styles.css

body {
    font-family: arial;
    margin: 0;
    padding: 0;
    display:"block";
    min-height: 100vh;
}

#favicon {
  border-radius: 50%;
}

/* Mobile Navigation */

@media only screen and (min-width: 320px) and (max-width: 768px) {

  .topnav {
    overflow: hidden;
    background-color: #333;
    position: relative;
    text-align: center;
  }

  .topnav #myLinks {
    display: none;
  }

  .topnav a {
    color: white;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 17px;
    display: block;
    font-weight: 900;
  }

  .topnav a.icon {
    background: #007DC1;
    display: block;
    position: absolute;
    right: 0;
    top: 0;
  }

  .logo {
    background-color: #007DC1;
    color: white;
    font-weight: 900;
  }
}

/* Navigation Laptops/Desktops */

@media only screen and (min-width: 769px){
  .topnav {
    display: flex;
    justify-content:  space-between;
    background-color: #007DC1;
    padding-top: 20px;
    width: 100%;
  }

  .logo {
    background-color: #007DC1;
    color: white;
    text-decoration: none;
    font-weight: 900;
    padding: 0 0 20px 6px;
    font-size: 18px;
  }

  .logo {
    background-color: #007DC1;
    color: white;
    text-decoration: none;
  }

  .logo:hover {
    color: black;
    cursor: pointer;
  }

  #myLinks a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    padding-right: 20px;
    font-weight: 900;
  }

  #myLinks a:hover {
    color: black;
    cursor: pointer;
  }

  .topnav a.icon {
    display: none;
  }
}

/* Home Page */

#myLinks-home {
  padding-top: 20px;
  
}

#myLinks-home > a {
  display: block;
  color: #007DC1;
  padding: 8px 16px;
  text-decoration: none;
  font-weight: 900;
  cursor: pointer;
  text-align: center;
  border: 0.5 solid black;
}

#myLinks-home > a:hover {
  background-color: #ddd;
  color: black;
}

#home-page-img {
  padding-top: 10px;
}

/* App Body */

#wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

#wrapper div, #wrapper ul {
  width: 80%;
  max-width: 400px;
}

ul {
  padding: 0px;
}

#image-content, img {
  max-width: 280px;
  padding-top: 10px;
}

#title {
  font-size: 20px;
  font-weight: bold;
  background: white;
  padding: 10px;
}

.alternative {
  list-style-type: none;
  margin-bottom: 14px;
  padding: 10px;
  background: #E6E6E6;
  text-align: left;
  border-radius: 3px;
}

.alternative:hover {
  cursor: pointer;
  opacity: 0.8;
}

#result, #test-grade {
  font-weight: 900;
}

#test-grade {
  color: white;
  font-size: 24px;
  text-align: center;
}

#score, #result {
  color: black;
}

#incorrect {
  background-color: rgb(230, 76, 76);
  border: .2px solid black;
  border-radius: 10px;
  padding: 5px;
}

#score {
  background-color: rgb(17, 226, 79);
  border: .2px solid white;
  border-radius: 20px;
  padding: 10px;
  font-weight: 900;
}

#btn > button {
  border: none;
  background-color: #e6760e;
  border-radius: 3px;
  color: white;
  width: 100px;
  margin-top: 5px;
  padding: 5px;
  margin-right: 5px;
  font-weight: 900
}

#btn > button:hover {
  background-color: whitesmoke;
  color: #e6760e;
  cursor: pointer;
}

#btn2 > a > button {
  border: none;
  background-color: #e6760e;
  border-radius: 3px;
  color: white;
  width: 100px;
  margin-top: 5px;
  padding: 5px;
  margin-right: 5px;
  font-weight: 900
}

#btn2 > a > button:hover {
  background-color: whitesmoke;
  color: #e6760e;
  cursor: pointer;
}

#btn2 > button > a {
  text-decoration: none;
  color: white;
}

#btn2 > button > a:hover {
  color: #e6760e;
}

#grade-container {
  background-color: white;
}