Throughout the 20th Century, Western-trained Chinese architects have attempted to combine traditional Chinese designs into modern architecture (usually government), with great success. Moreover, the pressure for urban development throughout contemporary China required higher speed of construction and higher floor area ratio, which means that in the great cities the demand for traditional Chinese buildings, which are normally less than 3 levels, has declined in favor of modern architecture. However, the traditional skills of Chinese architecture, including major and minor carpentry, masonry, and stonemasonry, are still applied to the construction of vernacular architecture in the vast rural area in China.