.nonSelectable {
    user-select: none;
    -o-user-select: none;
    -moz-user-select: none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
}
.selectable {
    user-select: all;
    -o-user-select: all;
    -moz-user-select: all;
    -khtml-user-select: all;
    -webkit-user-select: all;
    -ms-user-select: all;
}