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Using CSS Inline Style with console.log

Sam Xiao's Avatar 2021-11-27

Not only just showing debugging messages on the console of DevTools, but we can also use CSS to change their style.

Version

ECMAScript 2015

Inline Style

color000

Text in the console is red and much larger.

<script setup>
let s = 'Hello World'
console.log (`%c ${s}`, 'color: red; font-size: 20px')
</script>
  • Add %c before the String

  • Pass CSS inline style to the 2nd argument of console.log to specify font color and font size. It improves the readability of debugging messages

Conclusion

  • We can change the style of debugging messages by applying CSS inline style

Reference

MDN, console.log