master
// shadows depth01 = 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24) depth02 = 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23) depth03 = 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23)