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Why Cascading Style Sheets (CSS) Are Important For Web Development?

web development

Article Overview

Reading Time: 8 minutes

Posted on: Saturday May 30, 2020

Do you know about HTML (Hypertext Markup Language)? This coding language is considered as foundation in web development. Moreover, if HTML is the first language required to be learnt by enthusiasts of web development, CSS is the second one to fall in this category. Keeping this factor in mind, we’ve compiled a brief overview here:

  • What is CSS? How Does It Impacts HTML?

CSS or Cascading Style Sheets have good emphasis on “Style.” Since HTML structures a web document (defining components like headlines/paragraphs, and allowing web developers to embed media like image and videos), CSS specify your document style—page layouts, colors, and fonts. In brief, HTML is the foundation while CSS is the front view choice.

  • How Does CSS Work?

CSS import style in any web page by communicating with HTML elements. These are individual HTML components of any web page—for example a paragraph—which appears like this:

<p> This is my paragraph! </p>

If you desire to make this paragraph appear red and bold to viewers through a web browser, you can add a CSS code like below:

p  {  color:red;  font-weight:bold;  }

Here “p” (the paragraph) is referred as “selector”—it is a part of CSS code specifying which HTML element the styling will affect. In CSS, specifics’ are written in the left of first curly bracket. The details between curly brackets are referred as declaration having properties and values applied in the selector. Properties are elements like color, and margins, font size, while values are useful for properties. In the above example, “color” and “font-weight” are properties, and “pink” and “bold” are values. The full bracketed set of

{  color:red;  font-weight:bold;  }

is the affirmation, and “p” (means HTML paragraph) is the selector. The same principles are applicable for making changes into font size, background color, margin indentations, and more. Again for example. . .

body  {  background-color:lightgrey;  }

. . .would make your page’s background light grey, or. . .

p  {  font-size:25px;  color:yellow;  }

. . .will create a 25 point font paragraph with yellow letters.

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  • Internal, External, or Inline CSS?

Now might be thinking about the process to apply this CSS code into HTML content. Just like HTML, CSS is also penned in easy, plain text using a text editor or word processor through 3 main ways for adding the CSS code into HTML page. CSS codes (or Style Sheet) can be internal, external, or inline. External style sheets gets saved as .css files and utilized for determining the visibility of an entire website through one file (apart from adding individual chunks of CSS code to every HTML element needed to adjust). For applying an external style sheet, your .html files requires including a header section linked to the external style sheet, which appears like this:

<head>

<link rel=”stylesheet”  type=”text/css”  href=mysitestyle.css”>

</head>

This will connect the .html file to external style sheet and every CSS instructions in the file will get applied to linked .html pages.

The internal style sheets are CSS instructions jotted directly in headers of specific .html page. (It’s precisely useful for a single page on any website having unique looks.) An internal style sheet looks something like this. . .

<head>

<style>

Body  {  background-color:lightblue;  }

P  {  font-size:25px;  color:mediumbrown;  }

</style>

</head>

. . . a light blue background color and paragraphs with 25 point, medium brown font will get applied to this single .html page.

The inline styles are snippets of CSS written directly into HTML code, but applicable to a single code. For example:

<h1  style=”font-size:45px;color:green;”>Check out this headline!</h1>

would cause one specific headline on a single .html page to appear in green, 45 point font.

Conclusion

Basically, external style sheets is foremost effective method for implementing CSS on a website, while internal style sheets and inline style are useful on case basis when specific style changes required to be made. So if HTML is foundation, frames, walls, and girders support your website, CSS brings color, window styles, and landscaping which comes afterward. Nobody gets anywhere without a proper foundation up first, but—once you do—you’ll want to follow up with some style, and CSS is the ticket to unleashing your inner decorator.