Adding asterisk to required fields in Bootstrap 3

CssFormsTwitter Bootstrap-3Form Fields

Css Problem Overview

My HTML has a class called .required that is assigned to required fields.

Here is the HTML:

<form action="/accounts/register/" method="post" role="form" class="form-horizontal">
    <input type='hidden' name='csrfmiddlewaretoken' value='brGfMU16YyyG2QEcpLqhb3Zh8AvkYkJt' />
    <div class="form-group required">
       <label class="col-md-2 control-label">Username</label>
       <div class="col-md-4">
         <input class="form-control" id="id_username" maxlength="30" name="username" placeholder="Username" required="required" title="" type="text" />
       </div>
    </div>
    <div class="form-group required"><label class="col-md-2 control-label">E-mail</label><div class="col-md-4"><input class="form-control" id="id_email" name="email" placeholder="E-mail" required="required" title="" type="email" /></div></div>
    <div class="form-group required"><label class="col-md-2 control-label">Password</label><div class="col-md-4"><input class="form-control" id="id_password1" name="password1" placeholder="Password" required="required" title="" type="password" /></div></div>
    <div class="form-group required"><label class="col-md-2 control-label">Password (again)</label><div class="col-md-4"><input class="form-control" id="id_password2" name="password2" placeholder="Password (again)" required="required" title="" type="password" /></div></div>
    <div class="form-group required"><label class="col-md-2 control-label">first name</label><div class="col-md-4"><input class="form-control" id="id_first_name" maxlength="30" name="first_name" placeholder="first name" required="required" title="" type="text" /></div></div>
    <div class="form-group required"><label class="col-md-2 control-label">last name</label><div class="col-md-4"><input class="form-control" id="id_last_name" maxlength="30" name="last_name" placeholder="last name" required="required" title="" type="text" /></div></div>
    <div class="form-group required"><label class="col-md-2 control-label">&#160;</label><div class="col-md-4"><div class="checkbox"><label><input class="" id="id_tos" name="tos" required="required" type="checkbox" /> I have read and agree to the Terms of Service</label></div></div></div>

    <div class="form-group">
        <div class="col-sm-offset-2 col-sm-10">
           <button type="submit" class="btn btn-primary">
              <span class="glyphicon glyphicon-star"></span> Sign Me Up!
           </button>
        </div>
    </div>
</form>

I added the following to my CSS;

.form-group .required .control-label:after {
  content:"*";color:red;
}

Still that does not give a red * around the required fields. What am I missing here? Isn't there a direct way in Bootstrap 3 to introduce * to required fields?

EDIT

The * in terms and conditions does not appear immediately to a checkbox. How to fix this?

enter image description here

Css Solutions

Solution 1 - Css

Use .form-group.required without the space.

.form-group.required .control-label:after {
  content:"*";
  color:red;
}

Edit:

For the checkbox you can use the pseudo class :not(). You add the required * after each label unless it is a checkbox

.form-group.required:not(.checkbox) .control-label:after, 
.form-group.required .text:after { /* change .text in whatever class of the text after the checkbox has */
   content:"*";
   color:red;
}

Note: not tested

You should use the .text class or target it otherwise probably, try this html:

<div class="form-group required">
   <label class="col-md-2 control-label">&#160;</label>
   <div class="col-md-4">
      <div class="checkbox">
         <label class='text'> <!-- use this class -->
            <input class="" id="id_tos" name="tos" required="required" type="checkbox" /> I have read and agree to the Terms of Service
         </label>
      </div>
   </div>
</div>

Ok third edit:

CSS back to what is was

.form-group.required .control-label:after { 
   content:"*";
   color:red;
}

HTML:

<div class="form-group required">
   <label class="col-md-2">&#160;</label> <!-- remove class control-label -->
   <div class="col-md-4">
      <div class="checkbox">
         <label class='control-label'> <!-- use this class as the red * will be after control-label -->
            <input class="" id="id_tos" name="tos" required="required" type="checkbox" /> I have read and agree to the Terms of Service
         </label>
      </div>
   </div>
</div>

Solution 2 - Css

Assuming this is what the HTML looks like

<div class="form-group required">
   <label class="col-md-2 control-label">E-mail</label>
   <div class="col-md-4"><input class="form-control" id="id_email" name="email" placeholder="E-mail" required="required" title="" type="email" /></div>
</div>

To display an asterisk on the right of the label:

.form-group.required .control-label:after { 
   	color: #d00;
   	content: "*";
   	position: absolute;
   	margin-left: 8px;
   	top:7px;
}

Or to the left of the label:

.form-group.required .control-label:before{
   color: red;
   content: "*";
   position: absolute;
   margin-left: -15px;
}

To make a nice big red asterisks you can add these lines:

font-family: 'Glyphicons Halflings';
font-weight: normal;
font-size: 14px;

Or if you are using Font Awesome add these lines (and change the content line):

font-family: 'FontAwesome';
font-weight: normal;
font-size: 14px;
content: "\f069";

Solution 3 - Css

.form-group .required .control-label:after should probably be .form-group.required .control-label:after. The removal of the space between .form-group and .required is the change.

Solution 4 - Css

use simple css,

.myform .required:after {
  content: " *";
    color: red;
    font-weight: 100;
}


 <form class="myform">
    <div class="col-md-12">
      <label for="xxx_fname" class="form-label required">First Name</label>
      <input type="text" class="form-control" id="xxx_fname" >
   </div>
    <div class="col-md-12">
      <label for="xxx_lname" class="form-label required">Last Name</label>
      <input type="text" class="form-control" id="xxx_lname" >
   </div>
</form

Solution 5 - Css

The other two answers are correct. When you include spaces in your CSS selectors you're targeting child elements so:

.form-group .required {
    styles
}

Is targeting an element with the class of "required" that is inside an element with the class of "form-group".

Without the space it's targeting an element that has both classes. 'required' and 'form-group'

Solution 6 - Css

This CSS worked for me:

.form-group.required.control-label:before{
   color: red;
   content: "*";
   position: absolute;
   margin-left: -10px;
}

and this HTML:

<div class="form-group required control-label">
  <label for="emailField">Email</label>
  <input type="email" class="form-control" id="emailField" placeholder="Type Your Email Address Here" />
</div>

Solution 7 - Css

This works for me:

CSS

.form-group.required.control-label:before{
   content: "*";
   color: red;
}

OR

.form-group.required.control-label:after{
   content: "*";
   color: red;
}

Basic HTML

<div class="form-group required control-label">
  <input class="form-control" />
</div>

Solution 8 - Css

I modified the css, as i am using bootstrap 3.3.6

.form-group.required label:after{   
color: #d00;   
font-family: 'FontAwesome'; 
font-weight: normal;
font-size: 10px;
content: "\f069"; 
top:4px;   
position: absolute;   
 margin-left: 8px;
}

the HTML

<div class="form-group required">
 <label for="return_notes"><?= _lang('notes') ?></label>
 <textarea class="form-control" name="return_notes" id="return_notes"  required="required"></textarea>
</div>
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