Total width = left margin + left border + left padding + width + right padding + right border + right margin
Total width = 15 + 1 + 10 + 300 + 10 + 1 + 15 = 352px Total height = 15 + 1 + 10 + 200 + 10 + 1 + 15 = 252px
.box { width: 300px; height: 200px; padding: 10px; /* padding: 10px 15px || padding: 10px 1px 18px 4px || padding: 10px 0 15px */ border: 1px solid #000; margin: 15px; }
By polaszk