i dont underatand what the diffrent between margin-top and top

Question

if i put top:10px or margin-top 10px the result is same.
p{
position:relative ;
padding:20px;
max-width:40px;
border-style:solid ;
top:10px;
}

Answer 1

top is only for relative and absolute position. it moves all block without any effects on parent or changing size of block.
margin works everywhere and may change size of block depending on location of other elements.
to some up, they will work differently if there are a lot of blocks on the page

Answer 2

Что это?