ID selector and class selector

Class selector is used when we want to apply style on many items that contain respective class
but ID selector is used for unique elements.

<p class="newclass">  </p>

<p class="newclass">  </p>

<p id="pid">    </p>


in css file

#pid{

/*we use # sign for ID selector and it will e unique for a element  */

}

.newclass{
/* (dot) . sign is used for class and we can assign a class to many elements. */

}