Fix details rustdoc toggle for blanket impl
Fix details rustdoc toggle for blanket impl

In the meantime, allow all of the details to have the same top.
graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,graydon/rust,graydon/rust,graydon/rust