@property --mask-opacity{inherits:true;initial-value:60%;syntax:"<length-percentage>"}.b-batch2-grid-with-tall-image .slide-mask{-webkit-mask-composite:source-out;mask-composite:subtract;-webkit-mask-image:linear-gradient(to top,transparent 0,#d9d9d9 var(--mask-opacity,60%));mask-image:linear-gradient(to top,transparent 0,#d9d9d9 var(--mask-opacity,60%));-webkit-mask-position:bottom;mask-position:bottom;-webkit-mask-repeat:no-repeat;mask-repeat:no-repeat;-webkit-mask-size:100%;mask-size:100%;transition:--mask-opacity .3s ease-out}