src/sap.m/src/sap/m/PlanningCalendar.js
function toggleSizeClasses(iSize) {
		var sCurrentSizeClass = 'sapMSize' + iSize,
			oRef = this.$(),
			i,
			sClass;

		if (oRef) {
			for (i = 0; i < 3; i++) {
				sClass = 'sapMSize' + i;
				if (sClass === sCurrentSizeClass) {
					oRef.addClass(sClass);
				} else {
					oRef.removeClass(sClass);
				}
			}
		}
	}
function toggleSizeClasses(iSize) {
		var sCurrentSizeClass = 'sapMSize' + iSize,
			oRef = this.$(),
			i,
			sClass;

		if (oRef) {
			for (i = 0; i < 3; i++) {
				sClass = 'sapMSize' + i;
				if (sClass === sCurrentSizeClass) {
					oRef.addClass(sClass);
				} else {
					oRef.removeClass(sClass);
				}
			}
		}
	}
function toggleSizeClasses ( iSize ) { var sCurrentSizeClass = 'sapMSize' + iSize , oRef = this . $ ( ) , i , sClass ; if ( oRef ) { for ( i = 0 ; i < 3 ; i ++ ) { sClass = 'sapMSize' + i ; if ( sClass === sCurrentSizeClass ) { oRef . addClass ( sClass ) ; } else { oRef . removeClass ( sClass ) ; } } } }
as all our css should depend on the main container size, not screen size like sapUiMedia-Std-Tablet...
as all our css should depend on the main container size not screen size like sapUiMedia - Std - Tablet ...