My crossword puzzle!

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Across
  1. 2. a browser used to surf multiple websites
  2. 6. strict teacher who doesn't let me open my mouth
  3. 7. shifts the writing or item to the middle
  4. 8. to group content
  5. 10. used to demonstrate a list or group of contents
  6. 12. tag used to make the letters of your writing thicker
Down
  1. 1. a page used to access information
  2. 3. tag used to insert a large group of text
  3. 4. the main writing that is the label or name of your webpage
  4. 5. the top portion of your webpage
  5. 7. a website used to practice html and css
  6. 9. is the standard markup language used to code websites
  7. 11. used to move to a new line