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How to customize default styles?

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How can you change the default style for different HTML elements, I'm particularly interested in input elements like buttons, checkboxes, radios and selects (basically any form/input element with interactive buttons/widgets). Obviously, if the current site already provides a style for those elements the site style should override the default style.

How can you change the default style for different HTML elements, I'm particularly interested in input elements like buttons, checkboxes, radios and selects (basically any form/input element with interactive buttons/widgets). Obviously, if the current site already provides a style for those elements the site style should override the default style.

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an extention like Stylish? https://userstyles.org/

or Tampermonkey