.custom-textarea{background-attachment:local;background-image:linear-gradient(to right,white 0px,transparent 0px),linear-gradient(to left,white 0px,transparent 0px),repeating-linear-gradient(white,white 30px,#000 30px,white 31px);line-height:30px}.dark .custom-textarea{background-image:linear-gradient(to right,#000 0px,transparent 0px),linear-gradient(to left,#000 0px,transparent 0px),repeating-linear-gradient(#000,#000 30px,white 30px,#000 31px)}