HTMLタグattribute_html/css_WEB-ITnose

<!DOCTYPE <strong>html</strong>><<strong>html </strong><strong>lang=</strong><strong>"en"</strong>><<strong>head</strong>>    <<strong>meta </strong><strong>charset=</strong><strong>"UTF-8"</strong>>    <<strong>title</strong>>HTML5学习笔记</<strong>title</strong>></<strong>head</strong>><<strong>body </strong><strong>bgcolor=</strong><strong>"#90ee90"</strong>><<strong>b</strong>>加粗</<strong>b</strong>><<strong>br</strong>/><<strong>em</strong>>着重文字</<strong>em</strong>><<strong>br</strong>/><<strong>i</strong>>斜体字</<strong>i</strong>><<strong>br</strong>/><<strong>small</strong>>小字体</<strong>small</strong>><<strong>br</strong>/><<strong>strong</strong>>加重语气字</<strong>strong</strong>><<strong>br</strong>/>接下来是<<strong>sub</strong>>下标</<strong>sub</strong>><<strong>br</strong>/>然后是<<strong>sup</strong>>上标</<strong>sup</strong>><<strong>br</strong>/><<strong>ins</strong>>下划线</<strong>ins</strong>><<strong>br</strong>/><<strong>del</strong>>删除线</<strong>del</strong>><<strong>br</strong>/></<strong>body</strong>></<strong>html</strong>>