<!DOCTYPE html> <meta charset=utf-8> <title>Test for logical properties of fieldset in the UA stylesheet</title> <style> .v-rl { writing-mode: vertical-rl; } .ltr, .rtl, .v-rl { border: 1px solid blue; } fieldset { height: 100px; width: 100px; } .a { block-size: 40%; background: #eee; } .b { block-size: 60%; background: #ddd; } </style> <div class=ltr> <fieldset> <legend>Legend</legend> <div class=a></div> <div class=b></div> </fieldset> </div> <div class=rtl dir=rtl> <fieldset> <legend>Legend</legend> <div class=a></div> <div class=b></div> </fieldset> </div> <div class=v-rl> <fieldset> <legend>Legend</legend> <div class=a></div> <div class=b></div> </fieldset> </div>