Template:Navbox/style.css

.navbox-title a {
  color: black;
  text-decoration: underline;
}

.navbox-inner {
  border-spacing: 0;
}

.navbox {
  border-width: 2px;
  border-style: solid;
  padding: 0px !important;
}
.navbox-list {
  text-align: left !important;
  padding-left: 2px !important;
}