HTML

Introduction to HTML

HTML is a markup language that provides the basic building blocks for web pages. HTML allows you to define headings, paragraphs and lists; create links between pages; add images and video; style your text with boldface or italics; even embed interactive elements like forms and buttons.

The history of HTML began in 1989 when Tim Berners-Lee created the first version of what would become the world wide web (www). In 1991 Marc Andreessen released Mosaic, an early browser that allowed people to view documents on their computers in a graphical format rather than just plain text as they had been accustomed to doing up until that point. This new way of viewing information led directly towards what we know today: websites!

Basic HTML Structure

HTML is a markup language. It's used to describe the structure of a document, and it's made up of tags and elements.

  • Tags: Tags are used to mark up content on your website. They're written within angle brackets (for example, <p> and </p>), and they tell browsers how to display that part of the page. For example, when you write <h1>, it tells browsers that whatever comes after should be displayed as large text at the top of the page or section (depending on how your CSS is set up).
  • Elements: Elements are pieces of content inside an HTML document--for example, paragraphs or headings are both types of elements that can appear inside an HTML document.<br><br>Elements are always nested inside other elements; for example, if you want two paragraphs side by side instead of one above another like we've seen so far in this guide then we need two <p> tags with different attributes set on each one.<br><br>There are many different types of elements available in HTML5 including lists (<ol>,<ul>,<li>) tables (<table>,<tr>,<td>) forms (<form>) etc...

Adding Content to HTML

To add content to an HTML document, you need to use tags. These are the words that tell the browser what kind of content you want it to display.

  • Headings: <h1>, <h2>, <h3>, etc.
  • Paragraphs: <p>
  • Lists: <ul> and <ol> (unordered list) or <li> (list item)
  • Links: a link can be created by using the anchor tag (<a>) followed by an href attribute that defines where you want the link to go when clicked on by users. For example, if I want my readers to be able to click on "Learn More" at the end of this article and be taken directly into another article about HTML coding then all I need is this code snippet:
  • Images: You can also include images in your HTML documents by using img tags! Here's how they work...

CSS and HTML

CSS, or Cascading Style Sheets, is a language used to describe the look and formatting of HTML documents. It's what you use to style your web pages with colors, fonts and layout.

CSS syntax can be confusing at first but once you get the hang of it there are many benefits:

  • It makes it easier for other people to edit your code because they only need to know HTML instead of both HTML and CSS.
  • You can change just one line in your CSS file (e.g., changing the color) instead of having to find every instance where that color was used on your page (which could be hundreds or even thousands).

HTML Forms

Forms are an essential part of web development, and HTML forms are no exception. Forms can be used to collect information from users, such as their names or email addresses. They can also be used to submit data back to your server, which will then process that information in some way.

Form elements include <input>, <select>, <textarea>, and more! Each of these elements has a different purpose:

  • The most common form element is <input>. It's used for things like entering text into a field, uploading files, selecting items from a dropdown list (like country), or even clicking buttons like "submit" or "reset". There are many different types of inputs available depending on what kind of data you want your users to enter into them (e-mail address? number?). You'll learn more about this later in this section!
  • Another important HTML5 element is <label>. Labels help clarify what type of input should go into each field--for example if someone was filling out their name on an order form but didn't know whether they were supposed write their full first name or just initials instead (or both). By adding labels above each box where users need fill out information like phone numbers or credit card numbers etc., we can ensure that they enter accurate info without having any confusion over what goes where!

HTML Responsive Design

Responsive Web Design is a technique that uses CSS3 media queries to change the layout of a website based on the size and orientation of the device being used. It's intended to make your website look good on all screen sizes, from small mobile devices to large desktop monitors.

Media Queries are used in conjunction with CSS3 media types (like screen or print) to target different styles for specific devices or situations. For example, if you want your page header text to be larger when viewed on mobile devices but smaller when viewed on desktops, you could use this code:

@media only screen and (min-width: 400px) { /* Styles go here */ }

HTML APIs

  • Web APIs
  • Web Storage APIs
  • Geolocation APIs

HTML5

HTML5 features and elements are the most important part of HTML5. They are used to create web pages, apps, and games.

The HTML5 semantic elements are used to define a structure for your content so that it's easier for people using assistive technology (AT) devices such as screen readers or braille displays to navigate around your site or application.

HTML5 APIs provide access to device capabilities such as geolocation, camera/microphone access etc., which can be used by developers in their web applications.

Debugging HTML

Debugging HTML is a process that involves identifying and fixing errors in your code. Errors can be as simple as typos, or they can be more complex issues with your markup that result in an error message when you try to view your site in a browser.

Common HTML Errors:

  • Missing closing tags
  • Invalid nesting of elements (elements need to be nested correctly)
  • Missing attributes on tags (elements need certain attributes)

Conclusion

In this article, we've learned about the basics of HTML and how it can be used to create web pages. You should now have a good understanding of what HTML is and how you can use it in your projects.

If you want to learn more about HTML, here are some resources that will help:

  • The W3C's Introduction to HTML5
  • A Beginner's Guide To Web Design by Rob Dodson (this book covers all aspects of web design)

For more content follow Vishvesh Pratap Singh

要查看或添加评论,请登录

社区洞察

其他会员也浏览了