/* There is now a `gap` CSS property
** This works for <flex>, <grid>, and <multicolumn> layouts
** #box{} would lay out all it's children with 10px spacing between
** different rows and 20px betwen different columns
*/
#box {
display: flex;
flex-wrap: wrap;
gap: 10px 20px; /* row-gap [column-gap]*/
}
/* Supported by most modern browesers, Safari excluded. */