body {
    user-select: none; /* Disables text selection */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -o-user-select: none;
}
img {
    user-drag: none; /* Prevents dragging */
    -webkit-user-drag: none; /* For WebKit browsers */
}