body {
    background-color: white;
    margin: 0px;
    font-family: 'Courier New', Courier, monospace;
}

nav {
    
    background-color: #585858;
    overflow: hidden;
}
header{
 margin: 0px;
}
nav a {
    float: left;
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    font-family: 'Courier New', Courier, monospace;
    font-weight: 700;
    font-size: 25px;
}

nav a:hover {
    background-color: #ddd;
    color: black;
    text-decoration: underline;
}

nav a:before {
    content: '';
    display: block;
    height: 6px;
    width: 0%;
    background-color: #444;
    position: absolute;
    top: 0;
    transition: all ease-in-out 250ms;
}
.textbox {
  background-color: #C8C7C2;      
  color: #000000;              
  padding: 30px;               
  margin: 50px auto;           
  width: 70%;         
  border: 5px solid black;
  border-radius: 10px;         
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4); 
  font-weight: 900;
  font-size: 25px; 
  line-height: 1.6;            
}
.textbox h2 {
    text-align: center;
    font-size: 50px;
  }