CSS Reference

Quick Reference

This is a quick reference list of CSS pseudo-elements used to select HTML elements for styling.

  • CSS – ::after Selector
    The ::after pseudo-element inserts something after the content of a selected element.
  • CSS – ::before Selector
    The ::before pseudo-element inserts something before the content of a selected element.
  • CSS – ::first-letter Selector
    The ::first-letter selector is used to select the first letter of a specified, block-level element such as a paragraph or heading.
  • CSS – ::first-line Selector
    The ::first-line selector is used to select the first line of text of a specified, block-level element such as a paragraph or heading.
  • CSS – ::marker Selector
    The ::marker selector selects the marker of a list item (the bullet in an unordered list or number in an ordered list).
  • CSS – ::placeholder Selector
    The ::placeholder selector selects form inputs with placeholder text.
  • CSS – ::selection Selector
    The ::selection selector matches the portion of an element that is selected by a user, and is most often used to set the background color of selected text.

CSS Notes:


We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.