<div class="input-group mb-3">
                <span class="input-group-text" id="basic-addon1">@</span>
                <input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="basic-addon1">
            </div>
            
            <div class="input-group mb-3">
                <input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="basic-addon12">
                <span class="input-group-text" id="basic-addon12">@schoolapp.com</span>
            </div>
            
            <div class="mb-3">
                <label for="basic-url" class="form-label">Your vanity URL</label>
                <div class="input-group">
                    <span class="input-group-text" id="basic-addon3">https://schoolapp.com/</span>
                    <input type="text" class="form-control" id="basic-url" aria-describedby="basic-addon3 basic-addon4">
                </div>
                <div class="form-text" id="basic-addon4">Example help text goes outside the input group.</div>
            </div>
            
            <div class="input-group mb-3">
                <span class="input-group-text">$</span>
                <input type="text" class="form-control" aria-label="Amount (to the nearest dollar)">
                <span class="input-group-text">.00</span>
            </div>
            
            <div class="input-group mb-3">
                <input type="text" class="form-control" placeholder="Username" aria-label="Username">
                <span class="input-group-text">@</span>
                <input type="text" class="form-control" placeholder="Server" aria-label="Server">
            </div>
            
            <div class="input-group">
                <span class="input-group-text">With textarea</span>
                <textarea class="form-control" aria-label="With textarea"></textarea>
            </div>
                                

            <div class="input-group input-group-sm mb-3">
                <span class="input-group-text" id="inputGroup-sizing-sm">Small</span>
                <input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-sm">
            </div>
            
            <div class="input-group mb-3">
                <span class="input-group-text" id="inputGroup-sizing-default">Default</span>
                <input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-default">
            </div>
            
            <div class="input-group input-group-lg">
                <span class="input-group-text" id="inputGroup-sizing-lg">Large</span>
                <input type="text" class="form-control" aria-label="Sizing example input" aria-describedby="inputGroup-sizing-lg">
            </div>
                                

            <div class="input-group mb-3">
                <button class="btn btn-outline-secondary" type="button" id="button-addon1">Button</button>
                <input type="text" class="form-control" placeholder="" aria-label="Example text with button addon" aria-describedby="button-addon1">
            </div>
            
            <div class="input-group mb-3">
                <input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username" aria-describedby="button-addon2">
                <button class="btn btn-outline-secondary" type="button" id="button-addon2">Button</button>
            </div>
            
            <div class="input-group mb-3">
                <button class="btn btn-outline-secondary" type="button">Button</button>
                <button class="btn btn-outline-secondary" type="button">Button</button>
                <input type="text" class="form-control" placeholder="" aria-label="Example text with two button addons">
            </div>
            
            <div class="input-group mb-3">
                <input type="text" class="form-control" placeholder="Recipient's username" aria-label="Recipient's username with two button addons">
                <button class="btn btn-outline-secondary" type="button">Button</button>
                <button class="btn btn-outline-secondary" type="button">Button</button>
            </div>
            <div class="input-group mb-3">
                <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
                <ul class="dropdown-menu">
                    <li><a class="dropdown-item" href="#">Action</a></li>
                    <li><a class="dropdown-item" href="#">Another action</a></li>
                    <li><a class="dropdown-item" href="#">Something else here</a></li>
                    <li>
                        <hr class="dropdown-divider">
                    </li>
                    <li><a class="dropdown-item" href="#">Separated link</a></li>
                </ul>
                <input type="text" class="form-control" aria-label="Text input with dropdown button">
            </div>
            
            <div class="input-group mb-3">
                <input type="text" class="form-control" aria-label="Text input with dropdown button">
                <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
                <ul class="dropdown-menu dropdown-menu-end">
                    <li><a class="dropdown-item" href="#">Action</a></li>
                    <li><a class="dropdown-item" href="#">Another action</a></li>
                    <li><a class="dropdown-item" href="#">Something else here</a></li>
                    <li>
                        <hr class="dropdown-divider">
                    </li>
                    <li><a class="dropdown-item" href="#">Separated link</a></li>
                </ul>
            </div>
            
            <div class="input-group">
                <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
                <ul class="dropdown-menu">
                    <li><a class="dropdown-item" href="#">Action before</a></li>
                    <li><a class="dropdown-item" href="#">Another action before</a></li>
                    <li><a class="dropdown-item" href="#">Something else here</a></li>
                    <li>
                        <hr class="dropdown-divider">
                    </li>
                    <li><a class="dropdown-item" href="#">Separated link</a></li>
                </ul>
                <input type="text" class="form-control" aria-label="Text input with 2 dropdown buttons">
                <button class="btn btn-outline-secondary dropdown-toggle" type="button" data-bs-toggle="dropdown" aria-expanded="false">Dropdown</button>
                <ul class="dropdown-menu dropdown-menu-end">
                    <li><a class="dropdown-item" href="#">Action</a></li>
                    <li><a class="dropdown-item" href="#">Another action</a></li>
                    <li><a class="dropdown-item" href="#">Something else here</a></li>
                    <li>
                        <hr class="dropdown-divider">
                    </li>
                    <li><a class="dropdown-item" href="#">Separated link</a></li>
                </ul>
            </div>