body {
  font-family: Arial, sans-serif;
  margin: 20px;
}

/* Default styles for laptops and desktops */
h1 {
  font-size: 3em;
}

hr {
  height: 4px;
  border-style: solid;
  background-color: black;
}

.dynamic-hr {
  height: 10px;
  border-width: 0px;
  background-color: green;
}

.normal-hr {
  height: 2px;
  border-width: 0px;
  background-color: grey;
}

#main-body-container {
  width: 70%;
  border: #0c0c0c;
  border-style: none; /* none, ridge, dashed */
  border-width: 15px;
  margin: 5px;
}

#top-table {
  width: 700px;
}

#clock {
  font-size: 1em;
  font-family: Arial, sans-serif;
  color: #0c0c0c;
}

/* Styles for phones and smaller screens */
@media (max-width: 600px) {
  h1 {
    font-size: 2em;
  }

}