Regex Editor & Tester

Matches HTML content starting at the closing </head> tag, capturing everything (including newlines) up to an href attribute pointing to 'https://TBD/', continuing through to a '>Buy Now' element. Uses the [\s\S]* technique to match any character across multiple lines, which is common when DOTALL mode isn't enabled. Typically used in substitution/replacement operations to remove or rewrite large blocks of HTML. Note that escaped forward slashes are unnecessary in Python flavor, and greedy quantifiers may over-capture if multiple 'Buy Now' links exist.