box-shadow: inset hsla(0,0%,15%, 1) 0 0px 0px 4px, /* border */
inset hsla(0,0%,15%, .8) 0 -1px 5px 4px, /* soft SD */
inset hsla(0,0%,0%, .25) 0 -1px 0px 7px, /* bottom SD */
inset hsla(0,0%,100%,.7) 0 2px 1px 7px, /* top HL */
hsla(0,0%, 0%,.15) 0 -5px 6px 4px, /* outer SD */
hsla(0,0%,100%,.5) 0 5px 6px 4px; /* outer HL */
transition: color .2s;