At this moment I am a bloody beginner in Jquery, but the following code based on api.jquery.com in that case this should work:
<a class="btindex">Startseite</a>
$('.btindex').click(function(){$(this).attr('href','index.html')});
$('.btindex').on('mouseover',function(){$(this).css('background-color':'#f2ab1e')});
$('.btindex').on('mouseout',function(){$(this).css('background-color':'#f0c911')});
I also write them in one, because it is more clear to me, but, nevertheless, here is the code:
$('.btindex').click(function(){$(this).attr('href','index.html')}).on('mouseover',function(){$(this).css('background-color':'#f2ab1e')}).on('mouseout',function(){$(this).css('background-color':'#f0c911')});
Also it isn't necessary in this case here is the css file:
.btindex{
cursor: pointer;
background-color:#f0c911;
border:1px solid #e65f44;
color:#c92200;
font-weight:bold;
font-style:italic;
font-size: 150%;
height:10%;
line-height:250%;
padding: auto;
position: fixed;
visibility: hidden;
width:22%;
text-decoration:none;
text-align:center;
}
I hope for quick answers and that the script explains itself, if not I will answer for sure. In any case I build a fiddle as support here :)
You have colons where you should have commas - it should be:
$('.btindex').on('mouseover',function(){$(this).css('background-color','#f2ab1e')});
$('.btindex').on('mouseout',function(){$(this).css('background-color','#f0c911')});
updated fiddle: http://jsfiddle.net/8Hbnk/2/
or you can pass properties in an object to css(), being careful to use camelcase for the property names (e.g. backgroundColor instead of background-color):
$('.btindex').on('mouseover',function(){$(this).css({backgroundColor:'#f2ab1e'})});
$('.btindex').on('mouseout',function(){$(this).css({backgroundColor:'#f0c911'})});
It's generally easier to refrain from setting inline style using css() and simply adding and removing classes to control style
If you know you have to revert back to original state this takes less time to set up with css rules than to add the JS needed to reset back to original css property values
CSS
.btindex.hovered{
background-color:#f2ab1e;
}
JS
$('.btindex').hover(function(){
$(this).toggleClass('hovered');
});
hover() with only one callback will cover both mouseenter and mouseleave events
Related
Here's the jsfiddle that I've been trying to debug:
http://jsfiddle.net/Neoheurist/x57fkzng/
HTML
<div id="birthday">Surprise Party</div>
<p></p>
<button onclick="blue()">Blue</button>
<button onclick="red()">Red</button>
<script>
function blue()
{
element=document.getElementById("birthday");
element.innerHTML="Happy";
element.style.background="blue";
element.style.width="150px";
element.style.opacity="1.0";
element.style.transition="width 2s,background 15s,opacity 2s";
}
function red()
{
element=document.getElementById("birthday");
element.innerHTML="Birthday";
element.style.background="red";
element.style.width="300px";
element.style.opacity="0.0";
element.style.transition="width 2s,background 4s,opacity 6s";
}
</script>
CSS
div
{
width:100px;
height:50px;
background:blue;
transition:width 2s,opacity 2s,background 15s;
}
div:hover
{
width:200px;
background:green;
opacity:0.25;
transition-timing-function:linear;
transition:width 2s,background 4s,opacity 6s;
}
Questions:
Why does clicking a button disable div:hover?
How can I prevent this from happening?
It's because HTML style attributes override element selectors in a css file. Any property set directly in an HTML style attribute will automatically be used over any property set in any css selector declaration.
Style attributes are much more specific than tag selectors (that's why they aren't recommended for use in fact).
According to the inspector in webkit this also includes the :hover state, so any inline style will stop a hover state from working.
You could use important, tempting as it might be, but that's not a good idea, because it takes the current problem with specificity that you're having and amplifies it even further, leading to a specificity nightmare. The only way to over-ride !important is with more !important, further down the document, or by using more specific selectors (like IDs) or longer chains of selectors and !important and so on, you can see how this can be horrible to maintain. Also any js that adds style to the HTML directly won't work either.
The best solution is to use javascript to add and remove css classes to trigger your changes. This will solve your problem as all your classes will have manageable specificity.
#birthday.blue {
background: blue;
width: 150px;
opacity: 1.0;
transition: width 2s,background 15s,opacity 2s;
}
#birthday.red {
background: red;
width: 300px;
opacity: 0.0;
transition: width 2s,background 4s,opacity 6s;
}
Then make sure the hover state is defined for all the combinations, so any class will :hover. This is not possible with inline styles.
#birthday:hover,
#birthday.blue:hover,
#birthday.red:hover
{
width: 200px;
background: green;
opacity: 0.2;
transition-timing-function: linear;
transition: width 2s,background 4s,opacity 6s;
}
I've put together a jsfiddle that demos this. I've used JQuery, for the sake of getting a demo together quickly and their addClass() method is great. Good effort to use pure js, it's a good habit to get into; this question will elaborate on how to add and remove classes in javascript
Plus; as an added bonus, you'll also have all your style in your style file and all your functionality in your javascript, which is better separation of concerns and makes the site styling DRYer and easier to re-use elsewhere in the project (you don't have styles stuck is js that you can't easily add elsewhere, which you copy instead, then try to change in one place and not the other ... we all do it, or our colleagues do!).
