Why isn't my footer being displayed in the document? - html

Question

So I am putting together a website for a friend of mine who is a hair dresser and she wants a quick, flat-rate type of website so I decided bootstrap would be the avenue I take for the job.
I put together the navigation and the carousel just fine, but when I tried adding a card it placed the card almost in the direct middle of the carousel. I actually liked this look but was still confused as to how it happened and then I tried adding a footer to the landing page and now the footer doesn't show up, when I test the website for mobile devices the footer shows up along with a ton of unwanted white space.
I included the carousel to show this is how my file is structured and to help see if this will bring a solution
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<div id="carouselContainer">
<div class="row">
<div id="carouselExampleIndicators" class="carousel slide" data-bs-ride="carousel">
<div class="carousel-indicators">
<button type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide-to="0" class="active" aria-current="true" aria-label="Slide 1"></button>
<button type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide-to="1" aria-label="Slide 2"></button>
<button type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide-to="2" aria-label="Slide 3"></button>
</div>
<div class="carousel-inner">
<div class="carousel-item active">
<img src="imgs/hair_stylist.jpg" class="d-block w-100" alt="" />
</div>
<div class="carousel-item">
<img src="imgs/hair_dryer-2.webp" class="d-block w-100" alt="" />
</div>
<div class="carousel-item">
<img src="imgs/hair_dryer.jpg" class="d-block w-100" alt="" />
</div>
</div>
<button class="carousel-control-prev" type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="visually-hidden">Previous</span>
</button>
<button class="carousel-control-next" type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="visually-hidden">Next</span>
</button>
</div>
</div>
</div>
<div class="card text-white text-center bg-dark mb-3" id="aboutSection">
<div class="card-body">
<h5 class="card-title">Insert Welcome Message</h5>
<p class="card-text">
This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.
</p>
<p class="card-text">
<small class="text-muted">Last updated 2/22/2021</small>
</p>
</div>
</div>
<div class="row">
<footer class="bg-light text-center text-lg-start">
<!-- Copyright -->
<div class="text-center p-3" style="background-color: rgba(0, 0, 0, 0.2)">
© 2020 Copyright:
<a class="text-dark" href="https://mdbootstrap.com/">MDBootstrap.com</a
>
</div>
<!-- Copyright -->
</footer>
</div>

Answer 1

Your carousel and footer were both inside 'row', which was not required. I think that is the reason for overlap and white space.
You should only use class="row" if you want to divide a section into a bunch of columns as it applies css flex. Also use it inside a container/col as it also applies negative margin of 15px.
You also need jquery and bootstrap.js for the carousel navigation to work.
https://jsfiddle.net/deo8gq6t/
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<div id="carouselExampleIndicators" class="carousel slide" data-ride="carousel">
<ol class="carousel-indicators">
<li data-target="#carouselExampleIndicators" data-slide-to="0" class="active"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="1"></li>
<li data-target="#carouselExampleIndicators" data-slide-to="2"></li>
</ol>
<div class="carousel-inner">
<div class="carousel-item active">
<img class="d-block w-100" src="https://via.placeholder.com/1920x1080.png" alt="First slide">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="https://via.placeholder.com/1920x1080.png" alt="Second slide">
</div>
<div class="carousel-item">
<img class="d-block w-100" src="https://via.placeholder.com/1920x1080.png" alt="Third slide">
</div>
</div>
<a class="carousel-control-prev" href="#carouselExampleIndicators" role="button" data-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="sr-only">Previous</span>
</a>
<a class="carousel-control-next" href="#carouselExampleIndicators" role="button" data-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
<div class="card text-white text-center bg-dark mb-3" id="aboutSection">
<div class="card-body">
<h5 class="card-title">Insert Welcome Message</h5>
<p class="card-text">
This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.
</p>
<p class="card-text">
<small class="text-muted">Last updated 2/22/2021</small>
</p>
</div>
</div>
<div>
<footer class="bg-light text-center text-lg-start">
<!-- Copyright -->
<div class="text-center p-3" style="background-color: rgba(0, 0, 0, 0.2)">
© 2020 Copyright:
<a class="text-dark" href="https://mdbootstrap.com/">MDBootstrap.com</a>
</div>
<!-- Copyright -->
</footer>
</div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.6.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-Piv4xVNRyMGpqkS2by6br4gNJ7DXjqk09RmUpJ8jgGtD7zP9yug3goQfGII0yAns" crossorigin="anonymous"></script>

Answer 2

you have to remove mb-3 class from this aboutSection and add col-md-12 class add in footer for full width.
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css" integrity="sha384-JcKb8q3iqJ61gNV9KGb8thSsNjpSL0n8PARn9HuZOnIxN0hoP+VmmDGMN5t9UJ0Z" crossorigin="anonymous">
<div id="carouselContainer">
<div class="row">
<div id="carouselExampleIndicators" class="carousel slide" data-bs-ride="carousel">
<div class="carousel-indicators">
<button type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide-to="0" class="active" aria-current="true" aria-label="Slide 1"></button>
<button type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide-to="1" aria-label="Slide 2"></button>
<button type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide-to="2" aria-label="Slide 3"></button>
</div>
<div class="carousel-inner">
<div class="carousel-item active">
<img src="imgs/hair_stylist.jpg" class="d-block w-100" alt="" />
</div>
<div class="carousel-item">
<img src="imgs/hair_dryer-2.webp" class="d-block w-100" alt="" />
</div>
<div class="carousel-item">
<img src="imgs/hair_dryer.jpg" class="d-block w-100" alt="" />
</div>
</div>
<button class="carousel-control-prev" type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide="prev">
<span class="carousel-control-prev-icon" aria-hidden="true"></span>
<span class="visually-hidden">Previous</span>
</button>
<button class="carousel-control-next" type="button" data-bs-target="#carouselExampleIndicators" data-bs-slide="next">
<span class="carousel-control-next-icon" aria-hidden="true"></span>
<span class="visually-hidden">Next</span>
</button>
</div>
</div>
</div>
<div class="card text-white text-center bg-dark " id="aboutSection">
<div class="card-body">
<h5 class="card-title">Insert Welcome Message</h5>
<p class="card-text">
This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.
</p>
<p class="card-text">
<small class="text-muted">Last updated 2/22/2021</small>
</p>
</div>
</div>
<div class="row">
<footer class="col-md-12 bg-light text-center text-lg-start">
<!-- Copyright -->
<div class="text-center p-3" style="background-color: rgba(0, 0, 0, 0.2)">
© 2020 Copyright:
<a class="text-dark" href="https://mdbootstrap.com/">MDBootstrap.com</a
>
</div>
<!-- Copyright -->
</footer>
</div>