Divi Vertical Centre Section, Row or Module

wpdvc.css

/* Vertically center rows in sections and modules in columns. Add class to Advance > CSS IDS & Classes > Class. For section : vsection | For row : vrow | for module : vmodule */ 

.vrow .et_pb_column,
.vsection,
.vmodule {
   display: flex;
   flex-direction: column;
   justify-content: center;
}