Line Space Problem

[rentainhe]

Problem

Still meet the space problems mentioned in:

• Line space between items in toctree list too wide #1029
• Fix spacing issue with html4 output #1202

I have no idea how to fix it~

Environment Info

• Python Version: 3.7.10
• Sphinx Version: 4.4.0
• Sphinx-rtd-theme Version: 1.0.0
• Docutils Version: 0.17.1