all the solutions above, I came to the following conclusion.
My inner elements had a fragile CSS structure and implementing a position relative / absolute play, was completely breaking the page design.
CSS is not my strong suit.
I wrote this simple scrolling js, that accounts for the offset caused due to the header and relocated the div about 125 pixels below. Please use it as you see fit.
The HTML
<div id="#anchor"></div> <!-- #anchor here is the anchor tag which is on your URL -->
The JavaScript
$(function() {
$('a[href*=#]:not([href=#])').click(function() {
if (location.pathname.replace(/^\//,'') == this.pathname.replace(/^\//,'')
&& location.hostname == this.hostname) {
var target = $(this.hash);
target = target.length ? target : $('[name=' + this.hash.slice(1) +']');
if (target.length) {
$('html,body').animate({
scrollTop: target.offset().top - 125 //offsets for fixed header
}, 1000);
return false;
}
}
});
//Executed on page load with URL containing an anchor tag.
if($(location.href.split("#")[1])) {
var target = $('#'+location.href.split("#")[1]);
if (target.length) {
$('html,body').animate({
scrollTop: target.offset().top - 125 //offset height of header here too.
}, 1000);
return false;
}
}
});
See a live implementation here.
For the same issue, I used an easy solution : put a padding-top of 40px on each anchor.
As #moeffju suggests, this can be achieved with CSS. The issue I ran into (which I'm surprised I haven't seen discussed) is the trick of overlapping previous elements with padding or a transparent border prevents hover and click actions at the bottom of those sections because the following one comes higher in the z-order.
The best fix I found was to place section content in a div that is at z-index: 1:
// Apply to elements that serve as anchors
.offset-anchor {
border-top: 75px solid transparent;
margin: -75px 0 0;
-webkit-background-clip: padding-box;
-moz-background-clip: padding;
background-clip: padding-box;
}
// Because offset-anchor causes sections to overlap the bottom of previous ones,
// we need to put content higher so links aren't blocked by the transparent border.
.container {
position: relative;
z-index: 1;
}
Solutions with changing position property are not always possible (it can destroy layout) therefore I suggest this:
HTML:
<a id="top">Anchor</a>
CSS:
#top {
margin-top: -250px;
padding-top: 250px;
}
Use this:
<a id="top"> </a>
to minimize overlapping, and set font-size to 1px. Empty anchor will not work in some browsers.
Borrowing some of the code from an answer given at this link (no author is specified), you can include a nice smooth-scroll effect to the anchor, while making it stop at -60px above the anchor, fitting nicely underneath the fixed bootstrap navigation bar (requires jQuery):
$(".dropdown-menu a[href^='#']").on('click', function(e) {
// prevent default anchor click behavior
e.preventDefault();
// animate
$('html, body').animate({
scrollTop: $(this.hash).offset().top - 60
}, 300, function(){
});
});
The above methods don't work very well if your anchor is a table element or within a table (row or cell).
I had to use javascript and bind to the window hashchange event to work around this (demo):
function moveUnderNav() {
var $el, h = window.location.hash;
if (h) {
$el = $(h);
if ($el.length && $el.closest('table').length) {
$('body').scrollTop( $el.closest('table, tr').position().top - 26 );
}
}
}
$(window)
.load(function () {
moveUnderNav();
})
.on('hashchange', function () {
moveUnderNav();
});
* Note: The hashchange event is not available in all browsers.
You can achieve this without an ID using the a[name]:not([href]) css selector. This simply looks for links with a name and no href e.g. <a name="anc1"></a>
An example rule might be:
a[name]:not([href]){
display: block;
position: relative;
top: -100px;
visibility: hidden;
}
Instead of having a fixed-position navbar which is underlapped by the rest of the content of the page (with the whole page body being scrollable), consider instead having a non-scrollable body with a static navbar and then having the page content in an absolutely-positioned scrollable div below.
That is, have HTML like this...
