.nb-border-beam{position:relative;width:400px;height:400px;background:#171717;overflow:hidden}.nb-border-beam__mask{--size:200;--anchor:90;--border-width:1.5;--color-from:#ffaa40;--color-to:#0096FE;--duration:10s;--easing:linear;-webkit-mask:linear-gradient(transparent,transparent),linear-gradient(#fff,#fff);mask:linear-gradient(transparent,transparent),linear-gradient(#fff,#fff);border:calc(var(--border-width)* 1px) solid #fff0;-webkit-mask-composite:source-in,xor!important;mask-composite:intersect!important;-webkit-mask-clip:padding-box,border-box!important;mask-clip:padding-box,border-box!important;inset:0;position:absolute;pointer-events:none}.nb-border-beam__mask::after{content:"";offset-path:rect(0 auto auto 0 round calc(var(--size)* 1px));offset-anchor:calc(var(--anchor)* 1%) 50%;background:linear-gradient(to left,var(--color-from),var(--color-to),transparent);animation:border-beam calc(var(--duration)) infinite var(--easing);width:calc(var(--size)* 1px);aspect-ratio:1 / 1;position:absolute;max-height:100%}@keyframes border-beam{100%{offset-distance:100%}}.brx-body.iframe .nb-border-beam--disable-builder .nb-border-beam__mask::after{animation:unset}