First Of Class in CSS

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First Of Class in CSS

Author：JIYIK Last Updated：2025/04/19 Views：

CSS :first-of-typeselectors are used to select the first element of its type within a group of elements. For example, if you have a group of paragraphs, :first-of-typethe selector will select the first paragraph in the group.

This selector is often used in conjunction with other selectors, such as the child selector, to select specific elements. For example, the following code will select the first paragraph in the first div element on the page:

div:first-child > p:first-of-type {
  /* CSS code */
}

What is CSS First of Class

CSS selectors select the elements you want to style.

The most basic selector is the element selector, which is used to select elements by their tag name. For example, the element selector p will select all

element.

Class selectors are used to select elements by class name. For example, the class selector .example will select all elements with the class example.

The id selector is used to select an element by its id. For example, the id selector #example will select the element with id = "example".

To select the first part using the class example, you can use the CSS selector example: first.

The first element with class selector is used to select the first element with the specified class. For example, if you want to <p>style the first element with class test, you can use the class selector first element like this.

p.test:first-child {

First element with a class selector is beneficial when you want to style the first element with a specific class differently from other elements with that class. This is often used to style the first element in a list differently from other list items.

Sample code:

<head>
   <style>
      p:first-child {
      color: lime;
      background-color: black;
      padding: 5px;
      }
   </style>
</head>
<body>
   <div>
      <p>This text is selected!</p>
      <p>This text isn't selected.</p>
   </div>
   <div>
      <h2>This text isn't selected: it's not a `p`.</h2>
      <p>This text isn't selected.</p>
   </div>
</body>

Implementing first-class CSS

You can achieve first-class CSS in a few different ways.

The most common approach is to simply place the CSS code before any other code in the HTML document. This will ensure that the CSS code is parsed first and will take precedence over any other code.

Another way to implement CSS first is to use an external CSS file.

When using CSS, the first thing you need to do is select the element you want to style. You can use the element's ID, class, or tag.

After selecting an element, you can style it using CSS properties. For example, you can change the color of an element using the color property or change the size of an element's font using the font-size property.

Sample code:

<html>
    <head>
        <style>
            p:first-of-type {
                background: red;
            }
        </style>
    </head>
    <body>
        <p>The first paragraph</p>
        <p>The second paragraph</p>
        <p>The third paragraph</p>
        <p>The fourth paragraph</p>
    </body>
</html>

Summarize

There are several ways to select the first element with a class, but using the CSS selector first-child is the most common. This selector will select the first element of any type that is a child of the element you are selecting.

If you have a list of items and want to select the first item with class items, you can use ul > li:first-childCSS selectors. So, you can get complete information about CSS in css tutorial .

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