flexbox-dyn-changeFrameWidth-2-iframe.html (468B)
1 <html> 2 <head> 3 <style> 4 body { 5 margin: 0; 6 } 7 #container { 8 display: flex; 9 flex-direction: column; 10 border: 10px solid lime; 11 width: 80px; 12 height: 80px; 13 background-color: red; 14 } 15 #item { 16 background-color: lime; 17 width: 80px; 18 height: 80px; 19 } 20 </style> 21 </head> 22 <body> 23 <div id="container"> 24 <div id="item"></div> 25 </div> 26 </body> 27 </html>