What used before CSS?
Before CSS, nearly all presentational attributes of HTML documents were contained within the HTML markup. All font colors, background styles, element alignments, borders and sizes had to be explicitly described, often repeatedly, within the HTML. … The W3C has now deprecated the use of all presentational HTML markup.
What is use of after and before in CSS?
CSS ::before Selector
The ::before selector inserts something before the content of each selected element(s). Use the content property to specify the content to insert. Use the ::after selector to insert something after the content.
Why was CSS invented?
HTML was NEVER intended to contain tags for formatting a web page! … Development of large websites, where fonts and color information were added to every single page, became a long and expensive process. To solve this problem, the World Wide Web Consortium (W3C) created CSS.
What are the versions of CSS?
CSS3 is the latest version of CSS. It is only compatible with IE9 and not with older versions of browsers. The more you code, the more you will learn about CSS3 but there is one thing to note — you cannot master CSS3 unless you know about CSS.
Who is the father of CSS?
At this week’s Opera press event held in Oslo, Norway, I had a chance to spend a couple of minutes talking to Håkon Wium Lie, who is not only the software company’s chief technology officer but also broadly known as the “father of CSS”.
What are the 3 types of CSS?
There are three ways you can use to implement CSS: internal, external, and inline styles.
What Is REM in CSS?
To recap, the rem unit means “The root element’s font-size”.
(rem stands for “root em”.) … However, if you change the <html> font-size in the CSS you will see that everything else changes relative to it — both rem – and em -sized text.
What is the use of & in CSS?
The & is an extremely useful feature in Sass (and Less). It’s used when nesting. It can be a nice time-saver when you know how to use it, or a bit of a time-waster when you’re struggling and could have written the same code in regular CSS.
What are CSS pseudo classes?
A CSS pseudo-class is a keyword added to a selector that specifies a special state of the selected element(s). For example, :hover can be used to change a button’s color when the user’s pointer hovers over it.
Is there a disadvantage in using CSS?
What are the disadvantages of CSS? CSS renders different dimensions with each browser. Programmers are required to consider and test all code across multiple browsers for compatibility before taking any website or mobile application live. … This has been confusing for developers and browsers.
Who found HTML?
How old is css3?
On December 17, 1996, W3C published the first standard for CSS. And thus from December 17, 2016 until one year later, CSS is 20 years old.
Which is better CSS or CSS3?
Using CSS, we cannot build 3D animation and transformation. But in CSS3 we can perform all kinds of animation and transformations as it supports animation and 3D transformations. Whereas, CSS3 is faster than CSS. In CSS we have a good collection of unique color schemas and standard color.
What is CSS2?
CSS2 is a style sheet language that allows authors and users to attach style (e.g., fonts, spacing, and aural cues) to structured documents (e.g., HTML documents and XML applications). By separating the presentation style of documents from the content of documents, CSS2 simplifies Web authoring and site maintenance.
What is the difference between CSS and W3 CSS?
W3. CSS is a modern CSS framework with built-in responsiveness. It supports responsive mobile first design by default, and it is smaller and faster than similar CSS frameworks. … CSS can also speed up and simplify web development because it is easier to learn, and easier to use than other CSS frameworks.