[Seen as I've brought up the subject of specificity you might also be interested to know that IDs are also pretty bad for that and unnecessary in style files]
You could make the div:hover attributes all !important like so:
div:hover{
width:200px !important;
}
However I've heard you'd want to avoid !important if possible, but this does what you want...
You can also use
document.addEventListener('DOMContentLoaded', function () {
var storedStyles;
var elem = document.getElementById("birthday");
elem.addEventListener('mouseenter', function () {
if (elem.hasAttribute('style')) {
storedStyles = elem.attributes.style.value;
elem.removeAttribute('style');
}
});
elem.addEventListener('mouseleave', function () {
if (storedStyles) {
elem.setAttribute('style', storedStyles);
} else {
storedStyles = null;
}
});
});
and clear all styles on mouse enter restoring hover styles precendence and setting back your inline styles on mouse leave
I am building a fixed header with using JQuery
Everything is working fine at the moment but instead of setting attributes to classes and I want to call them from css directly. I am not quite familiar with this method.
One of the example is below;
#header-main {
background-color: #ffffff;
min-height: 107px;
color: #8c8c8c;
}
#header-main .sabit{
position : fixed;
width: 100%;
z-index: 98;
padding-top: 35px;
border-bottom: 3px ridge #7BBD42;
}
How I am doing is; (Working)
var menu = $('#header-main');
if (...)
menu.css('position','fixed').css('width','100%').css('z-index','98').css('padding-top','35px').css('border-bottom','3px ridge #7BBD42');
else
menu.removeAttr('style'); //Back to normal
What I am doing to achieve what I want; (Not working)
var menu = $('#header-main');
if(...)
menu.addClass("sabit");
else
menu.removeClass("sabit"); //Back to normal
I also tried menu.addClass(".sabit"); or menu.addClass("#header-main .sabit"); but none of them worked.
What part am I doing wrong to add directly css class using JQuery?
It's not working because you have a space between #header-main and .sabit in your CSS, meaning that your CSS is trying to style the .sabit descendant of #header-main and not the #header-main element itself.
Change:
#header-main .sabit
To:
#header-main.sabit
Your logic is fine, the problem comes from your CSS.
The line #header-main .sabit{ should instead be #header-main.sabit{, as the sabit class is set on the #header-main element and not on one of its children elements.
Try changing
menu.addClass("sabit");
to
$(menu).addClass("sabit");
addClass comes from the Jquery library so you need to reference it from there.
I'm trying to change the background color of a div with a checkbox in it. I've made this for reference. I'm trying to replace the parent <div> with the 'highlight' <div>, so I thought the toggle <div> would work. When the checkbox is deselected, I would like the background color to go back to normal (or remove the 'highlight' <div>). Any help is appreciated.
You are setting an inline background-color style for the divs. This takes precedence over any properties you set via a CSS rule.
Add !important to the background-color value of the checked class in your css file, like so: http://jsfiddle.net/KtsGs/1/
There are a few issues present in the jsFiddle.
The first one is that, despite having written jQuery code, you haven't selected jQuery as the framework on the left hand side. That's a small issue specific to the code on jsFiddle, and easily fixed, though.
The second issue is that you have inline styles on the <div> elements, including a background-color. That inline style will be used in preference to any background-color specified using a CSS class (unless it's specified as being !important), so even when your code correctly adds the checked class to the element, the background colour isn't going to change.
The simplest solution is to simply change your CSS declaration:
.checked {
background-color: #ff0000 !important;
}
Here is an updated version of your jsFiddle with the working functionality (using the suggestion above).
However, I'd suggest you instead move the inline styles and JavaScript event handlers to their own CSS declarations, so you don't have to specify !important. That would require the following changes:
#holder > div {
clear: both;
padding: 0.5%;
margin-bottom: 1px;
border-bottom: 1px solid #eee;
float: left;
width: 96%;
style: height: 16px;
cursor: pointer;
background-color: white; // added this to the existing CSS
}
#holder > div:hover { // this is new
background-color: #fafafa;
}
Then move the CSS declaration for .checked below those, so that it takes precedence for the background-color property.
Here is another updated version of your jsFiddle, using the CSS declarations instead.
I'm trying to change the style from my AutoComplete result.
I tried:
// Only change the inputs
$('.ui-autocomplete-input').css('fontSize', '10px');
$('.ui-autocomplete-input').css('width','300px');
I searches and could not find out what the class used by the result is, so that I can change its font size and maybe its width.
Thanks.
Using:
jQuery-UI AutoComplete
EDIT: I need change the css from my result, that comes from my JSON, not from the input. The code you posted, only changes the input, not the result. This is why I asked for the class used by the result list (at least, I believe that is a list). I tried to use fb from ff and could not find it. Thanks again for your patience.
EDIT2: I'll use the autocomplete from jQuery UI as example.
