/* === styles.css === */

*,
*::before,
*::after {
box-sizing: border-box;
}

/* ... (General body styles remain the same) ... */
* { margin: 0; padding: 0; }


/* --- Root Variables and General Styles --- */

/* BOX MODEL EXAMPLE */
font-size: 2rem;
background color: blue;
width: 300px;
height: 100px;
padding: 16px;
border: 5px solid black;
margin: 0;
}


body {
  font-family: FontAwesome; arial, sans-serif; tahoma;
  font-size: 14px;
}

#myBtn {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  font-size: 16px;
  border: solid;
  outline: none;
  background-color: purple;
  color: white;
  cursor: pointer;
  padding: 15px;
  border-radius: 4px;
}

#myBtn:hover {
  background-color: #555;
}