Introduction to CSS
CSS (Cascading Style Sheets) is a stylesheet language used for describing the presentation of a document written in HTML. It is responsible for the visual design and layout of webpages. As a senior engineer interested in learning frontend technologies, having a solid understanding of CSS is essential.
CSS uses a combination of selectors and declarations to target HTML elements and apply styles to them. Selectors specify which elements to target, while declarations define the styles to be applied.
Here's an example of CSS code:
1#myElement {
2 background-color: red;
3 font-size: 20px;
4}In the above code snippet, we are targeting an element with the id myElement and setting its background color to red and font size to 20 pixels.
CSS provides a wide range of styling options, including colors, fonts, layouts, animations, and more. By mastering CSS, you'll be able to create visually appealing and user-friendly webpages.
Let's see an example of how CSS can be used to style an HTML element:
1<!DOCTYPE html>
2<html>
3 <head>
4 <style>
5 #myElement {
6 background-color: red;
7 font-size: 20px;
8 }
9 </style>
10 </head>
11 <body>
12 <div id="myElement">
13 This is a styled element.
14 </div>
15 </body>
16</html>In the above example, we have an HTML document with a div element that has the id myElement. We use CSS to target this element and apply the specified styles.
By combining HTML and CSS, you can create beautifully designed webpages and bring your frontend projects to life.
xxxxxxxxxxconst element = document.getElementById('myElement');// Set background color to redelement.style.backgroundColor = 'red';// Set font size to 20 pixelselement.style.fontSize = '20px';