The cell in HTML is not able to change the size through the mouse, if you want to implement the table like Word, you need to write a function yourself. It can be implemented by two ways, one is to write the web page script directly, and the other is to write the HTC extension Table behavior. I use the HTC extended Table behavior method to implement it, the benefit is that the package and references of the script code are very convenient.
Below is an HTC that implements basic functions:
SplitCellTable.htc:
