Андрей

.uk-navbar-nav>li>a {
    min-height: 40px; /* уменьшили высоту */
}

.uk-navbar-item, .uk-navbar-nav>li>a, .uk-navbar-toggle {
   min-height: 40px; 
}

.features__item:not(:first-child) {
    border-left: 2px solid #003a7d;
}

.features__item {
	position: relative;
}
.features__item:not(:first-child)::before {
	content: '';
	position: absolute;
	top: 0;
	left: -1px;
	border-left: 2px solid #003a7d;
	height: calc(100% - 40px);
}
.features__item:nth-child(odd)::before{
	top: 40px;
}

.features__item {
  position: relative;
}
.features__item:not(:first-child)::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 40px;
  left: -1px;
  border-left: 2px solid #003a7d;
}
.features__item:nth-child(odd)::before{
  top: 40px;
  bottom: 0;
}