html - Bootstrap 导航栏换行到第二行

Question

我正在使用 Bootstrap 制作导航栏，我的精简菜单总是换行，即使上面的行应该有空间。这在添加徽标（代替红色块）时开始发生。

.logo-scrollbar {
  width: 30%;  
}

#mainNav {
  border-bottom: 1px solid rgba(33, 37, 41, 0.1);
  background-color: #fff;
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
  -webkit-transition: all 0.2s;
  transition: all 0.2s;
}

#mainNav .navbar-brand {
  font-weight: 700;
  text-transform: uppercase;
  color: #12AEA1;
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
}



#mainNav .navbar-nav > li.nav-item > a.nav-link,
#mainNav .navbar-nav > li.nav-item > a.nav-link:focus {
  font-size: .9rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #212529;
}



@media (min-width: 992px) {

  #mainNav .navbar-nav > li.nav-item > a.nav-link {
    padding: 0.5rem 1rem;
  }

  #mainNav.navbar-shrink {
    border-bottom: 1px solid rgba(33, 37, 41, 0.1);
    background-color: #fff;
  }


}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-expand-lg navbar-light fixed-top" id="mainNav">
    <div class="container">
        <a class="navbar-brand js-scroll-trigger" href="#page-top">
            <img src="https://www.gettyimages.ie/gi-resources/images/Homepage/Hero/UK/CMS_Creative_164657191_Kingfisher.jpg" class="logo-scrollbar" alt="logo image">
        </a>
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
    <div class="collapse navbar-collapse" id="navbarResponsive">
        <ul class="navbar-nav ml-auto">
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#about">About</a>
            </li>
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#services">Services</a>
            </li>
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#team">Team</a>
            </li>
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#contact">Contact</a>
            </li>
        </ul>
    </div>
</div>

什么会导致这种情况？

标签： htmlcsstwitter-bootstrapnavbar

Answer 1

似乎.logo-scrollbar在内部以百分比形式设置 img 的宽度存在问题a .navbar-brand，您有 3 个选项

1-覆盖.navbar-brandto的显示display: contents;

.logo-scrollbar {
  width: 30%;  
}

#mainNav {
  border-bottom: 1px solid rgba(33, 37, 41, 0.1);
  background-color: #fff;
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
  -webkit-transition: all 0.2s;
  transition: all 0.2s;
}

#mainNav .navbar-brand {
  font-weight: 700;
  text-transform: uppercase;
  color: #12AEA1;
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
  display: contents;       /* add this */
}



#mainNav .navbar-nav > li.nav-item > a.nav-link,
#mainNav .navbar-nav > li.nav-item > a.nav-link:focus {
  font-size: .9rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #212529;
}



@media (min-width: 992px) {

  #mainNav .navbar-nav > li.nav-item > a.nav-link {
    padding: 0.5rem 1rem;
  }

  #mainNav.navbar-shrink {
    border-bottom: 1px solid rgba(33, 37, 41, 0.1);
    background-color: #fff;
  }


}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-expand-lg navbar-light fixed-top" id="mainNav">
    <div class="container">
        <a class="navbar-brand js-scroll-trigger" href="#page-top">
            <img src="https://www.gettyimages.ie/gi-resources/images/Homepage/Hero/UK/CMS_Creative_164657191_Kingfisher.jpg" class="logo-scrollbar" alt="logo image">
        </a>
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
    <div class="collapse navbar-collapse" id="navbarResponsive">
        <ul class="navbar-nav ml-auto">
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#about">About</a>
            </li>
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#services">Services</a>
            </li>
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#team">Team</a>
            </li>
            <li class="nav-item">
                <a class="nav-link js-scroll-trigger" href="#contact">Contact</a>
            </li>
        </ul>
    </div>
</div>

.logo-scrollbar2-设置宽度px

3-设置width: 30%;to.navbar-brand和width:100%to.logo-scrollbar