How to change the header height?

Initially, the default header looks like on the following image:

If you want to reduce or enlarge it, you can add the following CSS code to Customize > Additional CSS:

.primary-menu-menu > li {padding: 25px 10px; }.nav-add {    padding-bottom: 10px;}.header .logo {    padding-bottom: 10px;}.header .header-content-wrapper {    padding-top: 10px;}

There can be adjusted any padding value according to your needs.