We can select a text within an html or xml tag by using visual selection v and text object it .
ESCvit from anywhere within the html or xml sectiontagAll other text objects can also be used to operate on the text inside the tag
cit - delete text inside the tag and place in insert modedit - delete text inside the tag and remain in normal modecat - delete around tag and place in insert modedat - delete text around the tag and remain in normal mode