No-Library (pure JS), HTML, CSS, JavaScript
<td width="" border="" cellspacing="" cellpadding="" bgcolor="" rowspan="" colspan=""></td>
dl: definition list dt: definition title dd: definition data
box-sizing: content-box; (기본값) box-sizing:border-box;
none (기본값) 수평 수직 블러 색상; 수평 수직 블러 번짐 색상;
border-radius: 10px; border-radius: 5%;