html - 如何在div的底部和中心放置一个按钮？

Question

我在尝试将按钮放置在 div 的底部和中心时遇到了一个真正的问题。我最终让它在全屏模式下看起来正确，但我知道这种方法是完全错误的。

我能够按照我想要的方式对齐文本，但按钮的位置和翻译功能不一样。我尝试使用 bootstraps 列，但没有用。我不确定我是否完全理解相对于它们的父元素或位置定位事物。另外，我试过了

vertical-align:bottom
vertical-align:baseline

这些都不起作用。

在 div 的底部和中心放置按钮或任何元素的最佳做法是什么

.navbar-brand {
  font-family: 'Great Vibes', cursive;
  font-size: 30px;
  margin: 5px 0px 5px 1px;
}

.navbar-brand {
  color: #F05F40 !important;
}

.jumbotron {
  background: url('http://i65.tinypic.com/1213l9y.jpg') no-repeat center center fixed;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
  height: 100vh;
  width: 100vw;
  margin-left: -15px;
}

.jumbotron h1 {
  font-family: 'Great Vibes', cursive;
  font-size: 75px;
  color: white;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

.jumbotron h4 {
  font-family: 'Great Vibes', sans-serif;
  font-size: 25px;
  color: white;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

.btn-primary {
  color: white;
  background-color: #F05F40;
  border-color: #F05F40;
  -webkit-transition: all 0.35s;
  -moz-transition: all 0.35s;
  transition: all 0.35s;
  margin-top: 25%;
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary.focus,
.btn-primary:active,
.btn-primary.active,
.open>.dropdown-toggle.btn-primary {
  color: white;
  background-color: #ee4b28;
  border-color: #ed431f;
}

.btn-primary:active,
.btn-primary.active,
.open>.dropdown-toggle.btn-primary {
  background-image: none;
}

.btn-primary.disabled,
.btn-primary[disabled],
fieldset[disabled] .btn-primary,
.btn-primary.disabled:hover,
.btn-primary[disabled]:hover,
fieldset[disabled] .btn-primary:hover,
.btn-primary.disabled:focus,
.btn-primary[disabled]:focus,
fieldset[disabled] .btn-primary:focus,
.btn-primary.disabled.focus,
.btn-primary[disabled].focus,
fieldset[disabled] .btn-primary.focus,
.btn-primary.disabled:active,
.btn-primary[disabled]:active,
fieldset[disabled] .btn-primary:active,
.btn-primary.disabled.active,
.btn-primary[disabled].active,
fieldset[disabled] .btn-primary.active {
  background-color: #F05F40;
  border-color: #F05F40;
}

.btn-primary .badge {
  color: #F05F40;
  background-color: white;
}

.btn {
  font-family: 'Open Sans', 'Helvetica Neue', Arial, sans-serif;
  border: none;
  border-radius: 300px;
  font-weight: 700;
  text-transform: uppercase;
}

.btn-xl {
  padding: 15px 30px;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<header class="navbar navbar-inverse navbar-fixed-top bs-docs-nav" role="banner">
  <div class="navbar-header">
    <button class="navbar-toggle" type="button" data-toggle="collapse" data-target=".bs-navbar-collapse">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
    <a href="#" class="navbar-brand">The Authentic Gentleman</a>
  </div>
  <nav class="pull-right collapse navbar-collapse bs-navbar-collapse" role="navigation">
    <ul class="nav navbar-nav">
      <li>
        <a href="#">Home</a>
      </li>
      <li>
        <a href="#">Blog</a>
      </li>
      <li>
        <a href="#">Advice</a>
      </li>
      <li class="#">
        <a href="#">About</a>
      </li>
    </ul>
  </nav>
  </div>
</header>

<div class="container-fluid">
  <div class="jumbotron">
    <h1 class="text-center">The Authetnic Gentelman</h1>
    <h4 class="text-center">Refine your life</h4>
    <div class="text-center">
      <a href="#about" class="btn btn-primary btn-xl">Find Out More</a>

    </div>
  </div>
</div>

Answer 1

您可以使用 position: absolute; 设置它。 updated codepen

<div class="text-center btnDiv">
    <a href="#about" class="btn btn-primary btn-xl">Find Out More</a>
</div>


.jumbotron {
    position: relative;
}
.btnDiv {
  width: 100%;
  left: 0;
  bottom: 10px;
  position: absolute;
}