Question

我正在创建一个下拉登录表单，但是一旦jQuery正常工作，我就会在左侧显示菜单（当登录时右侧）。一些图像可以清楚地看到它：

当我点击“登录”时：

以这种方式加载。这是代码：

HTML：

<div id="navthing">
  <h2><a href="#" id="loginform">Log in</a> | <a href="#">Sign Up</a></h2>
  <div class="login">
    <div class="arrow-up"></div>
    <div class="formholder">
      <div class="randompad">
        <fieldset>
          <label name="email">Email</label>
          <input type="email" value="example@example.com" />
          <label name="password">Password</label>
          <input type="password" />
          <input type="submit" value="Login" />
        </fieldset>
      </div>
    </div>
  </div>
</div>

和CSS：

#navthing {
  text-align: right;
  padding: 0.5em;
}

.login {
  position: absolute;
  width:250px;
  display:none;
  z-index: 9999;
}

.formholder {
  background: #ecf0f1;
  width: 250px;
  border-radius: 5px;
  padding-top: 5px;
  z-index: 1;
  display:block;
}

.arrow-up {
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-bottom: 15px solid #ECF0F1;
  left: 10%;
  position: absolute;
  top: -10px;
}

.formholder input[type="email"], .formholder input[type="password"] {
  padding: 7px 5px;
  margin: 10px 0;
  width: 96%;
  display: block;
  font-size: 18px;
  border-radius: 5px;
  border: none;
  -webkit-transition: 0.3s linear;
  -moz-transition: 0.3s linear;
  -o-transition: 0.3s linear;
  transition: 0.3s linear;
}

.formholder input[type="email"]:focus, .formholder input[type="password"]:focus {
  outline: none;
  box-shadow: 0 0 1px 1px #1abc9c;
}
.formholder input[type="submit"] {
  background: #1abc9c;
  padding: 10px;
  font-size: 20px;
  display: block;
  width: 100%;
  border: none;
  color: #fff;
  border-radius: 5px;
}
.formholder input[type="submit"]:hover {
  background: #1bc6a4;
}

.randompad {
  padding: 10px;
}

.green {
  color: #1abc9c;
}

a {
  color: #ecf0f1;
  text-decoration: none;
}
a:hover {
  color: #1abc9c;
}

jsfiddle

我在.login中获得position的{{1}}因为如果没有，菜单会使absolute div更大。如何在“登录”下方显示菜单（箭头和表格的其余部分）？我正在尝试，但没有结果。谢谢。

Answer 1

如果我正确理解您的问题，您正尝试将菜单放在导航栏的右侧。如果是这样，您只需要通过right或left属性为其添加正确的位置。我还更改了箭头位置，并将position:relative添加到您的#navthing。

＆＃13;

$( document ).ready(function() {

$('input[type="submit"]').mousedown(function(){
  $(this).css('background', '#2ecc71');
});
$('input[type="submit"]').mouseup(function(){
  $(this).css('background', '#1abc9c');
});

$('#loginform').click(function(){
  $('.login').fadeToggle('slow');
  $(this).toggleClass('green');
});



$(document).mouseup(function (e)
{
    var container = $(".login");

    if (!container.is(e.target) 
        && container.has(e.target).length === 0) 
    {
        container.hide();
        $('#loginform').removeClass('green');
    }
});
});

＆＃13;

* {
	margin:0;
	padding:0;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

body {
	font-family: 'Roboto', Arial, Tahoma;
	font-size: 62.5%;
	background: #242c38;
}

#navthing {
	text-align: right;
    position:relative;
	padding: 0.5em;
}

.login {
	position: absolute;
    right: 52px;
    top: 41px;
	width:250px;
	display:none;
	z-index: 9999;
}

.formholder {
  background: #ecf0f1;
  width: 250px;
  border-radius: 5px;
  padding-top: 5px;
  z-index: 1;
  display:block;
}

.arrow-up {
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-bottom: 15px solid #ECF0F1;
  right: 10%;
  position: absolute;
  top: -10px;
}

.formholder input[type="email"], .formholder input[type="password"] {
  padding: 7px 5px;
  margin: 10px 0;
  width: 96%;
  display: block;
  font-size: 18px;
  border-radius: 5px;
  border: none;
  -webkit-transition: 0.3s linear;
  -moz-transition: 0.3s linear;
  -o-transition: 0.3s linear;
  transition: 0.3s linear;
}

.formholder input[type="email"]:focus, .formholder input[type="password"]:focus {
  outline: none;
  box-shadow: 0 0 1px 1px #1abc9c;
}
.formholder input[type="submit"] {
  background: #1abc9c;
  padding: 10px;
  font-size: 20px;
  display: block;
  width: 100%;
  border: none;
  color: #fff;
  border-radius: 5px;
}
.formholder input[type="submit"]:hover {
  background: #1bc6a4;
}

