I mainly do the back end, front end not very proficient in, from so much code to find the difference between the two is really don't know how to find, have who can help me see their difference from the source, the bootstrap table useful, but after the fixed height header to is a flaw, all methods are tried on the net, or bad to use, but I see layui table headers are always together, this is why ah, is to automatically generate a new div, create a table in the div to put the newly generated header, why can a alignment, a how to also not neat, ask bosses on interpretation