src/js/theme/styleGenerator.js
function(options) {
        return classRule(classNameConst.HEAD_AREA)
            .bg(options.background)
            .border(options.border)
            .build();
    }
function(options) {
        return classRule(classNameConst.HEAD_AREA)
            .bg(options.background)
            .border(options.border)
            .build();
    }
function ( options ) { return classRule ( classNameConst . HEAD_AREA ) . bg ( options . background ) . border ( options . border ) . build ( ) ; }
Generates a css string for head area.
@param {Object} options - options
@returns {String}
Generates a css string for head area .