Skip to main content

WDS4 - HTML Attributes and Some Important Rules

In the last article we learned:
  • HTML Headings
  • Paragraphs
  • Links
  • Images
Now we are 3 rules that we should always follow:
  1. Although HTML tags are not case sensitive which means you can use either <p> or <P> for paragraph tags, you should always use lowercase tags as many standards use same in their documentation and you will form a good habit.
  2. You should never forget end tag in HTML. In some cases, the document will be displayed perfectly without using end tag but consider it as just a coincidence. In many cases, it will produce wrong or undesirable output.
  3. In last class when we learned about attributes which consist of name and value pair, always use them as name="value". Although quotes(") are not necessary, it is a good habit to use them.You can use both single or double quotes but double quotes are preferable. You have to use single quotes when value itself contains double quotes.
Two important notes:
  1. You can use HTML tags in nested form(in fact you are already using it). In all the examples we are writing all our document inside <html> and </html> tags that means our all other tags are nested in between this tags. Similarly, you can use heading tag inside paragraph tag to create heading inside the paragraph.  
  2. There are some elements which do not require any content. HTML elements with no content are called empty elements.<br> is an empty element without a closing tag (the <br> tag defines a line break).Empty elements can be "closed" in the opening tag like this: <br />. HTML5 does not require you to close empty elements.

HTML Attributes

In last tutorial(WDS3), while learning HTML links and image tags we studied a new concept called attributes. Now let's study them in detail:
  • Attributes provide more control/ information about elements.
  • Attributes are always specified in the starting tag of tags pair.
  • For name and value pair of attributes, attributes are written as name="value".
Now let's see some attributes and their uses: 
  • href - HTML links are defined with the <a> tag. The link address is specified in the href attribute. We have done an example in WDS3.
  • src - Used in <img> tag for displaying image. It represents the source of an image.
  • width and height - To represent width and height of an image.
  • alt - Represents alternative text used when an image is not displayed.
  • title -  This attribute is used in paragraph element inside <p> tag. The value of the title attribute will be displayed as a tooltip when you mouse over the paragraph.  
That's all for this article. In the next part, we will learn about attributes used in HTML.Comment on how you think this article is, what improvements should I do and for any doubts. Share with your friends and keep coding.

Comments

Popular posts from this blog

Python Project - 1 (Password Locker)

Hello reader, this is my first post on this blog. I created this blog for various purposes including First and most importantly improve my coding Help others to learn various concepts in programming  To complete my hobby of blogging So, I am starting various series simultaneously, hope I will able to continue them. In this " Python Project " series, I will create simple python projects and will give step by step procedure to do that. I think you should first try to complete code yourself, then if you get stuck anywhere, feel free to check steps, refer complete code or comment for more help. Let's begin... Idea and Need: You probably have accounts on many different websites. It is a bad habit to have the same password and it is difficult to remember all passwords. So it is a good idea to use "Password Manager Software". So why not create it yourself? So let's see what steps you should follow... Steps: We have to create a menu which has the

WDS85 - Animate the CSS(Part 3)

In the last two articles, we learned about animations in CSS and various ways to customize them with the help of iterations and animation delays. Now in today's article, we are going to learn more about them so that to customize them even more. Let's begin... Reverse Directions and Alternate Cycles The animation-direction property in CSS decides whether we want to play animation forward, backward or in alternate cycles. Following values are possible: normal - This is the default. Animation plays as normal(forward). reverse - The animation plays in reverse direction that is backward. alternate - The animation first plays forward and then backward. alternate-reverse - The animation first plays backward and then forward. Speed Curve of Animation Just like we used various ways to customize transitions in CSS some articles before, same functions can be used to change the speed of the animation. The animation-timing-function property specifies the speed curve o

WDS83 - Animate the CSS

In the last two articles, we learned about CSS transitions and created some pretty cool elements with transitions and transformations. Now in today's class, we are going to learn animations in CSS which creates animations without the use of javascript or flash. CSS Animations A CSS animation lets us change an element's style from one to another. We can change as many properties as we want. To use this CSS animations, we have to first specify some keyframe rules which include how and which properties are we changing. The @keyframes Rule When we specify CSS styles inside the  @keyframes rule, the animations will gradually change from current style to new style at certain times. To get these working, we must bind animations to an element. Let's understand more by an example... @keyframes myAnimation { from { background-color : blue ;} to { background-color : red ;} } div { width : 100px ; height : 100px ; background-color : b