.randompad {
  padding: 10px;
}

.green {
  color: #1abc9c;
}

a {
  color: #ecf0f1;
  text-decoration: none;
}
a:hover {
  color: #1abc9c;
}

header {
	width:90%;
	height:30%;
	margin: 0 auto;
	background-color:darkblue;
	color:white;
	/*text-align:center;*/
	z-index: 8;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<header>
<div id="navthing">
      <h2><a href="#" id="loginform">Log in</a> | <a href="#">Sign Up</a></h2>
   <div class="login">
    <div class="arrow-up"></div>
     <div class="formholder">
       <div class="randompad">
           <fieldset>
             <label name="email">Email</label>
             <input type="email" value="example@example.com" />
             <label name="password">Password</label>
             <input type="password" />
             <input type="submit" value="Login" />
           </fieldset>
       </div>
      </div>
   </div>
</div>
</header>

＆＃13;

Answer 2

你想要这样吗？

＆＃13;

$( document ).ready(function() {

$('input[type="submit"]').mousedown(function(){
  $(this).css('background', '#2ecc71');
});
$('input[type="submit"]').mouseup(function(){
  $(this).css('background', '#1abc9c');
});

$('#loginform').click(function(){
  $('.login').fadeToggle('slow');
  $(this).toggleClass('green');
});



$(document).mouseup(function (e)
{
    var container = $(".login");

    if (!container.is(e.target) 
        && container.has(e.target).length === 0) 
    {
        container.hide();
        $('#loginform').removeClass('green');
    }
});
});

＆＃13;

* {
	margin:0;
	padding:0;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
}

body {
	font-family: 'Roboto', Arial, Tahoma;
	font-size: 62.5%;
	background: #242c38;
}

#navthing {
	text-align: right;
	padding: 0.5em;
}

.login {
	position: absolute;
	width:250px;
	display:none;
	z-index: 9999;
    right:40px;
}

.formholder {
  background: #ecf0f1;
  width: 250px;
  border-radius: 5px;
  padding-top: 5px;
  z-index: 1;
  display:block;
  margin-top:15px;
}

.arrow-up {
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-bottom: 15px solid #ECF0F1;
  left: 41%;
  position: absolute;
  top: 0px;
}

.formholder input[type="email"], .formholder input[type="password"] {
  padding: 7px 5px;
  margin: 10px 0;
  width: 96%;
  display: block;
  font-size: 18px;
  border-radius: 5px;
  border: none;
  -webkit-transition: 0.3s linear;
  -moz-transition: 0.3s linear;
  -o-transition: 0.3s linear;
  transition: 0.3s linear;
}

.formholder input[type="email"]:focus, .formholder input[type="password"]:focus {
  outline: none;
  box-shadow: 0 0 1px 1px #1abc9c;
}
.formholder input[type="submit"] {
  background: #1abc9c;
  padding: 10px;
  font-size: 20px;
  display: block;
  width: 100%;
  border: none;
  color: #fff;
  border-radius: 5px;
}
.formholder input[type="submit"]:hover {
  background: #1bc6a4;
}

.randompad {
  padding: 10px;
}

.green {
  color: #1abc9c;
}

a {
  color: #ecf0f1;
  text-decoration: none;
}
a:hover {
  color: #1abc9c;
}

header {
	width:90%;
	height:30%;
	margin: 0 auto;
	background-color:darkblue;
	color:white;
	/*text-align:center;*/
	z-index: 8;
}

＆＃13;

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<header>
<div id="navthing">
      <h2><a href="#" id="loginform">Log in</a> | <a href="#">Sign Up</a></h2>
   <div class="login">
    <div class="arrow-up"></div>
     <div class="formholder">
       <div class="randompad">
           <fieldset>
             <label name="email">Email</label>
             <input type="email" value="example@example.com" />
             <label name="password">Password</label>
             <input type="password" />
             <input type="submit" value="Login" />
           </fieldset>
       </div>
      </div>
   </div>
</div>
</header>

＆＃13;

Answer 3

如果您希望此阻止位于select city, length(city) from ( select max(city) keep (dense_rank first order by length(city), city) as city from station union select max(city) keep (dense_rank first order by length(city) desc, city) as city from station );位置absolute此链接，您有几个选择。

一，你保留这个结构并将相对位置放在父亲relative上，然后你定位它。

或者您将此块放在链接本身的容器中，并将header添加到链接的容器中。

我选择第一种方式和here is the JsFiddle

更改的代码：

position:relative;

Answer 4

.login {
    position: absolute;
    width:250px;
    display:none;
    z-index: 9999;
  right: 50px;
  top: 40px;
}

.arrow-up {
  width: 0;
  height: 0;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
  border-bottom: 15px solid #ECF0F1;
  right: 10%;
  position: absolute;
  top: -10px;
}

我的下拉菜单未显示在父级下方

4 个答案: