* if you want to use these info, use this freely. copy and paste and modify.
* but this is not enogh.
* we can't use "style" attribute, but maybe you can use "class" attribute in some tags.

we currently can use these html tags in journal:

○ <div> : OK
○ <p> : OK
○ <span> : OK
× <font> : NG
○ <br> : OK
○ <hr> : OK
○ <big> : OK
○ <small> : OK
○ <b> : OK
○ <i> : OK
○ <em> : OK
○ <strong> : OK
○ <tt> : OK
○ <sup> : OK^OK
○ <sub> : OK_OK
○ <del> : OK
○ <ins> : OK
○ <cite> : OK
○ <code> : OK
○ <kbd> : OK
○ <var> : OK
○ <samp> : OK
× <abbr> : NG
○ <acronym> : OK
○ <h1> : OK
○ <h2> : OK
○ <h3> : OK
○ <h4> : OK
○ <h5> : OK
○ <h6> : OK
○ <blockquote> : OK
× <q> : NG
○ <pre> : OK
× <ruby><p><rt> : NG
○ <ul><li> : OK
○ <ol><li> : OK
△ <dl><dt><dd> : <dl>:NG, <dt><dd>:OK
○ <img> : OK
○ <a href="..."> : OK
× <a href="..." target="_blank"> : NG

× <table><tr><td> : NG

× <span style="...."> NG