Removing the thin white line under the header

[Rahul_dhiman]

Hello @RheaKalo
Go to online store ---------> themes --------------> actions ------> edit code-------> theme.scss.css
add this code at the end of the file.

.border-bottom {
border-bottom: 0px !important;
}

result

If this was helpful, hit the like button and accept the solution.
Thanks