How to make the text initially hidden?

[newjie]

I am trying to use letterFx for my slideshow text. It makes more sense if the text could appear with the animation, but I can't find the setting. It seems that I have to have the text show on the screen before I can make any FX.

[danielferrazramos]

CSS

span#js-animated {
    visibility    : hidden;
}

JS

$(window).bind('load', function() {
    $('#js-animated').letterfx().css('visibility', 'visible');
});