如何增加Bootstrap模态框的高度

Question

我只是想让bootstrap模态框在iphone 5/6设备上显示得非常高。

我尝试过在modal-content和modal-dialog中增加高度，但它根本不起作用。

是否有简单的解决方案？

.modal-dialog{
    height:90% !important;
}

<div class="container">
  <button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
    Launch modal
  </button>
</div>

<div id="myModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="myModalLabel">My modal</h4>
      </div>
    </div>
  </div>
</div>

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

- Vzupo

Answer 1

.modal-content块位于.modal-dialog块内部。因此，请告诉子元素与父元素的高度相同。尝试：

.modal-dialog {
  height: 90%; /* = 90% of the .modal-backdrop block = %90 of the screen */
}
.modal-content {
  height: 100%; /* = 100% of the .modal-dialog block */
}

检查：

@import url('https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css');

.modal-tall .modal-dialog {
  height: 90%;
}
.modal-tall .modal-content {
  height: 100%;
}

/* fix SO stick navigation ;) */
@media (min-width: 768px) { body { padding-top: 75px; } }

<div class="container">
  <button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#modalDefault">
    Default modal
  </button>

  <button type="button" class="btn btn-warning btn-lg" data-toggle="modal" data-target="#modalTall">
    Tall modal
  </button>
</div>

<div id="modalDefault" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="myModalLabel">Default modal</h4>
      </div>
    </div>
  </div>
</div>

<div id="modalTall" class="modal modal-tall fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="myModalLabel">Modal has 90% height</h4>
      </div>
    </div>
  </div>
</div>

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

- Gleb Kemarsky

Answer 2

这是因为模型在类modal-content内部，我不知道你的代码是什么样子的，如果你的内容有一些参考，现在你可以指定像素：

.modal-content{
  height:500px;
}

- Pablo Cesar Cordova Morales

Answer 3

它在Bootstrap5上不起作用。

.modal-dialog {
  height: 90%; /* = 90% of the .modal-backdrop block = %90 of the screen */
}
.modal-content {
  height: 100%; /* = 100% of the .modal-dialog block */
}

以下代码运行良好。

.modal-dialog, .modal-content {
  height: 70%;
}

.modal-body {
  max-height: calc(100% - 120px);;
  overflow-y: scroll;
}

- Raphael