How do I exclude a particular class from a CSS property? - html

I'm trying to not apply hoover on one of my CSS class with the :not() selector.
.left-menu-sidenav a:not(.selected):hover {
background-color: #6689E6;
color: white;
width: 100%;
}
<div className="left-menu-sidenav">
<a href="/">
<img alt={"left-menu"} className="left-menu-logo-image selected" src={left_menu_logo}></img>
</a>
</div>
I have a lot of tag in my page and I have to keep this logo in the "left-menu-sidenav".
What did I miss to exclude the hover from this particular class?

The a:not(.selected) is rereferring to an <a> tag selector but your HTML code has no class at all, only the <img/> within it has a selected class.
Consider why your image has this class, what toggles it.
Probably it should be moved to the parent <a> tag

Related

Exclude Element From CSS Class In Div

Is it possible to not apply a css class to a specific element in the class?
For example:
<div className="container-fluid bg-2 text-center">
<h3>LinkedIn</h3>
<a target="_blank" href= {"https://www.linkedin.com"}><img src={linkedin} className={"linkedin"}/></a>
<p>Please follow my LinkedIn account to get updated on my experiences and skills and join my network!</p>
</div>
In this code I would like to exclude the img tag from the container class so the CSS isn't applied to that element. I know I could just make two separate divs of the same class and put the anchor tag in the middle but I want to know if I can do this programmatically.
div.dummy :not(a):not(img) {
background: black;
color: white;
font - size: 20 px;
width:100%;
height:50px;
position:relative;
}
<div class="container-fluid dummy bg-2 text-center">
<h3>LinkedIn</h3>
<a target="_blank" href={ "https://www.linkedin.com"}>
<img src={linkedin} class={ "linkedin"}/>
</a>
<p>Please follow my LinkedIn account to get updated on my experiences and skills and join my network!
</p>
</div>
You can see in the above demo that except img tag, all are getting affected.
Try using :not selector
Read here consulting can i use
else have a particular css for the img overriding any css you want.
The`:not(selector) selector matches every element that is NOT the specified element/selector.
:not(.container>img) {
background-color: blue;
//your css here
}

Hide an image inside a link based on attribute selector with CSS

This is the markup:
<p>
<a href="http://www.domain.com/stack-2015-overflow-648198/">
<img src="link to image">
See also: Stack 2015 and Overflow Review </a>
</p>
The content is loaded by AJAX but I think it should still be styled with CSS. Here is my CSS:
a[href*="www.domain.com"] img { display: none; }
but it does not work. What am I missing?
I've been using CSS for a long time, and I've never seen anything like that. You should apply a class or ID to the anchor tag and then reference it as:
#anchorId>img {
display: none;
}

Div link and hover does not work

I am building new website and I've run into a little problem.
When I added next to my div and after the div end, but the hover does not work on the div. When I delete <a href"about.php"> and </a> the hover works.
Here is HTML code:
<div id="centerbox">
<div class="profile"></div>
<a style="display:block" href="about.php"><div class="about"></div></a>
</div>
</div>
And here is CSS Code
#centerbox {
width:988px;
height:462px;
margin-top:8.7%;
margin-right:auto;
margin-left:auto;
}
.about {
width: 150px;
height: 150px;
display: block;
margin-left:15.8%;
margin-top:-150px;
background:url(/images/about1.png);
background-repeat:no-repeat;
}
This problem is that the div is a block element and the a tag is an inline element. A block element cannot go inside of an inline. You'll need to change your <div> to a <span> or something that is inline.
When an block element is inside the inline the browser will usually try to fix it by moving it out of the inline element.
If you need the effect of the block element on say the <span> mentioned above you could add display:block to the span.
See this post for further clarification
Make the .hover on your (a) tag rather then the class you are applying it to that should probably work :)
I solved it. I changed the <a style="display:block" href="about.php"><div class="about"></div></a> to <div class="about" onclick="window.location = 'about.php';">
You don't want to store a div inside of an ref tag. You can give that ref tag a class though which will give it styling for that class

