b24-snippets/bx-custom-include/kanban-color/style.css

.kanban-color-bg-animate .crm-kanban-item-line {
    -webkit-animation: pulse 2s infinite;
    -moz-animation: pulse 2s infinite;
    -o-animation: pulse 2s infinite;
    animation: pulse 2s infinite;
}

@-webkit-keyframes pulse {
    0% {
        background-color: #f54819;
    }
    50% {
        background-color: #f5dcd5;
    }
    100% {
        background-color: #f54819;
    }
}

@-moz-keyframes pulse {
    0% {
        background-color: #f54819;
    }
    50% {
        background-color: #f5dcd5;
    }
    100% {
        background-color: #f54819;
    }
}

@-o-keyframes pulse {
    0% {
        background-color: #f54819;
    }
    50% {
        background-color: #f5dcd5;
    }
    100% {
        background-color: #f54819;
    }
}

@keyframes pulse {
    0% {
        background-color: #f54819;
    }
    50% {
        background-color: #f5dcd5;
    }
    100% {
        background-color: #f54819;
    }
}