HTML格式化工具
HTML美化、压缩、提取文本
结构：html, head, body, header, footer, main, section, article, aside, nav, div
文本：h1-h6, p, span, a, strong, em, br, hr, ul, ol, li, blockquote, pre, code
表单：form, input, textarea, select, option, button, label, fieldset, legend
媒体：img, video, audio, source, canvas, svg, iframe
表格：table, thead, tbody, tr, th, td, caption, colgroup