<div class="static-navbar">NAVBAR</div>
<div class="scrollable-content">
<p>Bla bla bla</p>
<p>Yadda yadda yadda</p>
<p>Mary had a little lamb</p>
<h2 id="stuff-i-want-to-link-to">Stuff</h2>
<p>More nonsense</p>
</div>
... and CSS like this:
.static-navbar {
height: 100px;
}
.scrollable-content {
position: absolute;
top: 100px;
bottom: 0;
overflow-y: scroll;
width: 100%;
}
There is one significant downside to this approach, however, which is that while an element from the page header is focused, the user will not be able to scroll the page using the keyboard (e.g. via the up and down arrows or the Page Up and Page Down keys).
Here's a JSFiddle demonstrating this in action.
This was inspired by the answer by Shouvik - same concept as his, only the size of the fixed header isn't hard coded. As long as your fixed header is in the first header node, this should "just work"
/*jslint browser: true, plusplus: true, regexp: true */
function anchorScroll(fragment) {
"use strict";
var amount, ttarget;
amount = $('header').height();
ttarget = $('#' + fragment);
$('html,body').animate({ scrollTop: ttarget.offset().top - amount }, 250);
return false;
}
function outsideToHash() {
"use strict";
var fragment;
if (window.location.hash) {
fragment = window.location.hash.substring(1);
anchorScroll(fragment);
}
}
function insideToHash(nnode) {
"use strict";
var fragment;
fragment = $(nnode).attr('href').substring(1);
anchorScroll(fragment);
}
$(document).ready(function () {
"use strict";
$("a[href^='#']").bind('click', function () {insideToHash(this); });
outsideToHash();
});
I'm facing this problem in a TYPO3 website, where all "Content Elements" are wrapped with something like:
<div id="c1234" class="contentElement">...</div>
and i changed the rendering so it renders like this:
<div id="c1234" class="anchor"></div>
<div class="contentElement">...</div>
And this CSS:
.anchor{
position: relative;
top: -50px;
}
The fixed topbar being 40px high, now the anchors work again and start 10px under the topbar.
Only drawback of this technique is you can no longer use :target.
Adding to Ziav's answer (with thanks to Alexander Savin), I need to be using the old-school <a name="...">...</a> as we're using <div id="...">...</div> for another purpose in our code. I had some display issues using display: inline-block -- the first line of every <p> element was turning out to be slightly right-indented (on both Webkit and Firefox browsers). I ended up trying other display values and display: table-caption works perfectly for me.
.anchor {
padding-top: 60px;
margin-top: -60px;
display: table-caption;
}
I added 40px-height .vspace element holding the anchor before each of my h1 elements.
<div class="vspace" id="gherkin"></div>
<div class="page-header">
<h1>Gherkin</h1>
</div>
In the CSS:
.vspace { height: 40px;}
It's working great and the space is not chocking.
how about hidden span tags with linkable IDs that provide the height of the navbar:
#head1 {
padding-top: 60px;
height: 0px;
visibility: hidden;
}
<span class="head1">somecontent</span>
<h5 id="headline1">This Headline is not obscured</h5>
heres the fiddle: http://jsfiddle.net/N6f2f/7
You can also add an anchor with follow attr:
(text-indent:-99999px;)
visibility: hidden;
position:absolute;
top:-80px;
and give the parent container a position relative.
Works perfect for me.
A further twist to the excellent answer from #Jan is to incorporate this into the #uberbar fixed header, which uses jQuery (or MooTools). (http://davidwalsh.name/persistent-header-opacity)
I've tweaked the code so the the top of the content is always below not under the fixed header and also added the anchors from #Jan again making sure that the anchors are always positioned below the fixed header.
