This section has a 90deg split color background.

background: linear-gradient(90deg, #fff 50%, #113F53 50%)!important;

This section has a 45deg split color background.

background: linear-gradient(45deg, #fff 50%, #113F53 50%)!important;

This section has a 0deg split color background.

background: linear-gradient(0deg, #fff 50%, #113F53 50%)!important;