Removing the grey line in the footer

[Kastyuk]

Hi, i tried most of the codes i found in the the web with the same issue like my, but it didn’t help in my situation. Can you, please, provide me with the code to remove the grey line in the footer.
http://illusorystudio.com/
Thank you

[thai]

Hi There,

Please try adding the following CSS under Customizer > Custom > Global CSS:

footer.x-colophon {
    box-shadow: none;
    border-top: none;
}

Hope it helps