How to write CSS code for a nested element? - html

<div class="button share" style="display: none; float: left" id="share_btn_cont">
Share on Facebook
</div>
Here's my code for a Facebook share button. I've added some styling to the <a> element. I'd like to know how to write the CSS code for it in the parent file. How do I call out the <a> element?

The <a> has a class. Just target the class?
.share_btn {
//styling goes here
}

If you just want to write styles in an external css file for all buttons inside the div,
.button.share a.share_btn {
// Add styles here;
}
You could add just a.share_btn, but this will apply to all <a> tags with the class.
If you want styles to be added to just this button, inside this only this div,
#share_btn_cont #share_btn {
// Add styles here;
}
You can use #share_btn_cont > a#share_btn, but this will only look for elements which are one level down.
<div id="share_btn_cont"><a id="share_btn">Some Stuff</a></div>
It will work for the above case, and not for the one below.
<div id="share_btn_cont"><p><a id="share_btn">Some Stuff</a></p></div>
Also, use classes for a general use case, use id for targeting only a particular element.

.parent:first-child {
//code
}

Related

how to code if this element activated the other element changes with html and css

I want to know if it's possible to click on an element and then change another element only using Html and CSS and if it is then how.
some thing like this ( btw this code doesn't work ) :
a:active div{
background-color : blue;
}
Without Javascript your options are rather limited.
You have to find a way to toggle the state by a click and be able to express those states in CSS.
Some option might be theese:
using (hidden?) radiobuttons or checkboxes and using their :checked pseudo class in CSS
using anchors and their pseudo classes (like you already attempted to do)
The problem here is that you have to put all your dynamic contents (the stuff you show/hide on click) inside or next to those toggling elements which might be inpractical.
My favorite is the :target pseudo class. When you open the URL "https://something.com#foobar" the element with the id "foobar" is the current target (if it exists). One limitation of this is that there is only one single target per document. You can control the target by clicking on anchors like this:
.dynamic-content {
display: none;
}
#first:target, #second:target {
display: block;
}
<div>
<div id="first" class="dynamic-content">
First dynamic content
Hide
</div>
<div id="second" class="dynamic-content">
Second dynamic content
Hide
</div>
</div>
Show first
Show second
One way ,I use :focus pseudo class. div:focus a {}

Reset the style of a HTML element

I have a webpage with elements, styles (imported and inline)
I want to reset the style for a specific element.
Example:
HTML:
<div class="parent">
This is the parent div, it colors the <strong>strong in red</strong>
makes a <small>small underlined</small>
<h4>sets a margin-left 10px for a H4</h4>
and many other stuff<br><br>
<div class="child">
this is the child element<br>
here a <strong>strong should not be red</strong><br>
<small>small should not be underlined</small>
<h4>H4 should not have a margin-left</h4>
and so on...
</div>
</div>
CSS:
.parent strong{
color:red;
}
.parent small{
text-decoration: underline;
}
.parent h4{
margin-left: 10px;
}
I want the child div to ignore the styles coming from his parents, including the html element
Here is an illustration of my example
The styles I gave here are just examples, there are much more
I cannot modify the parent CSS, is being dynamically generated
My child div is injected in the page, I can also inject any CSS I want
I cannot know in advance the content of the parent CSS
The only solution I found so far is including the child element in an Iframe, but is really really ugly!!
Any one can help how to achieve this? A JS solution is also acceptable.
.child strong{
color:pink !important;
}
1.You adjust the injecting code css via !important.
2.Even though you can't predict the css of the parents you can only have some basic CSS thing for your injected code.
Example
You can use css immediate child selector '>'
in your example
.parent>h4{
margin-left: 10px;
}
.parent>strong{
color:red;
}
check the updated demo
http://jsfiddle.net/WRDft/11/
Refer: http://msdn.microsoft.com/en-in/library/ie/aa358819(v=vs.85).aspx
CSS '>' selector; what is it?
This question has already been asked and discussed.
There is no way to blanket clear styles but there are work arounds.
Reset/remove CSS styles for element only
If I am understanding you correctly and if you know what content is being injected into your child div then the JQuery solution is very simple:
$(".child strong").css({"color":"black"});
$(".child small").css({"text-decoration":"none"});
$(".child h4").css({"margin-left":"0"});
The JQuery code can then be wrapped in any sort of function you desire.
Here is your fiddle with the JQuery added. Hope that helps.
Note: the JQuery selector - for example: $(".child strong") - can be as specific or as general as you like and you can add as many css rules as you like by using a comma separated list like this:
$(".child strong").css({"color":"black", "font-weight":"bold", "text-decoration":"underline", etc, etc});
Thank you all for your thoughts guys, unfortunately, the best way I managed to achieve this is by wrapping my content inside an IFrame
Advantage: Immediate and easy reset
Disadvantage: I cannot manipulate the elements outside of the IFrame

