.frm{top:-.3em;right:-.3em;bottom:-.3em;left:-.3em;filter:brightness(2)contrast(1.2)}
.frm:before,.frm:after{border-width:calc(.3em + 1px)}
.frm:before{border-image:url(../mask/frm2.svg)52 51 51 52 round;filter:hue-rotate(10deg)}
.frm:after{border-image:url(../mask/frm2.png)52 51 51 52 round;filter:hue-rotate(160deg)drop-shadow(0 0 .4px #330);mix-blend-mode:difference}