/* Prevent text selection */
body {
    user-select: none; /* For modern browsers */
    -webkit-user-select: none; /* For Safari */
    -moz-user-select: none; /* For Firefox */
    -ms-user-select: none; /* For older Internet Explorer */
}

/* Hide content when printing 
@media print {
    body {
        display: none;
    }
}

 Alternatively, replace content with dummy text when printing 
@media print {
    .content {
        color: transparent;
        text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);  
    }
}
*/