Question

我需要在以下搜索表单中制作响应式下拉过滤器。

＆＃13;

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">

  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet">
  <style type="text/css">
    body {
      padding-top: 50px;
    }
    
    .dropdown.dropdown-lg .dropdown-menu {
      margin-top: -1px;
      padding: 6px 20px;
    }
    
    .input-group-btn .btn-group {
      display: flex !important;
    }
    
    .btn-group .btn {
      border-radius: 0;
      margin-left: -1px;
    }
    
    .btn-group .btn:last-child {
      border-top-right-radius: 4px;
      border-bottom-right-radius: 4px;
    }
    
    .btn-group .form-horizontal .btn[type="submit"] {
      border-top-left-radius: 4px;
      border-bottom-left-radius: 4px;
    }
    
    .form-horizontal .form-group {
      margin-left: 0;
      margin-right: 0;
    }
    
    .form-group .form-control:last-child {
      border-top-left-radius: 4px;
      border-bottom-left-radius: 4px;
    }
    
    @media screen and (min-width: 768px) {
      #adv-search {
        width: 500px;
        margin: 0 auto;
      }
      .dropdown.dropdown-lg {
        position: static !important;
      }
      .dropdown.dropdown-lg .dropdown-menu {
        min-width: 500px;
      }
    }
  </style>
  <script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
  <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
</head>

<body>
  <div class="container">
    <div class="row">
      <div class="col-md-12">
        <div class="input-group" id="adv-search">
          <input type="text" class="form-control" placeholder="Search for snippets" />
          <div class="input-group-btn">
            <div class="btn-group" role="group">
              <div class="dropdown dropdown-lg">
                <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown" aria-expanded="false"><span class="caret"></span></button>
                <div class="dropdown-menu dropdown-menu-right" role="menu">
                  <form class="form-horizontal" role="form">
                    <div class="form-group">
                      <label for="filter">Filter by</label>
                      <select class="form-control">
                        <option value="0" selected>All Snippets</option>
                        <option value="1">Featured</option>
                        <option value="2">Most popular</option>
                        <option value="3">Top rated</option>
                        <option value="4">Most commented</option>
                      </select>
                    </div>
                    <div class="form-group">
                      <label for="contain">Author</label>
                      <input class="form-control" type="text" />
                    </div>
                    <div class="form-group">
                      <label for="contain">Contains the words</label>
                      <input class="form-control" type="text" />
                    </div>
                    <button type="submit" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
                  </form>
                </div>
              </div>
              <button type="button" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
  </div>
  <script type="text/javascript">
  </script>
</body>

</html>

＆＃13;

下拉列表的宽度应为其父宽度的宽度作为默认值。它在大型设备中工作正常但宽度因小型设备而异。您可以获取代码段https://bootsnipp.com/snippets/featured/advanced-dropdown-search。任何帮助表示赞赏。

Answer 1

嗯，这根本不干净，但它可以解决你的实际问题。只需添加：

@media (max-width: 768px) { 
    .dropdown-menu {
        width:calc(100vw - 30px);
        right:-39px;
    }
}

请注意，您将更改一个引导类，它会影响您以后可能包含的任何未来下拉菜单。如果您将自己的类添加到菜单中以使用此代码，那就更好了。

带有响应下拉过滤器的搜索表单

1 个答案: