Ex. I used a short code [dropcap] I know you're better than me[/dropcap] When I updated the page and view the website same is showing on page [dropcap] I know you're better than me[/dropcap]
Without knowing further details of your specific installation:
- Make sure you are actually previewing live on the web in a browser to see if the short-code actually is working.
- Make sure you have spelled the short-code correctly, and have the correct syntax. (See theme's documentation.)
- Contact the theme developer's support forum or directly for answers. Likely others have the same issue or question. If #1 or #2 or #3 above are not the issue, then the developer or other user in a forum may be able to shed some light on the subject.
Usually, a dropcap is reserved for a single character at the start of a sentence. I suspect that by putting a complete sentence into the dropcap shortcode 'output' area, you are confusing the code, and it may be the apostrophe (quote) within your sentence that is breaking it. Please try it again with a single letter ('I') and then enter the rest of your sentence after the dropcap shortcode in the text edit area. If this doesn't work, try adding a dropcap plugin (just search for 'wordpress dropcap plugin' and install one of those).