Applying Border-Radius to Header Cells

Problem:

How do I apply border-radius in the second header cell of the grid chart and remove the line between the header cells?

Solution:
To apply border-radius in the second header, use  .th_1 attribute which defines the style for the header cells on column 2 as we've done in this demo. You should read here for more details on the styling attributes. To remove the line between the header cells, apply "border-right": "0px solid #fff", and "border-left": "0px solid #fff", on .th as you can see in the attached screenshot. Please use the same demo for referenced