display : block
display : inline
https://www.daleseo.com/css-display-inline-block/
display : flex
display : flex (style)
flex-direction: row;
flex-direction: column;
flex-direction: row-reverse;
flex-direction: column-reverse;
개발자 지망생
https://www.daleseo.com/css-display-inline-block/
flex-direction: row;
flex-direction: column;
flex-direction: row-reverse;
flex-direction: column-reverse;