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1 <!DOCTYPE html> |
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2 <!-- fieldset with invalid barred for constraint validation element --> |
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3 <html> |
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4 <head> |
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5 <style> |
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6 fieldset:valid { display: none ;} |
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7 </style> |
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8 <script> |
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9 function onloadHandler() |
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10 { |
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11 document.getElementById("fieldset").appendChild(document.getElementById('i')); |
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12 document.documentElement.className = ''; |
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13 } |
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14 </script> |
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15 </head> |
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16 <body onload="onloadHandler();"> |
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17 <input required readonly id="i"> |
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18 <fieldset id="fieldset"> |
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19 </fieldset> |
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20 </body> |
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21 </html> |
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22 |