[x/go.dev] fix style of lists with header
[x/go.dev] fix style of lists with header

Change-Id: I2d4793f4b292eab8d5cf6ffb04826eeef4f80184

X-GoDev-Commit: 61b2b81543e3ecd305ab408e167f9963abe9baff

golang/website,golang/website,golang/website,golang/website,golang/website,golang/website,golang/website