(Gecko,Opera限定)シグマをCSSで再現します。
<msum><mss>Σ</mss><msno>[</msno><msfir>k=m</msfir><msno>:</msno><msend>n<msend><msno>]</msno></msum>k
msum{ display: inline-table; vertical-align:-1em; } msum * { line-height: 50%; text-indent: 0px; } msno{ display:none; } msfir{ display: table-footer-group; text-align:center; font-size: 70%; line-height: 170%; } mss{ display: table-cell; text-align:center; } msend{ display: table-header-group; text-align:center; font-size: 80%; line-height: 180%; }
msum{ display: inline-table; vertical-align:-0.8em; } msum * { line-height: 80%; text-indent: 0px; } msno{ display:none; } msfir{ display: table-footer-group; text-align:center; font-size: 70%; line-height: 100%; } mss{ display: table-cell; text-align:center; } msend{ display: table-header-group; text-align:center; font-size: 80%; line-height: 100%; }