Adding a border to a Colour section

I’m trying to add a border to a colour section but it doesn’t seem to be working. I’ve added an id of #ffkraft to the section. Here is the code I’ve used to apply the border.

#ffkraft {
    border-top-width: 4px !important;
    border-bottom-width: 4px !important;
    border-color: #E0C5AC !important;
}

It’s worked on the footer and the socket but not the section for some reason. Is it possible to add a border to a colour section?