1317351.html (454B)
1 <!DOCTYPE HTML> 2 <html><head> 3 <meta charset="utf-8"> 4 <title></title> 5 <style type="text/css"> 6 7 html { padding: 100px } 8 9 input,button { 10 width: auto; 11 min-width: 50px; 12 writing-mode: vertical-rl; 13 } 14 15 mask { 16 position: absolute; 17 top: 98px; left: 98px; 18 width: 300px; 19 height: 200px; 20 background: black; 21 } 22 </style> 23 </head> 24 <body> 25 <input type="color"> 26 <button><div style="width:100%; height:100%"></div></button> 27 28 <mask></mask> 29 </body> 30 </html>