How to define variable with CSS value from HTML tag? [closed]

Tags: javascript,css

Problem :

How to change value of I have the font HTML element with inline style font-size: 20px; how do i change size of this using JS? Getting this by will give "20px" not just 20. So how can I get rid of "px"

Solution :

You can use parseInt, it will remove the px

var rozmiar = parseInt(;

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