Overview
As we have already seen some Trending CSS in our Previous Blog, In this blog we have covered other new properties.
Aspect Ratio:-
Generally we use padding-top CSS for maintaining the aspect ratio of background-images across various screens.
It is calculated in percentage as height / width * 100. if we wanted a 1:1 aspect ratio then we should simply apply CSS padding-top:100%;
If we want aspect ratio like:-
3:4 -> padding-top:75%;
1:2 -> padding-top:50%;
9:4 -> padding-top:56.25%;
E.g:-
But now we can apply our required aspect ratio by using the “Aspect Ratio” property. Below is an example of how we can write this property:-
.example { width: 300px; aspect-ratio:1/1; }It will create 1:1 aspect ratio div which has the same width & same height
Here is a Browser support list for aspect-ratio CSS:
Inset:-
Inset is a shorthand property of top, left, bottom, right properties. It will apply the same as we are giving padding & margin CSS to an element. By using this property our code will get reduced
Code examples for inset property:
inset: 20px; /* value applied to all edges */inset: 10px 15px; /* top/bottom left/right */inset: 15px 20px 25px; /* top left/right bottom */inset: 50px 20px 30px 20px; /* top right bottom left */ /* values in percentage*/inset: 10% 5% 5% 5%; /* Keyword value */inset: auto; /* Global values */inset: inherit; inset: initial; inset: unset;
Here is an example of how we can use the inset property. In the below example, we have applied inset for top/bottom & left/right
Browser support for inset property:
is() Selector:-
When we are sure with our children elements or sub-elements then we can use is() selector. Let’s understand it by one small example
<header class="is-styling"> <p>header content. This <a href="#">contains a link</a>. </header> <div class="is-styling"> <p>div content. This <a href="#">also contains a link</a>. </div> <footer class="is-styling"> <p>footer, also containing <a href="#">a link</a>. </footer>
For this HTML code we will use is() selector in CSS and check the output
:is(header.is-styling, div.is-styling, footer.is-styling) a {
color: red;
}
footer a {
color: blue;
}Output:-
As the above result we can see “footer a” CSS is not overridden by our is() selector CSS.
Browser support for is() selector
where() Selector:-
:where() has no specificity , it can be overridden by any any element let’s see the above example by just changing CSS to where.
:where(header.is-styling, div.is-styling, footer.is-styling) a {
color: red;
}
footer a {
color: blue;
}
Output:-
As the above result we can see “footer a” CSS is overridden by our is() selector CSS.
Browser support for where() selector:-
Conclusion
I hope that this blog might be useful to write new CSS in your code. In the future, we will bring more blogs on new CSS properties.
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