The text direction default is LTR. It can be set by using one of the following configuration switches:
URL parameter sap-ui-rtl=true
Configuration object: window["sap-ui-config"].rtl = true;
Script tag configuration: data-sap-ui-rtl="true"
SAPUI5 sets the overall page direction to "RTL". All SAPUI5 content is then displayed in RTL mode. Self-written controls and content has to be tested separately. If you require manual style adoptions, provide a style specifically for the RTL case by using html[dir=rtl].