JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

<!-- Set a password for the account -->
                        <div class="col-md-12" style="margin: 7px;">
                            <input type="password" id="reg_password" name="reg_password" style="height: 35px;" class="form-control input-lg" placeholder="Password" ng-model="register_password" />
                            <input type="checkbox" id="eye" onclick="if(reg_password.type=='text')reg_password.type='password'; else reg_password.type='text';" />
                        </div>

CSS

#eye {
  position:absolute;
  right:50px;
  top:6px;
}