I am using a CSS library that relies on Less. In order to override the CSS properties of a certain element I am trying to use the higher degree of specificity technique by wrapping a parent element "commentPaddingFix" as so:
<div class='commentPaddingFix'>
<div class='Child1'>
<div class='Child2'>
<div class='ant-comment-inner'>
</div>
</div>
</div>
</div>
And in the Less file:
.commentPaddingFix {
.ant-comment-inner {
padding-bottom: 0px !important;
padding-top: 0px !important;
}
}
I need a solution that works when you know the className of the element you are targeting for any arbitrary number of nested parent elements. I can't use nth child technique as the children numbers vary from render to render.
I don't know Less but if that works anything like Sass your solution should work.
Here's what it looks like with pure css: https://codesandbox.io/s/condescending-bhaskara-3781k.
Related
I am in the process of making my own website, and I am making it out of pure HTML. I encountered in the making of the page, as I will describe below.
Here's my code for reference :-
<head>
<style>
img {
display: block;
margin-left: auto;
margin-right: auto;
}
</style>
<style>
.sideDiv {
border: 1px outset black;
background-color: white;
text-align: center;
width: 120;
height: 400;
}
</style>
<style>
.mainDiv {
border: 1px outset black;
background-color: white;
text-align: left;
width: 400;
height: 300;
}
</style>
<img src="AyushLogo.png" alt="logo" height="9.2%" width="9.2%" style="float:left">
<br>
<a><button>About Me</button></a>
<a><button>Games</button></a>
<a><button>My Blog</button></a> <br><br>
<hr>
</head>
<body>
<div class="sideDiv">
</div>
<div class="mainDiv">
<p>Hi,<br>My name is Ayush Bhatt.<br><br>I love to code and remake old games. You can view some of my games by clicking on the 'Games' button on the top bar.</p>
</div>
</body>
</html>
The output looks like this :-
I wanted the tag with the "mainDiv" properties to appear at the side of the one with the "sideDiv" properties, but it just doesn't want to.
PS : I want to use only HTML as long as possible
An important thing about <div> tags is that they are known as "block-level" elements, which in particular means that they always start on a new line and take up the full width available, regardless. With this in mind,
writing
<div class="sideDiv"></div>
<div class="mainDiv">
...
</div>
should result in a div with class sideDiv and width as defined in the class, and then a new div with class mainDiv started on a new line, as block-level elements do by default, though note that this is simultaneously also because the div with class sideDiv takes up the remaining width on the page as a block-level element (though its content width is as described in the class, it being a block-level element is a bit like it "reserving" the rest of the width even though its content only uses the amount defined), so the next element (block level or inline) can only start on at least the next line.
If you want to circumvent this behavior, there are many ways to do it. One is by using an external tool like bootstrap, as pointed out by another answer, but my favorite is to simply use flex box. This can be done for your code in this way
<div style="display: flex; flex-direction: row;">
<div class="sideDiv"></div>
<div class="mainDiv">
...
</div>
</div>
A method that directly overwrites the block-level property would be to set the style display: inline-block; for both divs, to prevent either from starting on a new line or taking up the whole available width by default. (Just one isn't enough, if you only set it on the first one, the second still starts on a new line by default, and if you only set it for the second one, the first still takes up all available width by default). However, this causes the element to be treated completely as an inline element besides the fact that block-level height and width can be applied, and can be strange/difficult to maneuver as a result. It is often easier to just use a flex box. Code for this would be
<div class="sideDiv" style="display: inline-block;"></div>
<div class="mainDiv" style="display: inline-block;">
...
</div>
However, note that <p> is also a block-level element, so directly substituting in your original code in the mainDiv div would still cause it to skip a line before displaying. Again, it is usually easier, more modern, and better looking to just use a flex box.
