change Border-color from Accordion

Hello

i want to hide or color the top border of the accordion toggle. I have customize it but can’t get rid of the 1px line above the toggle. See attached Screenshot.

The css code so far (The Accordion is in a full width section with the ID #faq):

#faq .container {
padding:0;
}
#faq .content {
padding:0;
}
#faq.avia-section {
min-height:inherit;
}
#faq .toggle_icon {
display:none;
}
#faq .single_toggle {
text-align: center;
}
.js_active .toggler {
padding: 10px 0 !important;
background-color: #c7124a;
border: none !important;
}
.togglecontainer .single_toggle{
border-top-left-radius:0;
border-top-right-radius:0;
}
#faq.container_wrap {
border-top-width:0 !important;
}
#footer, #blognews {
border:none;
}