.gr-bi{background-image:url(/images/gr1.png),url(/images/gr2.png),url(/images/gr3.png);background-blend-mode:color-dodge,color-dodge,luminosity;background-size:100% 70%,0 70%,100% 60%;background-position:0 0,100% 0,100% 0;background-repeat:no-repeat,no-repeat,no-repeat}