Is this possible to square (straighten) the top border, as displayed in the picture below?
.nav.nav-tabs.custom-nav-tabs .nav-link {
border-radius: 0px;
}
.nav.nav-tabs.custom-nav-tabs .nav-link.active {
border-top: 2px solid green;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
<br/>
<ul class="nav nav-tabs custom-nav-tabs">
<li class="nav-item">
<a class="nav-link active" href="#activeAds" data-toggle="tab">Active Ads</a>
<input type="hidden" class="tab-name" value="active ads">
</li>
<li class="nav-item">
<a class="nav-link" href="#inactiveAds" data-toggle="tab">Inactive Ads</a>
<input type="hidden" class="tab-name" value="inactive ads">
</li>
</ul>
Borders always meet at an angle so if you have other borders the "diagonal" cannot be removed.
However, you can substitute a
box-shadow
like so.