.frm{top:-.3em;right:-.3em;bottom:.3em;left:-.3em;bottom:-.3em;filter:url(#dark-glass)}
.frm:before{background:#abc;-webkit-clip-path:var(--clipz);clip-path:var(--clipz);filter:url(#diffused1)}
.frm:after{background:
url(../mask/circle.svg).1em .1em/.17em,
url(../mask/circle.svg)calc(100% - .1em) .1em/.17em,
url(../mask/circle.svg)calc(100% - .1em) calc(100% - .1em)/.17em,
url(../mask/circle.svg).1em calc(100% - .1em)/.17em;
background-repeat:no-repeat;
filter:drop-shadow(0 0 .2px)url(#lightA6)
}