Assertion:
The DIR="RTL" attribute right aligns the content of INPUT elements WITHIN the form field, not the element itself relative to the viewport as it does for other elements.
Plain Input Type=Submit field, no value:
filler text
filler text
Input Type=Submit field, no value, Dir=rtl:
filler text
filler text
Plain Input Type=Submit field, value="This is a longer submit value example":
filler text
filler text
Plain Input Type=Submit field, value="This is a longer submit value example", Dir=rtl:
filler text
filler text