Frame A should always have scrollbars:
The <frame> tag is not supported in HTML5.
The scrolling attribute specifies whether or not to display scrollbars in a <frame>.
By default, scrollbars appear in a <frame> if the content is larger than the <frame>.
|scrolling||Not supported||Not supported||Yes||Not supported||Not supported|
Note: Internet Explorer 8 (and earlier) and Opera 12 (and earlier) supports the scrolling attribute. However, support was removed in IE9 and Opera 15.
|auto||Scrollbars appear if needed (this is default)|
|yes||Scrollbars are always shown (even if they are not needed)|
|no||Scrollbars are never shown (even if they are needed)|