Applying Style to Parent By Selecting Child

It appears some browsers (Chrome at least) put a partial underline under images that are nested inside of an anchor tag, like this:
<img src="/foo.jpg" />
So I'm looking for a way to add text-decoration: none; to any anchor tags that contain an img tag. My first thought was this:
a img {
text-decoration: none;
}
Of course that doesn't work, because the style gets applied to the img tag, and not the anchor. So is there a selector I can use to apply the text-decoration style to any anchor tag with a img child?
EDIT:
My HTML typically looks like this:
<a href="#">
<img src="/foo.jpg" />
</a>
The way I space and tab the elements is adding extra whitespace between the anchor tag, and image tag. It's that white space that's being underlined.
If you're against adding a class to this <a> tag (which is the simple solution), your next best CSS solution would be to remove text-decoration on the <a> tag, and wrap the text you want to have underlined in an inline element. See below:
For images:
<a href="#">
<img src="/foo.jpg" alt="etc" />
</a>
For text:
<a href="#">
<span>Text that you probably want underlined</span>
</a>
Combined:
<a href="#">
<img src="/foo.jpg" alt="etc" /> <span>Text that you probably want underlined</span>
</a>
CSS:
a { text-decoration: none; }
a:hover span { text-decoration: underline; }
Unfortunately there is no way currently of selecting the parent of an element using just CSS.
You would need to resort to javascript or jQuery.
Personally I would do something in jQuery like
$('a>img').parent().addClass('noTextDecoration');
then in css have the following:
a.noTextDecoration {test-decoration:none;}
I just use
img {
border:none;
}
So far as I can tell, there is no way to select an element's parent in CSS. You could try applying some class, i.e. imagelink to A elements that contain IMG elements, though.
If the href attribute of these anchors always points to images, and no anchors point to images besides the one with actually an img tag inside, then you can use:
a[href$=".gif"],
a[href$=".png"],
... ,
a[href$=".jpg"] {
text-decoration: none;
}

