In musicalsymbols, the lines through these notes are "---" , and the staves are "=". Look for gaps, unequal linewidths, and misalignments. (If you find none, please let us know what browser you are using.)
 -h--  -ú--  -H--==41px    _h
 -h--  -ú--  -H--==57px    _h
 -h--  -ú--  -H--==153px    _h

The first three notes with lines are "-<s>h</s>--", "-<s>ú</s>--" and "-<s>H</s>--". The fourth one uses "_", shifted to the west, to make a ledger-line, but the shifts, measured in em's, are different for the different font-sizes - ugh!. Notes may someday be replaced by "<img - - - >", but for now the program is to use the glyphs in musicalsymbols instead of images, and to draw all the horizontal, vertical, and slanted lines with "<img - - - >".