The CSS:
#uberbar {
border-bottom:1px solid #0000cc;
position:fixed;
top:0;
left:0;
z-index:2000;
width:100%;
}
a.anchor {
display: block;
position: relative;
visibility: hidden;
}
The jQuery (including tweaks to both the #uberbar and the anchor approaches:
<script type="text/javascript">
$(document).ready(function() {
(function() {
//settings
var fadeSpeed = 200, fadeTo = 0.85, topDistance = 30;
var topbarME = function() { $('#uberbar').fadeTo(fadeSpeed,1); }, topbarML = function() { $('#uberbar').fadeTo(fadeSpeed,fadeTo); };
var inside = false;
//do
$(window).scroll(function() {
position = $(window).scrollTop();
if(position > topDistance && !inside) {
//add events
topbarML();
$('#uberbar').bind('mouseenter',topbarME);
$('#uberbar').bind('mouseleave',topbarML);
inside = true;
}
else if (position < topDistance){
topbarME();
$('#uberbar').unbind('mouseenter',topbarME);
$('#uberbar').unbind('mouseleave',topbarML);
inside = false;
}
});
$('#content').css({'margin-top': $('#uberbar').outerHeight(true)});
$('a.anchor').css({'top': - $('#uberbar').outerHeight(true)});
})();
});
</script>
And finally the HTML:
<div id="uberbar">
<!--CONTENT OF FIXED HEADER-->
</div>
....
<div id="content">
<!--MAIN CONTENT-->
....
<a class="anchor" id="anchor1"></a>
....
<a class="anchor" id="anchor2"></a>
....
</div>
Maybe this is useful to somebody who likes the #uberbar fading dixed header!
#AlexanderSavin's solution works great in WebKit browsers for me.
I additionally had to use :target pseudo-class which applies style to the selected anchor to adjust padding in FF, Opera & IE9:
a:target {
padding-top: 40px
}
Note that this style is not for Chrome / Safari so you'll probably have to use css-hacks, conditional comments etc.
Also I'd like to notice that Alexander's solution works due to the fact that targeted element is inline. If you don't want link you could simply change display property:
<div id="myanchor" style="display: inline">
<h1 style="padding-top: 40px; margin-top: -40px;">My anchor</h1>
</div>
Here's the solution that we use on our site. Adjust the headerHeight variable to whatever your header height is. Add the js-scroll class to the anchor that should scroll on click.
// SCROLL ON CLICK
// --------------------------------------------------------------------------
$('.js-scroll').click(function(){
var headerHeight = 60;
$('html, body').animate({
scrollTop: $( $.attr(this, 'href') ).offset().top - headerHeight
}, 500);
return false;
});
I ran into this same issue and ended up handling the click events manually, like:
$('#mynav a').click(() ->
$('html, body').animate({
scrollTop: $($(this).attr('href')).offset().top - 40
}, 200
return false
)
Scroll animation optional, of course.
Please have a look at this fiddle: http://fiddle.jshell.net/ikmac/q7gkx
Use this link to test in the browser: http://fiddle.jshell.net/ikmac/q7gkx/show/
HTML:
<div class="nav">
test1
test2
test3
</div>
<div id="test1" class="test">test1</div>
<div id="test2" class="test">test2</div>
<div id="test3" class="test">test3</div>
CSS:
.nav {
position: fixed;
top: 20px;
left: 0;
width: 100%;
height: 20px;
background: #000;
}
.nav a {
float: left;
font-size: 20px;
color: #fff;
}
#test1 {
margin-top: 1000px;
height: 1000px;
background: red;
}
#test2 {
height: 1000px;
background: blue;
}
#test3 {
height: 1000px;
background: green;
}
This is what happens in Safari on iOS 5.0 (4.3 doesn't support position fixed):
The first time I click on one of the anchors the page jumps to the correct anchor. After that I cannot click one of the other links anymore. When I scroll up or down a bit the links become clickable again.
All other desktop browsers behave fine.
Does anyone ever had this issue before or knows how to fix it?
I have that problem aswell. And I kind of half solved it by letting javascript do the scrolling of the nav when a nav anchor is clicked. And because normal touch-scrolling does not give an event until the finger lets go of the screen, I use position:fixed which makes the touch-scrolling nicer than javascript can, see apples dev-site.
It is not the ultimate solution, but in my opinion it is better than not working at all. This script also checks the width of the window to make sure that it only applies this to smaller screens, well, devices.
