html - Bootstrap 导航栏垂直居中水平？

Question

是否可以将导航栏垂直和水平居中？

/**
 * Logo.
 */
.button-logo {
    font-family: 'Monoton', cursive;
    font-weight:normal;
    font-size:40px;
    font-weight: 300;
    line-height: 40px;
    letter-spacing: 1px;
}

.button-logo:hover {
    text-decoration: none;
}

.button-logo span {
    display: block;
    clear:both;
    color: #000;
}

/**
 * Centerise the logo.
 */
.navbar-header {
    float: left;
    text-align: center;
    width: 100%;
}

.navbar-brand {
    float:none;
}

/**
 * Centerise the navbar.
 */
.navbar .navbar-nav {
    display: inline-block;
    float: none;
}

.navbar .navbar-collapse {
    text-align: center;
}

/**
 * Remove default background, radius, etc.
 */
.navbar {
    -webkit-border-radius: 0;
    -moz-border-radius: 0;
    border-radius: 0;

    border: 0;
    background: none;
    box-shadow: none;
    margin-bottom: 0;
}

.navbar-default .navbar-nav > li > a {
    font-family: 'Monoton', cursive;
    font-size: 25px;
    letter-spacing: 2px;
    color: #000;
    color: rgba(0, 0, 0, 0.5);
    padding-bottom: 0 !important;
}

.navbar-default .navbar-nav > li > a:hover {
    color: #000;
}

.navbar-default .navbar-nav > .active > a,
.navbar-default .navbar-nav > .active > a:hover,
.navbar-default .navbar-nav > .active > a:focus {
    background: none;
    background: none;
    box-shadow: none;
    color: #000;
}

<!-- Static navbar -->
<nav class="navbar navbar-default navbar-fixed-top">
    <div class="container-fluid">

        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="offcanvas" data-target=".navmenu" data-canvas="body">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand button-logo" href="#">
                <span>brand</span>
                <span>brand</span>
                <span>brand</span>
            </a>
        </div>

        <div id="navbar" class="navbar-collapse collapse">

            <!-- menu-box -->
            <div class="menu-box">
                <ul class="nav navbar-nav">
                    <li class="active"><a href="home.html">Home</a></li>
                    <li><a href="about.html">About</a></li>
                    <li><a href="contact.html">Contact</a></li>
                </ul>
            </div>
            <!-- menu-box -->

        </div><!--/.nav-collapse -->
    </div><!--/.container-fluid -->
</nav>

但这只会使导航栏水平居中而不是垂直。

有什么想法吗？

jsfiddle

Answer 1

要将导航栏放在屏幕中央，您只需添加

nav {
  position: fixed;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

https://jsfiddle.net/anpvtaxu/1/