html - Bootstrap 4 : center h1 on bootstrap 4 NavBar

Question

目前我正在练习 bootstrap 和 html，我正在尝试将我的 <h1> 居中在导航栏上，我尝试了很多方法，即使使用 css 方法也行不通，所以这是我的图片

供您引用，我在我的 HTML 中使用了这段代码，

但是，它没有用，

 <h1 class="nabar" id="nabar" href="#" style="color: #2c3e50; text-align:center;">e-ticket</h1>

我的完整代码

    <nav class="navbar navbar-toggleable-md navbar-light bg-faded" style="background-color: #ecf0f1">

  <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation" style="background-color: #ecf0f1;">
    <span class="navbar-toggler-icon"></span>
  </button>
    <a class="nabar center-block" id="nabar" href="#" style="color: #2c3e50; text-align:center;">e-ticket</a>
  <div class="collapse navbar-collapse" id="navbarSupportedContent">
    <ul class="navbar-nav mr-auto">
      <li class="nav-item active">
        <a class="nav-link" href="#" style="color:#2c3e50;">Home <span class="sr-only">(current)</span></a>
      </li>


    </ul>
    <form class="form-inline my-2 my-lg-0">
      <input class="form-control mr-sm-2" type="text" placeholder="Search">
      <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
    </form>
  </div>
</nav>

Answer 1

只需使用mx-auto...

https://www.codeply.com/go/S2g7bPmHjN

<nav class="navbar navbar-toggleable-md navbar-light bg-faded" style="background-color: #ecf0f1">

    <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation" style="background-color: #ecf0f1;">
        <span class="navbar-toggler-icon"></span>
    </button>
    <h1 class="mx-auto"><a class="nabar" id="nabar" href="#" style="color: #2c3e50; text-align:center;">e-ticket</a></h1>
    <div class="collapse navbar-collapse" id="navbarSupportedContent">
        <ul class="navbar-nav mr-auto">
            <li class="nav-item active">
                <a class="nav-link" href="#" style="color:#2c3e50;">Home <span class="sr-only">(current)</span></a>
            </li>
        </ul>
        <form class="form-inline my-2 my-lg-0">
            <input class="form-control mr-sm-2" type="text" placeholder="Search">
            <button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
        </form>
    </div>
</nav>