Here is my code, and if you find it useful, make it better or find a better solution, please share :)
/* NAV POSITION */
var specScroll = false; // If special scrolling is needed
/* Check what kind of position to use.*/
(function navPos() {
var width = checkWidth();
if (width <= 480 || navigator.userAgent.match(/iPad/i) != null) {
specScroll = true;
}else{
specScroll = false;
window.onscroll = NaN;
}
})();
$(window).resize( function(){ navPos(); } ); // After resizing, check what to use again.
/* When clicking one of the nav anchors */
$(function() {
$('a').bind('click',function(e){
var $anchor = $(this);
if(specScroll){
$('#nav').css('position', "absolute");
window.onscroll = anchorScroll;
}
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top
}, 700,'easeOutExpo', function(){
if(specScroll){setTimeout("window.onscroll = touchScroll;", 100);}
// the set timeout is needed for not overriding the clickability of the anchors after anchor-scrolling.
});
e.preventDefault();
});
});
/* While the user clicks and anchors in nav */
function anchorScroll() { $('#nav').css('top', window.pageYOffset); }
/* the first time the user scrolls by touch and lift the finger from screen */
function touchScroll() {
$('#nav').css('position', 'fixed');
$('#nav').css('top', 0);
window.onscroll = NaN;
}
/* CHECK WIDTH OF WINDOW */
function checkWidth() {
myWidth = 0;
if( typeof( window.innerWidth ) == 'number' ) {
myWidth = window.innerWidth; //Non-IE
} else if( document.documentElement && ( document.documentElement.clientWidth ) ) {
myWidth = document.documentElement.clientWidth; //IE 6+ in 'standards compliant mode'
} else if( document.body && ( document.body.clientWidth ) ) {
myWidth = document.body.clientWidth; //IE 4 compatible
}
return myWidth;
}
I use this solution on a project page, try it out: dare.niklasek.se
I ran into the same issue using a fixed position navigation that scrolls the user around the page using jQuery animation. What I found is that even though the fixed position element is visible at the new position, inspecting it with js reports that it is still back in the original position until the user moves the screen manually. Until then, even though the nav is there visually, it can't be touched in order to interact with it. More information and demo here: http://bit.ly/ios5fixedBug
I need to use a textarea to show some text. The problem is that if I place 4-5 rows of text a scrollbar will appear. How can I use CSS/HTML so that the textarea will be as large as it's content (no scrollbar).
the textarea doesn't need to change it's size dynamicaly, I use it only to show a text (I could also use a disabled textarea)
I want the textarea to stretch only verticaly.
If you want to know:
I use the textarea to show some text from a database, so when the textarea (with the text in it) is created, it should show the whole text at once with no scrollbars.
<!DOCTYPE html>
<html>
<head>
<title>autoresizing textarea</title>
<style type="text/css">
textarea {
border: 0 none white;
overflow-y: auto;
padding: 0;
outline: none;
background-color: #D0D0D0;
resize: none;
}
</style>
<script type="text/javascript">
var observe;
if (window.attachEvent) {
observe = function (element, event, handler) {
element.attachEvent('on'+event, handler);
};
}
else {
observe = function (element, event, handler) {
element.addEventListener(event, handler, false);
};
}
function init (maxH) {
var text = document.getElementById('text');
var maxHeight=maxH;
var oldHeight= text.scrollHeight;
var newHeight;
function resize () {
text.style.height = 'auto';
newHeight= text.scrollHeight;
if(newHeight>oldHeight && newHeight>maxHeight )
{
text.style.height=oldHeight+'px';
}
else{
text.style.height = newHeight+'px';
oldHeight= text.scrollHeight;
}
}
/* 0-timeout to get the already changed text */
function delayedResize () {
window.setTimeout(resize, 0);
}
observe(text, 'change', resize);
observe(text, 'cut', delayedResize);
observe(text, 'paste', delayedResize);
observe(text, 'drop', delayedResize);
observe(text, 'keydown', delayedResize);
text.focus();
text.select();
resize();
}
</script>
</head>
<body onload="init(200);">
<textarea rows="1" style="height:1em;" id="text"></textarea>
</body>
</html>
http://jsfiddle.net/TDAcr/
I´m afraid you´ll have to resort to javascript to set the height of your textarea. You can use the scrollHeight property to determine the total height.
