<input type="email"> is used for entering a number.
<input type="week"> defines the control for entering a week.
<input type="color"> defines a color picker.
<input type="URL"> defines a field for entering a URL.
<input type="image"> defines an image as a submit button.
<input type="datetime-local"> defines a date picker with the year, month, day and time.
<input type="month"> defines a month and year control in format as YYYY-MM.
<input type="search"> defines a text field for entering a search string.
Multiple attribute specifies that the user is allowed to enter more than one value in the <input> element.
<meta> tag is an empty (singular tag).
<meta charset="UTF-8"> is for Indian characters.
<meta charset="Big5"> is for Chinese characters.
<meta http-equiv ="refresh" content="5">, here the page will get refresh after every 5 seconds.
<meta http-equiv="expires"> is used for expiring a page session at specified date and time.
Internal CSS is written inside <style> tag within head section.
External CSS uses <link> tag.
<UL> tag defines a numbered list.
To define a definition list <DP> tag is used.
Items can be created in definition list with <dt> and <dd> tags
HTML features includes native audio and video support without the need for flash.
The <video> tag is used to embed video in web page.
<area> tag defines specifies clickable regions.
The <iframe> tag creates an inline frame.