Create CSSselectors (#240)

Author: BhoomiAgarwal25

Types of CSS/CSSselectors

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+A CSS selector selects the HTML element(s) you want to style.
+
+CSS Selectors
+CSS selectors are used to "find" (or select) the HTML elements you want to style.
+
+We can divide CSS selectors into five categories:
+
+Simple selectors (select elements based on name, id, class)
+Combinator selectors (select elements based on a specific relationship between them)
+Pseudo-class selectors (select elements based on a certain state)
+Pseudo-elements selectors (select and style a part of an element)
+Attribute selectors (select elements based on an attribute or attribute value)
+This page will explain the most basic CSS selectors.
+
+The CSS element Selector
+The element selector selects HTML elements based on the element name.
+
+Example
+Here, all <p> elements on the page will be center-aligned, with a red text color: 
+
+p {
+  text-align: center;
+  color: red;
+}
+The CSS id Selector
+The id selector uses the id attribute of an HTML element to select a specific element.
+
+The id of an element is unique within a page, so the id selector is used to select one unique element!
+
+To select an element with a specific id, write a hash (#) character, followed by the id of the element.
+
+Example
+The CSS rule below will be applied to the HTML element with id="para1": 
+
+#para1 {
+  text-align: center;
+  color: red;
+}
+Note: An id name cannot start with a number!
+
+ADVERTISEMENT
+
+The CSS class Selector
+The class selector selects HTML elements with a specific class attribute.
+
+To select elements with a specific class, write a period (.) character, followed by the class name.
+
+Example
+In this example all HTML elements with class="center" will be red and center-aligned: 
+
+.center {
+  text-align: center;
+  color: red;
+}
+You can also specify that only specific HTML elements should be affected by a class.
+
+Example
+In this example only <p> elements with class="center" will be red and center-aligned: 
+
+p.center {
+  text-align: center;
+  color: red;
+}
+HTML elements can also refer to more than one class.
+
+Example
+In this example the <p> element will be styled according to class="center" and to class="large": 
+
+<p class="center large">This paragraph refers to two classes.</p>
+Note: A class name cannot start with a number!
+
+The CSS Universal Selector
+The universal selector (*) selects all HTML elements on the page.
+
+Example
+The CSS rule below will affect every HTML element on the page: 
+
+* {
+  text-align: center;
+  color: blue;
+}
+The CSS Grouping Selector
+The grouping selector selects all the HTML elements with the same style definitions.
+
+Look at the following CSS code (the h1, h2, and p elements have the same style definitions):
+
+h1 {
+  text-align: center;
+  color: red;
+}
+
+h2 {
+  text-align: center;
+  color: red;
+}
+
+p {
+  text-align: center;
+  color: red;
+}
+It will be better to group the selectors, to minimize the code.
+
+To group selectors, separate each selector with a comma.
+
+Example
+In this example we have grouped the selectors from the code above: 
+
+h1, h2, p {
+  text-align: center;
+  color: red;
+}
+Test Yourself With Exercises
+Exercise:
+Set the color of all <p> elements to red.
+
+<style>
+ {
+  
+ red;}