Answers for "padding means"

padding css

padding:10px 5px 15px 20px;
means
top padding is 10px
right padding is 5px
bottom padding is 15px
left padding is 20px

padding

Margin
			_____________________________________________________________________
			|   		 					Border								|	
			|			 ____________________________________________			|
  	  		|			 |					Padding 				|			|
	        |   		 |				_________________			|			|
	Margin	|	Border	 |	Padding		|	Content		|	Padding	| Border	|	Margin	
    	    |    		 |				_________________			|			|
   		    |   		 |					Padding					|			|
     		|    		 |__________________________________________|			|
        	|    		 					Border								|
        	|___________________________________________________________________|
             								Margin							
																							1

padding left

.yourClass {
  padding-left: 50px; // or
  padding-left: 1%; // to scale it in relation to its parent
}

padding

Padding is how much an element is away from itself — 
how much distance an element wants to keep with the elements inside it.