Changing font size on Gallery captions

Site URL: http://www.stampdesignco.comp

Hi there,

Does anyone know how to reduce the font size of my gallery captions? I can't figure it out for the life of me!! I'd also like to change the font to Montserrat if possible. 

Thanks,

Emma

It looks like you solved with this CSS?

.sqs-gallery-block-grid.sqs-gallery-block-meta-only-title .margin-wrapper .image-slide-title {
    font-family: montserrat !important;
    font-size: 12px !important;
    line-height: 2em !important;
    text-transform: none !important;
    letter-spacing: .05em !important;
    font-weight: 300 !important;
    font-style: normal !important;
    color: #404040 !important;
}