Footer space won't go away

Currently I am using the Sydney free theme and I love it.
I have tried the various CSS code solutions however I cannot seem to remove the footer on the bottom of all pages. currently I have

body,
.container.content-wrapper {
background-color: transparent !important;
}

.page-wrap {
padding-bottom: 0;
}

but no avial. Am I missing somthing

Thanks for the Help

Hi,

I think you need these css code instead:

.site-footer {
    display: none;
}