Hello,
Please add this code to the Theme Settings > Custom CSS > Global:
body .tabs-layout-tabs .tabs li a {
padding:10px 20px;
}
body .product-tabs-wrapper {
border-top: 1px solid transparent;
border-bottom: 1px solid transparent;
}
.tabs-layout-tabs .tabs {
border-bottom: 1px solid rgba(119,119,119,.2);
border-top: 1px solid rgba(119,119,119,.2);
background:rgba(119,119,119,.2)
}
.tabs-layout-tabs .tabs li.active {
background:red;
}
body .tabs-layout-tabs .tabs li{
margin:0;
}
body .tabs-layout-tabs .tabs li a:hover{
background:red;
}
body .wc-tabs-wrapper {
border-left: 1px solid rgba(119,119,119,.2);
border-right: 1px solid rgba(119,119,119,.2);
}
body .wd-tab-wrapper{
padding:0 20px;
}
Best Regards