While an overall block is given to class selector, ID selector prefers only a single element differing from other elements.
The id selector uses the id attribute of an HTML element to select a specific element. To select an element with a specific id, write a hash (#) character, followed by the id of the element.
what is gamer Id
no
The character # is entered at the beginning.
They are the same thing.
A
An ID is used to define the style properties of a specific thing whereas a class is used to define something you may use multiple times. For instance, if you are going to make a loginbox you will use an id because you will only have one identical loginbox on the page whereas if you wanted every quote to be given the same style you would use a class, this would mean all elements with class=quote (after you define it in the CSS) would always style quotes to your needs. In short, you could use either as they have pretty much the same outcome, but organised CSS is good CSS so you are better off using classes and ID's as i have defined them above.
Period which specifies to a class using (.) or dot operator Where as hash or # specifies to id of a particular attribute of HTML tags
centipede eats woodlouse
An identifier for a host. A host ID uniquely identifies a host within an address family on a network but does not identify the network. A host ID is not necessarily sufficient to establish communications with a host. foe example:- In a class C IP address say, 192.52.56.8 the first 3 octets denote the net ID while the last octet shows the host ID.
The 552 is still made.
An ID is good for page sections as you can only use an ID once per page. Examples are #header, #menubar, #footer, etc. Classes can be used multiple times throughout a page. Examples are .faqquestion, .faqanswer, .callout, etc.