Edit: Added the detail about block-level elements taking up all available width, and fixed the incorrect initial method that changed the display property to overwrite the block-level property by setting display: inline;. This can work, but it will ignore the heights and widths of the <div>s.
try using bootstrap , it deals with layout perfectly , here is an example :
<div class="container">
<div class="row">
<div class="col-md-6">
this is the left section
</div>
<div class="col-md-6">
this is the right section
</div>
</div>
</div>
for more details check :
https://getbootstrap.com/docs/5.0/layout/grid/
NOTE : you will need to include bootstrap and jQuery libs , check for online tutorial to start using bootstrap
Say I have the following HTML structure:
<div id="outer">
<div id="target">
</div>
</div>
The outer div may or may not have the id "outer".
I want to apply styles to #target only when its not contained within a div having the id "outer":
<div id="something-else">
<div id="target">
</div>
</div>
With LESS, I tried the following:
:not(#outer) {
#target {
// styles
}
}
This doesn't work apparently (I guess because the :not operator is not excluding its nested elements).
Is there any way to achieve this with CSS / LESS? Of course I know that I can refactor the html / logic so that I apply the styles without using :not, but I'm wondering if theres a way to achieve what I'm asking as is.
Try this
:not(#outer) > #target {
// Styles
background-color: red;
}
}
Here's a little fiddle you can try.
I always wondered how can you select an element that is deeply buried in other elements that have classes and id's ?
For example :
<div class="container" id="footer">
<div class="sixteen columns"><span>some text here</span>
If I want to select element then what I would do is write in CSS the following :
.container #footer .sixteen .columns span {
font-weight: bold;
}
Unfortunately it seems that this method is not valid or recognized by browsers.
Let's say that I don't want to give any general styles to 'sixteen columns' class or span itself. I just want to apply very specific styles to this very specific element.
How should I select that span element ?
Given your code:
<div class="container" id="footer">
<div class="sixteen columns"><span>some text here</span>
</div><!-- I've chosen to close the opened div element -->
Your selector cannot work, but it is definitely "recognized by browsers." The problem is that it is not, as you say, 'valid' (for the HTML structure that you have).
The problem is that, in CSS, white-space implies an ancestor-descendant relationship, so:
E F
Selects an element, matching selector F, that is a descendant of selector E; your own selector:
.container #footer .sixteen .columns span
selects a <span> element, within an element of class 'columns', within an element of class 'sixteen', within an element of id="footer" itself within an element of class 'container'; giving HTML:
<element class="container">
<element id="footer">
<element class="sixteen">
<element class="columns">
<span></span>
</element>
</element>
</element>
Which bears no resemblance to your own HTML. As white-space establishes an ancestor-descendant relationship, the corollary is that no white-space implies the same element, which is what you were aiming for, I think. Omitting the white-space, then, gives the following selector:
#footer.container .sixteen.columns span {
/* CSS here */
}
This selector is, probably, overly complex (given that an id uniquely identifies an element1), and could be re-written as simply:
#footer .sixteen.columns span {
/* CSS here */
}
Or even, if you're willing, and able, to sacrifice some specificity:
#footer span {
/* CSS here */
}
Note that a class-name is often used in JavaScript to denote a state, state-change or interaction of some kind; so it's not definitively redundant to combine an id with a class (#footer.container), but if the class is not dynamically added or removed, it probably is redundant and unnecessary. As with all things in web-development, it's worth experimenting to find out what works for you; contemporary browsers are fast enough for the most part, that adding a class-name to the selector isn't going to slow things down substantially, but beware of time-critical use-cases, when it's best to remove everything that's not absolutely necessary.
References:
CSS Selectors (and combinators).
with:
#footer > .sixteen.columns > span
Your selector does not work because you have spaces between selectors which refer to the same element.
