|
Those are all fixable, but if you don't understand html it's not trivial to fix them.
In many cases Sigil will let you double click on the error in question and it will take you to the source of the error so you can fix it. The 'clear' example is most likely a line in your css that says 'clear' - you can simply delete the line and it will get rid of the error, but it may change your formatting in some areas of the book, you'd need to review it. Similar for hspace.
You might have more luck on the Sigil or epub forum for individual errors - Calibre won't be able to fix these automatically generally speaking, though you could try to do an epub to epub conversion to see if it could eliminate some of them.
|