feat: add base nav test

styl: just water

refactor: split tags styl

docs: update tasklist

feat: update tag-copy

feat: add tag-copy

refactor: use md render tag-note content

feat: add tag-note

feat: add tag-quat

feat: add tag-highlighter

feat: add tag-mark

refactor: var color

feat: image lazy load

refactor: code-expand-btn background suggestion by zhheo

refactor: box-shadow suggestion by zhheo