add 'position', 'z-index' and 'max-height' properties (refs #1095)
add 'position', 'z-index' and 'max-height' properties (refs #1095)

isaosano/OpenPNE3,openpne/OpenPNE3,isaosano/OpenPNE3,C-nakajima/OpenPNE3,upsilon/OpenPNE3,tejima/testravis,ShinichiU/AuthFramework,tejima/OP3PKG,nishizoe/OpenPNE3,nise-nabe/ppcon-sns,balibali/KakiageSNS,tejima/testravis,openpne/OpenPNE3,nishizoe/OpenPNE3,ShinichiU/AuthFramework,isaosano/OpenPNE3,kashiwasan/symfony-advanced,ShinichiU/OpenPNE3,tejima/OP3PKG,upsilon/travis-test,C-nakajima/OpenPNE3,tejima/testravis,C-nakajima/OpenPNE3,openpne/OpenPNE3,ShinichiU/OpenPNE3,C-nakajima/OpenPNE3,nise-nabe/ppcon-sns,ShinichiU/OpenPNE3,balibali/KakiageSNS,isaosano/OpenPNE3,ShinichiU/OpenPNE3,upsilon/OpenPNE3,ShinichiU/AuthFramework,openpne/OpenPNE3,kashiwasan/symfony-advanced,upsilon/travis-test