HTML/CSS Positioning Problem / Divs Colliding

Question

I have tried fixing this one issue for over 4 hours now and it's getting quite frustrating, I am a beginner when it comes to HTML/CSS and I would greatly appreciate the help!

Goal: Place ".menuButton" on the bottom left corner + ensure that the icon actually shows up

Please bear in mind that the code runs alot better on my end and everything is correctly positioned + the social icons do show up, my only issue has been placing .menuButton on the bottom left, as I am not entirely sure why the positioning is so bad.

P.S This isn't a simple fix like trying a different display: option, positioning, or changing margins, trust me I have tried almost everything | Also ensure there are no issues with the background

P.S2 For a better interpratation of the code please check the codepen and test your answer there

https://codepen.io/jonathanz-10/pen/mdMLpXp

CSS:

body,
html {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Helvetica', sans-serif;
    background: -webkit-linear-gradient(-45deg, rgba(26, 188, 156, 1) 0%, rgba(142, 68, 173, 1) 100%);
}

h1 {
    font-size: 24px;
    margin: 10px 0 0 0;
    font-weight: lighter;
    text-transform: uppercase;
    color: #eeeeee;
}

p {
    font-size: 12px;
    font-weight: light;
    color: #333333;
}

span a {
    font-size: 18px;
    color: #cccccc;
    text-decoration: none;
    margin: 0 10px;
    transition: all 0.4s ease-in-out;
    &:hover {
        color: #ffffff;
    }
}

@keyframes float {
    0% {
        box-shadow: 0 5px 15px 0px rgba(0,0,0,0.6);
        transform: translatey(0px);
    }
    50% {
        box-shadow: 0 25px 15px 0px rgba(0,0,0,0.2);
        transform: translatey(-20px);
    }
    100% {
        box-shadow: 0 5px 15px 0px rgba(0,0,0,0.6);
    }
}

 .container {
  height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
} 

.avatar {
  background: url("https://jonathanz-10.github.io/Website/images/avatar.png");
  background-repeat: no-repeat;
  background-size: 100% 100%;
    width: 150px;
    height: 150px;
    box-sizing: content-box;
    border: 5px white solid;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 5px 15px 0px rgba(0,0,0,0.6);
    animation: float 6s ease-in-out infinite;
}

.content {
    width: 100%;
    max-width: 600px;
    padding: 20px 40px;
    box-sizing: border-box;
    text-align: center;
}

 .menuButton{
  bottom: 0;
  left: 0;
  height: 200px;
  width: 200px;
  display: inline-block;
  text-align: center;
  border: 2px solid red;
  background-repeat: no-repeat;
  background-image: url("https://jonathanz-10.github.io/Website/images/avatar.png");
} 

<script src="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"></script>
<div class="container">
      <div class="avatar"></div>
      <div class="content">
        <h1>JZ</h1>
        <p>Follow me on:</p>
        <p>
          <span><a href="https://twitter.com/" target="_blank"><i class="fa fa-twitter"></i></a></span>
          <span><a href="https://github.com/" target="_blank"><i class="fa fa-github"></i></a></span>
          <span><a href="https://www.linkedin.com/in/" target="_blank"><i class="fa fa-linkedin"></i></a></span>
          <span><a href="https://codepen.io/" target="_blank"><i class="fa fa-codepen"></i></a></span>
        </p>
        <p>For more information scroll down</p>
      </div>
    </div>
    <div class="menuButtton">hi</div>

Answer 1

there is typo in the class attribute ;)

change

<div class="menuButtton">hi</div>

to

<div class="menuButton">hi</div>