title: How do i use 1 <span> tag to bold multiple words? for example in the text below
body: <p><a href="https://i.stack.imgur.com/UIWXU.png" rel="nofollow noreferrer">HTML</a>
  How do I use 1  tag to bold multiple words? for example in the text below Bold Mon-Fri but not the times when I put multiple  tags I get a duplicate id Day error, thank you for the help!
  Im looking for something more of the line of, in my code i have Mon 8AM-8PM Tue 8AM-8PM Wed8AM-8PM Thu8AM-8PM Fri8AM-8PM, is there a way i could select only the abbreviations for the days of the week and bold them? when i try to use multiple  tags i get an ID Day Duplicate error!</p>