Check this to see the jQuery-UI auto-complete page
After I type "Ja" in the textbox from the front-page sample, Java and JavaScript will appear as Results, in the little box below the textbox.
This little box is what I want to change the CSS of. My code in the sample above only changes my textbox CSS (which I don't need at all).
I don't know if I'm being clear now. I hope so, but if not, please let me know; I'll try harder if needed to show my problem.
The class for the UL that will contain the result items is what I need.
SOLUTION
As Zikes said in his comment on the accepted answer, here is the solution. You just need to put ul.ui-autocomplete.ui-menu{width:300px} in your CSS file.
This will make all the the results box css have width:300px (like the sample).
I forgot that the results object does not exist on page load, and therefor would not be found and targetted by a call to $('...').css(). You'll actually need to put ul.ui-autocomplete.ui-menu{width:300px} in your CSS file, so that it will take effect when the results are generated and inserted into the page.
– Zikes
Information on styling the Autocomplete widget can be found here: http://docs.jquery.com/UI/Autocomplete#theming
Fiddle
HTML
<input type="text" id="auto">
jQuery
$('#auto').autocomplete({'source':
['abc','abd','abe','abf','jkl','mno','pqr','stu','vwx','yz']
});
CSS
ul.ui-autocomplete.ui-menu{width:400px}
/*
targets the first result's <a> element,
remove the a at the end to target the li itself
*/
ul.ui-autocomplete.ui-menu li:first-child a{
color:blue;
}
I was able to adjust by adding this css to the <head> of the document (above the autocomplete javascript).
Some of the following may be more relevant than others. You could make it specific to the autocomplete input if changing these affects other elements you don't want affected.
<style type="text/css">
/* http://docs.jquery.com/UI/Autocomplete#theming*/
.ui-autocomplete { position: absolute; cursor: default; background:#CCC }
/* workarounds */
html .ui-autocomplete { width:1px; } /* without this, the menu expands to 100% in IE6 */
.ui-menu {
list-style:none;
padding: 2px;
margin: 0;
display:block;
float: left;
}
.ui-menu .ui-menu {
margin-top: -3px;
}
.ui-menu .ui-menu-item {
margin:0;
padding: 0;
zoom: 1;
float: left;
clear: left;
width: 100%;
}
.ui-menu .ui-menu-item a {
text-decoration:none;
display:block;
padding:.2em .4em;
line-height:1.5;
zoom:1;
}
.ui-menu .ui-menu-item a.ui-state-hover,
.ui-menu .ui-menu-item a.ui-state-active {
font-weight: normal;
margin: -1px;
}
</style>
If you are using the official jQuery ui autocomplete (i'm on 1.8.16) and would like to define the width manually, you can do so.
If you're using the minified version (if not then find manually by matching _resizeMenu), find...
_resizeMenu:function(){var a=this.menu.element;a.outerWidth(Math.max(a.width("").outerWidth(),this.element.outerWidth()))}
...and replace it with (add this.options.width|| before Math.max) ...
_resizeMenu:function(){var a=this.menu.element;a.outerWidth(this.options.width||Math.max(a.width("").outerWidth(),this.element.outerWidth()))}
... you can now include a width value into the .autocomplete({width:200}) function and jQuery will honour it. If not, it will default to calculating it.
Just so you know you have two options for optimizing your code:
Instead of this:
$('.ui-autocomplete-input').css('fontSize', '10px');
$('.ui-autocomplete-input').css('width','300px');
You can do this:
$('.ui-autocomplete-input').css('fontSize', '10px').css('width','300px');
Or even better you should do this:
$('.ui-autocomplete-input').css({fontSize: '10px', width: '300px'});
I have some JavaScript which is changing an image correctly but once it has been called, my a:hover CSS code no longer works.
Looking with firebug the following JavaScript creates this css rule:
element.style {
background-image:url(/content/images/side_partnershipsOver.png);
}
document.getElementById('partnerships').style.backgroundImage = "url(/content/images/side_partnershipsOver.png)";
How can I apply the JavaScript and not have the a:hover code overriden by the element.style rule?
As far as I know setting the element.style.backgroundImage is essentially the same as using an inline style.
<style type="text/css">
a { background: blue; }
a:hover { background:green; }
</style>
<a href="#" style="background:red;">link<a>
Unfortunately the inline style always wins. In the above sample the link will always be red. As Daniel White said jQuery would be very useful here. Although you may be able to get around this issue in two ways.
One, Generate the style using javascript to write a style tag
document.write("<style type='text/css'>#partnerships { background-image:url(/content/images/side_partnershipsOver.png);}</style>");
or two, Manually setup mouseenter/mouseleave events to handle your hover style
Update
or three, as pointed out by KevinUK, use the !important css tag to override the inline style set.
<style type="text/css">
a { background: blue; }
a:hover { background:green !important; }
</style>
<a href="#" style="background:red;">link<a>
I was also frustrated about this CSS js style gap so I build
methods to apply style from js with a CSS string
elm.jCSS(cssText);elm.jCSSPseudo(cssText,pseudoElt)