Question

What is the purpose of<! DOCTYPE> declaration​

Answer 1

$\huge\underline\pink{αиsաҽя}$

ᴛʜᴇ ᴅᴏᴄᴛʏᴘᴇ ᴅᴇᴄʟᴀʀᴀᴛɪᴏɴ ɪꜱ ᴀɴ ɪɴꜱᴛʀᴜᴄᴛɪᴏɴ ᴛᴏ ᴛʜᴇ ᴡᴇʙ ʙʀᴏᴡꜱᴇʀ ᴀʙᴏᴜᴛ ᴡʜᴀᴛ ᴠᴇʀꜱɪᴏɴ ᴏғ ʜᴛᴍʟ ᴛʜᴇ ᴘᴀɢᴇ ɪꜱ ᴡʀɪᴛᴛᴇɴ ɪɴ. ᴛʜɪꜱ ᴇɴꜱᴜʀᴇꜱ ᴛʜᴀᴛ ᴛʜᴇ ᴡᴇʙ ᴘᴀɢᴇ ɪꜱ ᴘᴀʀꜱᴇᴅ ᴛʜᴇ ꜱᴀᴍᴇ ᴡᴀʏ ʙʏ ᴅɪғғᴇʀᴇɴᴛ ᴡᴇʙ ʙʀᴏᴡꜱᴇʀꜱ. ɪɴ ʜᴛᴍʟ 4.01, ᴛʜᴇ ᴅᴏᴄᴛʏᴘᴇ ᴅᴇᴄʟᴀʀᴀᴛɪᴏɴ ʀᴇғᴇʀꜱ ᴛᴏ ᴀ ᴅᴏᴄᴜᴍᴇɴᴛ ᴛʏᴘᴇ ᴅᴇғɪɴɪᴛɪᴏɴ (ᴅᴛᴅ).

Answer 2

$\huge\boxed{\sf\orange{αnswєr }}$

ᴛʜᴇ ᴅᴏᴄᴛʏᴘᴇ ᴅᴇᴄʟᴀʀᴀᴛɪᴏɴ ɪꜱ ᴀɴ ɪɴꜱᴛʀᴜᴄᴛɪᴏɴ ᴛᴏ ᴛʜᴇ ᴡᴇʙ ʙʀᴏᴡꜱᴇʀ ᴀʙᴏᴜᴛ ᴡʜᴀᴛ ᴠᴇʀꜱɪᴏɴ ᴏғ ʜᴛᴍʟ ᴛʜᴇ ᴘᴀɢᴇ ɪꜱ ᴡʀɪᴛᴛᴇɴ ɪɴ. ᴛʜɪꜱ ᴇɴꜱᴜʀᴇꜱ ᴛʜᴀᴛ ᴛʜᴇ ᴡᴇʙ ᴘᴀɢᴇ ɪꜱ ᴘᴀʀꜱᴇᴅ ᴛʜᴇ ꜱᴀᴍᴇ ᴡᴀʏ ʙʏ ᴅɪғғᴇʀᴇɴᴛ ᴡᴇʙ ʙʀᴏᴡꜱᴇʀꜱ. ɪɴ ʜᴛᴍʟ 4.01, ᴛʜᴇ ᴅᴏᴄᴛʏᴘᴇ ᴅᴇᴄʟᴀʀᴀᴛɪᴏɴ ʀᴇғᴇʀꜱ ᴛᴏ ᴀ ᴅᴏᴄᴜᴍᴇɴᴛ ᴛʏᴘᴇ ᴅᴇғɪɴɪᴛɪᴏɴ (ᴅᴛᴅ).