twitter-bootstrap 如何在 Bootstrap 4 中更改导航栏边框颜色

How to change navbar border color in Bootstrap 4

提问by Mr.Joe

In Bootstrap 3 we can change navbar color by setting .navbar-lightborder-color. However, it doesn't working by setting .navbar-lightborder-color in Bootstrap 4.

在 Bootstrap 3 中，我们可以通过设置.navbar-light边框颜色来更改导航栏颜色。但是，它不能通过.navbar-light在 Bootstrap 4 中设置边框颜色来工作。

回答by domshyra

Since the OP wanted just the border on the bottom.

由于 OP 只想要底部的边框。

<nav class="navbar border-bottom border-dark">
   ...
</nav>

if you'd like to change the colors or anything else with the borders refer to @klooven's answer.

如果您想更改颜色或其他任何带有边框的内容，请参阅@klooven 的答案。

Here is the link too.

这里也是链接。

回答by ALOMGIR HOSSEN

 <style>
        .navbar
        {
            border:5px solid #000;
        }
      </style>

try it

试试看

Thanks

谢谢

回答by Jayakumar Bellie

<nav class="navbar border border-dark">
   ...
</nav>

https://getbootstrap.com/docs/4.0/utilities/borders/#border-color

https://getbootstrap.com/docs/4.0/utilities/borders/#border-color

回答by Klooven

You can use the border classes in Bootstrap.

您可以在 Bootstrap 中使用边框类。

Check thispage for the classes.

检查此页面以了解课程。

Eg. class border-primary.

例如。类border-primary。