e.g. .container #footer
But the space reads: "find an element with the id footer that is a descendant of an element with a class that is container". But you mean: "find an element that has the class container AND the id footer" which you can do by concatenating them without a space:
e.g. .container#footer
See: https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_started/Selectors
Rearrange your selector like this
#footer.container .sixteen.columns span {
font-weight: bold;
}
<div class="container" id="footer">
<div class="sixteen columns">
<span>some text here</span>
</div>
</div>
#footer span { font-weight: bold; }
<div class="rightsidebox">
<div class="item-info-list">
<p>Model: AIDCU</p>
<div class="product-details">
<p></p>
<div class="price-box"> <span class="regular-price" id="product-price-1617-related">
<span class="price">$8.99</span></span>
</div>
<p></p>
</div>
</div>
I want to make a style for price and make the color green just in a case it is in the rightbox div and I want to use css , I cannot change the structure because it is a theme and it should not have conflict with other prices in other themes
I can use div.rightsidebox>div.item-info-list
but I cannot go further because of the paragraph in there
how can I solve it? I have weakness in using ">" and multiple classes in each other
This I believe is what you are looking for:
div.rightsidebox>div.item-info-list>div.product-details {
background:#ff0000;
}
JSFiddle: http://jsfiddle.net/RF5e7/
If you merely just want to select the price and make it green if it is contained by rightbox:
.rightsidebox .price {
color: green !important;
}
.rightsidebox .price { color: green !important; } // important to override other styles
EDIT: Usage of > - selectorr
The element>element selector is used to select elements with a specific parent. Note: Elements that are not directly a child of the specified parent, are not selected. More info
div.rightsidebox>div.item-info-list .price{
color: green;
}
JSFiddle example.
.rightsidebox .item-info-list p {
/* code */
}
This would go down to the paragraph element inside the classes defined there inside the stylesheet (above off course).
You don't need to be using div.rightsidebox that is required only if you're having class names for multiple elements. Otherwise only .rightsidebox is OK.
You can learn more about the CSS child selectors here: https://developer.mozilla.org/en-US/docs/Web/CSS/Child_selectors
Good day guys! I'm a newbie here and I'm just wondering how to use div id and div class. Let's say for example, I want to have many div boxes in my site with all the same styles in each box. Is this the right thing to do? Please enlighten me.
HTML:
<div id="body">
<div id="box1" class="style"></div>
<div id="box2" class="style"></div>
<div id="box3" class="style"></div>
//(and so on)//
</div>
CSS:
.style {
//(put elements here)//
}
There is not really a right thing to do as everything depends on the situation and circumstances.
Why would you think that this would be the "wrong" thing to do? This cuts down on the amount of code you have to write, so it is favorable, correct?
You can also use the IDs you have to override styles for the <div>s individually:
.style {
color: red;
}
#body1 {
color: blue;
}
Due to the fact that elements, IDs, and classes each have difference selector precedence, I advise against using anything except for classes and psuedo-classes no matter how attractive other prospects may seem. If you're disciplined about it, your CSS will be easier to update later on. The above example would work exactly the same if body1 were a class instead of an ID (I would suggest using IDs to identify unique elements for DOM manipulation, though).
I would also follow the W3C's advice when picking class names for elements and using them in your HTML:
...authors are encouraged to use values that describe the nature of the content, rather than values that describe the desired presentation of the content.
ID's are unique:
-Each element can have only one ID
-Each page can have only one element with that ID
Classes are NOT unique:
-You can use the same class on multiple elements.
-You can use multiple classes on the same element.
Yes that would work. Though the id's would not be needed if all you want to do is apply the same style to all 3.
http://www.w3schools.com/tags/att_global_id.asp
http://www.w3schools.com/tags/att_global_class.asp
Yes You can do that if you want to have same style applied to all divs than you can definitely use class to apply styling to divs. If your div is going to be different than others than you can can probably use id which will allow you to access that div through javascript also.
If it is only styling then id is not really required and you need not to give class name if it is same class for all child divs.
HTML
<div id="body">
<div></div>
<div></div>
<div></div>
</div>
CSS
#body div {
background:red;
width:100px;
height:100px;
display:inline-block
}
DEMO
You can use "class" in many div's but you can use "id" in only one place. Because ID should be unique in each page.
<div id="body">
<div class="mystyle"></div>
<div class="mystyle"></div>
<div class="mystyle"></div>
//(and so on)//
</div>
<style>
.mystyle{color:#000;}
<style>
You can use this
<div id="demo">
<div class="box test"></div>
<div class="box test"></div>
<div class="box test"></div>
</div>
CSS:
#demo
{
margin:0;
padding:0;
}
.box
{
Width:100px;
height:50px;
background:red;
}
.test
{
color:white;
}
you can apply two class.