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Overview
CSS specificity is an algorithm that determines which style declaration is ultimately applied to an element. If two or more CSS rules point to the same element, the declaration with the highest specificity will "win", and that style will be applied to the HTML element.
Formula
Here, we have specified a red color for < p > elements.<html> <head> <style>
p {color: red;}</style> </head> <body>
Formula
< p > Hello World!</p ></body> </html> Now, look at next example:
Here, we have added a class selector (named "test"), and specified a green color for this class.
The text will be green, because the class selector has higher specificity: <html> <head>
<style>.test {color: green;}
p {color: red;}</style> </head> <body> <p class="test">Hello World!</p> </body> </html> Now, look at next example:
Here, we have added the id selector (named "demo").
The text will be blue, because the id selector has higher specificity: <html> <head> <style>
#demo {color: blue;}.test {color: green;}
p {color: red;}</style> </head> <body> <p id="demo" class="test">Hello World!</p> </body> </html> Now, look at next example:
Formula
Here, we have added an inline style for the < p > element.The text will be pink, because the inline style has the highest specificity: <html> <head> <style>
#demo {color: blue;}.test {color: green;}
p {color: red;}</style> </head> <body> <p id="demo" class="test"
style="color: pink;">Hello World!</p></body> </html>