a href link for entire div in HTML/CSS

Here is what I am trying to accomplish in HTML/CSS:
I have images in different heights and widths, but they are all under 180x235. So what I want to do is create a div with border and vertical-align: middle them all. I have successfully done that but now I am stuck on how to properly a href link the entire div.
Here is my code:
<div id="parentdivimage" style="position:relative;width:184px;height:235px;border-width:2px;border-color:black;border-style:solid;text-align:center;">
<div id="childdivimage" style="position:absolute;top:50%;height:62px;margin-top:-31px;">
<img src="myimage.jpg" height="62" width="180">
</div>
</div>
Please note that for the sake of copy pasting here easily, the style code is inline.
I read somewhere that I can simply add another parent div on top of the code and then do a href inside that. However, based on some research it won't be valid code.
So to sum it up again, I need the entire div (#parentdivimage) to be a href link.
UPDATE 06/10/2014: using div's inside a's is semantically correct in HTML5.
You'll need to choose between the following scenarios:
<a href="http://google.com">
<div>
Hello world
</div>
</a>
which is semantically incorrect, but it will work.
<div style="cursor: pointer;" onclick="window.location='http://google.com';">
Hello world
</div>
which is semantically correct but it involves using JS.
<a href="http://google.com">
<span style="display: block;">
Hello world
</span>
</a>
which is semantically correct and works as expected but is not a div any more.
Why don't you strip out the <div> element and replace it with an <a> instead? Just because the anchor tag isn't a div doesn't mean you can't style it with display:block, a height, width, background, border, etc. You can make it look like a div but still act like a link. Then you're not relying on invalid code or JavaScript that may not be enabled for some users.
Do it like this:
Parentdivimage should have specified width and height, and its position should be:
position: relative;
Just inside the parentdivimage, next to other divs that parent contains you should put:
<span class="clickable"></span>
Then in css file:
.clickable {
height: 100%;
width: 100%;
left: 0;
top: 0;
position: absolute;
z-index: 1;
}
The span tag will fill out its parent block which is parentdiv, because of height and width set to 100%. Span will be on the top of all of surrounding elements because of setting z-index higher than other elements. Finally span will be clickable, because it's inside of an 'a' tag.
Going off of what Surreal Dreams said, it's probably best to style the anchor tag in my experience, but it really does depend on what you are doing. Here's an example:
Html:
<div class="parent-div">
Test
Test
Test
</div>
Then the CSS:
.parent-div {
width: 200px;
}
a {
display:block;
background-color: #ccc;
color: #000;
text-decoration:none;
padding:10px;
margin-bottom:1px;
}
a:hover {
background-color: #ddd;
}
http://jsbin.com/zijijuduqo/1/edit?html,css,output
Two things you can do:
Change #childdivimage to a span element, and change #parentdivimage to an anchor tag. This may require you to add some more styling to get things looking perfect. This is preffered, since it uses semantic markup, and does not rely on javascript.
Use Javascript to bind a click event to #parentdivimage. You must redirect the browser window by modifying window.location inside this event. This is TheEasyWayTM, but will not degrade gracefully.
I'm surprised no one suggested this simple trick so far! (denu does something similar though.)
If you want a link to cover an entire div, an idea would be to create an empty <a> tag as the first child:
<div class="covered-div">
<a class="cover-link" href="/my-link"></a>
<!-- other content as usual -->
</div>
div.covered-div {
position: relative;
}
a.cover-link {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
This works especially great when using <ul> to create block sections or slideshows and you want the whole slide to be a link (instead of simply the text on the slide). In the case of an <li> it's not valid to wrap it with an <a> so you'd have to put the cover link inside the item and use CSS to expand it over the entire <li> block.
Do note that having it as the first child means it will make other links or buttons inside the text unreachable by clicks. If you want them to be clickable, then you'd have to make it the last child instead.
In the case of the original question:
<div id="parentdivimage" style="position:relative;width:184px;height:235px;border-width:2px;border-color:black;border-style:solid;text-align:center;">
<a class="cover-link" href="/my-link"></a> <!-- Insert this empty link here and use CSS to expand it over the entire div -->
<div id="childdivimage" style="position:absolute;top:50%;height:62px;margin-top:-31px;">
<img src="myimage.jpg" height="62" width="180">
</div>
<!-- OR: it can also be here if the childdivimage divs should have their own clickable links -->
</div>
Make the div of id="childdivimag" a span instead, and wrap that in an a element. As the span and img are in-line elements by default this remains valid, whereas a div is a block level element, and therefore invalid mark-up when contained within an a.
put display:block on the anchor element. and/or zoom:1;
but you should just really do this.
a#parentdivimage{position:relative; width:184px; height:235px;
border:2px solid #000; text-align:center;
background-image:url("myimage.jpg");
background-position: 50% 50%;
background-repeat:no-repeat; display:block;
text-indent:-9999px}
<a id="parentdivimage">whatever your alt attribute was</a>
This can be done in many ways.
a. Using nested inside a tag.
<a href="link1.html">
<div> Something in the div </div>
</a>
b. Using the Inline JavaScript Method
<div onclick="javascript:window.location.href='link1.html' ">
Some Text
</div>
c. Using jQuery inside tag
HTML:
<div class="demo" > Some text here </div>
jQuery:
$(".demo").click( function() {
window.location.href="link1.html";
});
I simply do
onClick="location.href='url or path here'"
What I would do is put a span inside the <a> tag, set the span to block, and add size to the span, or just apply the styling to the <a> tag. Definitely handle the positioning in the <a> tag style. Add an onclick event to the a where JavaScript will catch the event, then return false at the end of the JavaScript event to prevent default action of the href and bubbling of the click. This works in cases with or without JavaScript enabled, and any AJAX can be handled in the Javascript listener.
If you're using jQuery, you can use this as your listener and omit the onclick in the a tag.
$('#idofdiv').live("click", function(e) {
//add stuff here
e.preventDefault; //or use return false
});
this allows you to attach listeners to any changed elements as necessary.
A link with <div> tags:
<div style="cursor: pointer;" onclick="window.location='http://www.google.com';">
Something in the div
</div>
A link with <a> tags:
<a href="http://www.google.com">
<div>
Something in the div
</div>
</a>