How to wrap the column header text?

[zaqxs123456]

How to change the height of the header and wrap the header text like this?

[van-huyen]

Hi @zaqxs123456

this is css control, not of revo-grid.

First, set row header height up to 2-3 line (50px):
revo-grid[theme='default'] revogr-header .header-rgRow {
height: 50px;
}

Second, add wrap text style:
white-space: pre-wrap;