.lb {padding: 0; border: 0; background: transparent; max-width: 100vw; max-height: 100vh; width: 100%; height: 100%; overflow: hidden;}
.lb::backdrop {background: rgba(0,0,0,.9);}
.lb__img {position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); max-width: 90vw; max-height: 90vh; display: block;}
.lb button {position: absolute; background: none; border: 0; color: #ffd267; cursor: pointer; line-height: 1; padding: 10px; z-index: 2;}
.lb button[hidden] {display: none;}
.lb__close {top: 20px; right: 24px; font-size: 48px;}
.lb__prev {left: 20px; top: 50%; transform: translateY(-50%); font-size: 72px;}
.lb__next {right: 20px; top: 50%; transform: translateY(-50%); font-size: 72px;}