{{{1}}}
Usage
First suggested by User:Kwamikagami by this edit, this template creates a double underline/underscore beneath a string, instead of a single one. It may be used in cases where a single underline is confusing, such as when underlining CJK characters.
A second parameter can be added to specify the color (in name or in hex code, defaults to #000), for example,
<span style="color:red;">Hello {{double underline|world}}!</span>
yields whereasHello world!
<span style="color:red;">Hello {{double underline|world|red}}!</span>
yields the better-looking Hello world!
For strings within certain {{lang}} templates (such as zh), strings within <big> tags or <code> tags, and some others, this may show up as a thick underline instead of a double underline (depending on your browser settings):
{{lang|zh|好好儿学习，{{double underline|天天}}向上！}}
yields 好好儿学习，天天向上！
<big>Hello {{double underline|world}}!</big>
yields Hello world!