Alternatively you could just use a div and style the div to look like a textarea. The div will grow automatically and as it´s a disabled textarea anyway, you don´t really need it to be a textarea.
Alright, I just found this and it works very nicely:
<html>
<head>
<script>
function textAreaAdjust(o) {
o.style.height = "1px";
o.style.height = (25+o.scrollHeight)+"px";
}
</script>
</head>
<body>
<textarea onkeyup="textAreaAdjust(this)" style="overflow:hidden"></textarea>
</body>
</html>
Now, I shouldn't assume that you know Javascript (but you might).
Just run
textAreaAdjust(document.getElementById("id of your text area"))
Something like that should work. I'm not the best with Javascript (not even close, I just started using it the other day)
That seems to do something similar to what you want. The first code example is for a textarea that dynamically changes based on what is in it (while typing). It will take a couple of changes to get it how you want.
You could use the CSS height: and width: attributes, e. g. something like
<textarea style="width:400px;height:300px">...</textarea>, just use the sizes you want to.
In addition, if you want to suppress the scrollbar, use overflow:hidden.
you can use div like textarea. It is possible like this:
<div contenteditable="true" style="width:250px; border:1px solid #777" ></div
Find the height of the font you will most likely be displaying it in. I'm not sure about CSS/HTML but you could use Javascript/PHP/ASP.net to use map to determine how big the text will be based on the number of characters. If you do it in a monospaced font, this will be even easier. Why use a text area when you could just use a label which will do the same thing all by itself?
If you don't mind using JavaScript you can use approach from one of following articles:
http://james.padolsey.com/javascript/jquery-plugin-autoresize/
http://scvinodkumar.wordpress.com/2009/05/28/auto-grow-textarea-doing-it-the-easy-way-in-javascript/
But from your questing I assume you want pure CSS solution.
Then you can just mimic appereance of textarea using simple div and following css (if you just want to display text):
div {
cursor: text;
background: lightGray;
border: 1px solid gray;
font-family: monospace;
padding: 2px 0px 0px 2px;
}
I assume name attribute is not used. You can use this alternative (HTML5):
http://jsfiddle.net/JeaffreyGilbert/T3eke/
Using the resize property works these days:
resize: none;
Is there any way to set a fixed/custom height for ligtbox2?
#lightbox img{ width: auto; height: 600px;}
This only resizes the img and not the outer container.
With that declaration you are styling the img within #lightbox
Try removing the img so that you are only styling #lightbox
does this work?
#lightbox { width: auto; height: 600px;}
If you go through the HTML it creates you can see that it's wrapped in a div with id="lightbox" and within that a div with id="outerImageContainer". The latter has a style attribute with the height of the image. Try targeting that. Either overwriting it in your CSS or changing the height after it's loaded.
<html>
<head>
<style type="text/css">
#lightbox { border : solid 2px #000000; position:absolute; }
#lightbox img { width:auto; height: 600px;}
</style>
</head>
<body>
<div id="lightbox">
<img src="Desert.jpg" alt="desert" />
</div>
</body>
</html>
None of these solutions worked, but thanks for your help guys. I had to get my hands dirty in the js... here's my hacked code:
lightbox.js
...
// once image is preloaded, resize image container
imgPreloader.onload = (function(){
var scale = 600 / imgPreloader.height; //modified
this.lightboxImage.src = this.imageArray[this.activeImage][0];
this.resizeImageContainer((imgPreloader.width * scale), //modified imgPreloader.height);
}).bind(this);
imgPreloader.src = this.imageArray[this.activeImage][0];
},
//
// resizeImageContainer()
//
resizeImageContainer: function(imgWidth, imgHeight) {
// get current width and height
var widthCurrent = this.outerImageContainer.getWidth();
var heightCurrent = this.outerImageContainer.getHeight();
// get new width and height
var widthNew = (imgWidth + LightboxOptions.borderSize * 2);
var heightNew = (600 + LightboxOptions.borderSize * 2); //modified
...