CSS(Cascading Style Sheet) Syntax - How to write CSS syntax
CSS (Cascading Style Sheets) is a language used to describe
the style and layout of HTML (Hypertext Markup Language) documents. The syntax
of CSS consists of a series of rules that apply styles to HTML elements.
Here is a complete description of the CSS syntax:
Selector: The selector is the HTML element that you
want to style. It can be a tag name, a class, or an ID. For example, the
selector h1 selects all h1 tags in the HTML document.
Property: A property is a style attribute that you
want to apply to the HTML element. For example, the property color sets the
text color of the element.
Value: The value is the specific setting that you
want to apply to the property. For example, the value red sets the text color
to red.
Declaration Block: A declaration block is a
collection of one or more property-value pairs enclosed in curly braces { }.
For example, the following declaration block sets the font size and text color
for all h1 tags:
h1 {
font-size: 24px;
color: blue;
}
Rule: A rule is made up of a selector and a
declaration block. For example, the following rule selects all h1 tags and sets
the font size and text color:
h1 {
font-size: 24px;
color: blue;
}
Comments: Comments are notes that you can include in
your CSS code to explain what you are doing. They start with /* and end with
*/. For example:
/* This is a comment */
h1 {
font-size: 24px;
color: blue;
}
Multiple Selectors: You can apply styles to multiple
HTML elements by separating the selectors with a comma. For example:
h1, h2, h3 {
color: green;
}
This rule sets the text color to green for all h1, h2, and
h3 tags.
Inheritance: CSS properties can be inherited from parent elements to child elements. This means that if you set a property on a parent element, it will be inherited by its child elements unless the child elements have their own style for that property.
Cascading: CSS rules can overlap, and when they do,
the browser determines which rule to apply based on a set of rules called the
"cascading order." The cascading order is based on specificity,
importance, and source order.
Units: CSS values can be specified in various units,
such as pixels (px), ems (em), percentages (%), and more. These units are used
to specify measurements for things like font sizes, padding, and margins.
Pseudo-Classes: Pseudo-classes are selectors that
match elements based on their state or position. For example, the :hover
pseudo-class matches an element when the mouse pointer is over it.
Pseudo-classes are preceded by a colon (:).
Pseudo-Elements: Pseudo-elements are similar to
pseudo-classes, but they allow you to style specific parts of an element, such
as the first letter or the first line of text. Pseudo-elements are preceded by
two colons (::).
Overall, CSS syntax is relatively straightforward and consists of a series of rules that apply styles to HTML elements. By understanding the basic syntax of CSS, you can create stylish and visually appealing web pages