As i do some html markup thru php output:
echo '<h2>Events Calendar</h2><table border="2" width="100%"><th>';
...
a weird slach appears in this way (under Events Calendar and above the html table markup):
As i look in debugger i find no hint where it's from... The table markup is ok, all tags are paired. What's the cause might be?
Most likely it is outside your proper table markup, like /<tr>
Anything between the tags in a table is normally rendered before the table.