which of the following css rule is invalid, CSS Basic, CSS

Question:Which of the following CSS rule is invalid?

A p{margin-left:40px;} 
B p {
 margin-left : 40px ;
} 
C p {
 margin - left : 40 px;
} 
D All are valid

/37

+ AnswerC

+ Explanation1. Whitespace between value and unit is invalid. Example: 40  %
2. Whitespace in left or right side of - (dash sign) at a CSS property is invalid. Example:  padding  -  left
3. Whitespace between (. or #) and selector name is invalid. Example: . box, # box

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Question:Which of the following CSS rule is invalid?

A p{margin-left:40px;}

B p { margin-left : 40px ; }

C p { margin - left : 40 px; }

D All are valid

C