Target/override inline css from external css

I have very limited knowledge of coding, html/css, but I have a problem which makes me want to learn more. Anyway, I want to change the font-size inside a <span>, nested inside the code of the page. The complete code-snippet looks like this:
<span style="font-size: 11px;">Buy</span>
I want to change that to font-size:14px;. But, since there is no class/ID, just a <span>, I don't understand how to change it. And as I said, it's deep within the document and there are at least 20 divs or some wrapped around it.
Is there a way to target that span, and maybe get the "path". I've been fiddling with Developer Tools in Chrome but I really don't see how XPath can help me?
To sum it up - how do I overwrite inline css (without a class or ID), from an external css?
Thank you.
Sorry if you have already tried this but !important in your css declaration will override any css declarations
You can declare a property as final( in my word ) as below.
Try this in external:
selector {
font-size: 14px !important;
}
You need to have an id to change that particular span's font size. If you change for span than it will affect all spans in the document. Or if the span has a parent element you can select that
.parent span {
font-size:14;
}
update
needs to have !important to override the inline rule.
but who uses inline rules anyways. you shouldn't.
Add a class to it and then target
<span class="target">Buy</span>
Adding a "new" class wont hurt
You cannot target it without a class directly.. maybe the parent div has a class then
<div class="parent">
<span style="font-size: 11px;">Buy</span>
</div>
.parent span{
font-size: 18px !important;
}
You will ahve to use !important to override the inline css.. also keep in mind that this will effect all span inside a div with class of parent
<div style="background: red;">
The inline styles for this div should make it red.
</div>
We can fight that with this:
div[style] {
background: yellow !important;
}
Of course just add a class to the div before [style] to change the div with class you added.
example:
div.myclass[style]

add css properties in my div

Maybe this is an easy stuff for all web designers out there. So here goes. I just want to add a padding-left property to my div which is inside an div element.
This is the structure of my html
<div id="content-sub">
<form action="/en/contact" method="post" id="contact-mail-page">
<div> <!-- *This part is where I want to add the property padding-left*-->
You can leave a message using the contact form below.
...........
</div>
</form>
</div>
Points to consider:
If you're suggesting of adding a class name or id name. No can't do cause I can't find/don't know the location of the contact form file so I can only add this property in the style.css.
Here is some CSS to add:
#contact-mail-page > div { padding-left: 10px; }
This will only apply to the first level of children in the form element, so any divs inside that div tag will not get the padding applied to it.
#content-sub div { padding-left : 10px;}
Here is you can do
#content-sub div {
//add stuff
}

Replace HTML IMG with CSS IMG?

I'm reworking a site but only have permission to change the CSS. Most of the elements I need to change are properly tagged as id's or classes, but a few places have ids or classes listed inside an img tag.
I want to replace that image in the img tag using only css. Is there a way to do this? ie, hide the src img and have only my css referenced image visible?
sorry for such a late post, (almost a year, i know..), but i had the same exact problem Dreamling,
Some of the html used on our site is called up externally, so editing the html was not an option for me either. Here's how i solved the problem... Using only CSS.
Use Firebug if you have it.
Now look for the image you'd like to replace in the HTML. (firebug will show the id's and classes of the elements)
Your HTML should look something like this for it to work. (with an img src element inside a span element)
<span class="Dreamlings_ClassA Dreamlings_ClassB">
<img src="http://www.dreamlingsSite.com/dreamlingspic.png" alt="Dreamling's Pic">
<span>[This is just an extra span!] </span>
</span>
Now for the CSS :)
Call up the first element by class in the css. (use the last class name to be more specific in with editing [if you have multiple span elements with same first class name])
<span class="Dreamlings_ClassB">
should look something like this..
span.Dreamlings_ClassB {
background-image: url('../dreamlingsnewpic.png') !important;
}
and to hide that pesky image in the img src element..
span.Dreamlings_ClassA img {
display: none !important;
}
And thats it! :)
p.s. I was using the !important tags in my css to overwrite other external stylesheets..
but you don't have to use the tags if yours css will work without them. (you just have to be more specific in the css with id's and classes)
Hope this helped!
-tony
If your image tag is inside a container, anything that's a block, then use this:
<style>
#container {
background: url('image.png') no-repeat;
text-indent: -9999;
}
</style>
<div id="container">
<img src="image.png" alt="image to be replaced" />
</div>
As others said, it's really not good practice, but it works. Only tested in Chrome.
I want to replace that image in the img tag using only css.
Not that I know of, no. An image's src attribute can't be altered from CSS.
I also can't think of a workaround to do this, not even a terribly kludgy one. You can of course assign a background-image to the image element, but the actual image will always be in front of it,
You would have to have the original HTML altered in a way so the original button is a <button> element with a background-image property - that you can override using CSS.
Restricting access to the HTML but allowing access to edit CSS is odd practice. Both elements go hand in hand to produce the page.
Anyway, you could try removing or changing the name of "btn_next.png" so that it doesnt display when called from "src" and make the CSS the following:
#btn_next {
background: url('image.png') no-repeat;
display:block;
width:150px; /* for example */
height:30px; /* for example */
}
If that doesnt work, the only other way would be to hide the input button and replace the li row with a background image but then the button will cease to work. Unless you have access to an already included javascript file, then you can look at other solutions.