更改登录表单的大小和输入之间的空间

Question

我正在使用bootstrap 3。 我想让登录表格变小，并在输入之间改变大小，因为现在它们太近了。

这是我的代码

<div class="container">
<div class="row">
    <div class="span2 well col-lg-5">
        <legend>Please Sign In</legend>
        <!--<div class="alert alert-danger alert-dismissable">
            <span class="glyphicon glyphicon-warning-sign"></span>
            <button type="button" class="close" data-dismiss="alert">&times;</button>
            Incorrect Username or Password!
        </div>-->
        <form method="POST" action="" accept-charset="UTF-8">
        <div class="input-group input-group-sm">
            <span class="glyphicon glyphicon-user input-group-addon"></span>
            <input type="text" id="username" class="form-control input-medium" name="username" placeholder="Username" value="${userName}">
        </div>
        <div class="input-group input-group-sm">
            <span class="glyphicon glyphicon-lock input-group-addon"></span>
            <input type="password" id="password" class="form-control" name="password" placeholder="Password" value="${pass}">
        </div>
        <label class="checkbox">
            <input type="checkbox" name="remember" value="1"> Remember Me
        </label>
        <button type="submit" name="submit" class="btn btn-info btn-block">Sign in</button>
        </form>    
    </div>
</div>
</div>

怎么做？

表格

Answer 1

使用网格系统，无论如何都可以使它们更小。见下文。对于它们之间的空格Twitter Bootstrap - add top space between rows。玩得开心！

#import "AppDelegate.h"
#import <Parse/Parse.h>
#import "DefaultSettingsViewController.h"
#import <ParseFacebookUtils/PFFacebookUtils.h>
#import <FBSDKCoreKit/FBSDKCoreKit.h>
#import <FBSDKLoginKit/FBSDKLoginKit.h>
#import "Branch.h"
#import <ParseFacebookUtilsV4/PFFacebookUtils.h>

Answer 2

如果你想约束整个表单，你可以设置一些像这样的CSS规则，这也可以让你在屏幕上移动表单位置或在整个表单周围添加填充（或者它的一部分：IE顶部/底部）。

您可以使用此类规则更改字段#loginForm .input-group之间的边距。

.formCenter {
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
}
.formCenter.formChange {
    min-width: 300px;
    max-width: 500px;
    padding: 50px;
}
#loginForm .input-group {
    margin: 20px 0;
}
@media (max-width : 768px) {
    .formCenter.formChange {
        width: 100%;
    }
}

这是一个工作示例：

.formCenter {
  margin: auto;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
}
.formCenter.formChange {
  min-width: 300px;
  max-width: 500px;
  padding: 50px;
}
#loginForm .input-group {
  margin: 20px 0;
}
@media (max-width: 768px) {
  .formCenter.formChange {
    width: 100%;
  }
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="stylesheet" />
<div class="container">
  <div class="row">
    <div class="formCenter formChange">
      <div class="col-sm-12 col-md-10 col-md-offset-1 well">
        <legend>Please Sign In</legend>
        <form method="POST" action="" accept-charset="UTF-8" id="loginForm">
          <div class="form-group input-group"> <span class="input-group-addon"><i class="glyphicon glyphicon-user"></i></span>

            <input class="form-control" type="text" name='username' id="username" placeholder="Username" />
          </div>
          <div class="form-group input-group"> <span class="input-group-addon"><i class="glyphicon glyphicon-lock"></i></span>

            <input class="form-control" type="password" id="password" name='password' placeholder="Password" />
          </div>
          <div class="checkbox">
            <label>
              <input type="checkbox" name="remember" value="1">Remember Me</label>
          </div>
          <div class="form-group">
            <button type="button" class="btn btn-info btn-block">Sign In</button>
          </div>
        </form>
      </div>
    </div>
  </div>
</div>