style.css

body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #383838;
    color: #f1f1f1;
}

table {
  font-family: 'Courier New', Courier, monospace;
  border-collapse: collapse;
  width: 100%;
}

table th, table td {
  border: 1px solid white;
  padding: 8px;
  text-align: center;
}

#toolbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 5%;
    background-color: #222;
    display: flex;
    justify-content: center;
    align-items: center;
}

button {
    font-size: 16px;
    font-weight: bold;
    color: #fff;
    background-color: #449d44;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

button:hover {
    background-color: #5cb85c;
}

#registers {
    position: fixed;
    top: 5%;
    right: 0;
    width: 20%;
    height: 95%;
    background-color: #383838; /* Change the background color to match #edit */
    border: 5px solid #444;
    box-sizing: border-box;
    overflow: auto;
}

#edit {
    position: absolute;
    top: 5%;
    left: 0;
    width: 80%;
    height: 70%;
    background-color: #383838;
    border: 5px solid #444;
}

#execute {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80%;
    height: 25%;
    background-color: #383838;
    border: 5px solid #444;
    display: flex;
}

#instruction-memory {
    flex: 1;
    height: 100%;
    padding: 10px;
    box-sizing: border-box;
    border-right: 5px solid #444;
    overflow: auto;
}

#data-memory {
    flex: 1;
    height: 100%;
    padding: 10px;
    box-sizing: border-box;
    border-right: none;
    overflow: auto;
}

h2 {
    margin: 10px;
}

#editor {
    position: absolute;
    top: calc(10px + 1.5em + 10px); /* Height of h2 (10px margin + 1.5em font-size) + 10px spacing */
    left: 10px;
    right: 10px;
    bottom: 25px;
    padding: 10px;
    box-sizing: border-box;
    border: none;
    background-color: #4c4c4c; /* Change the background color to a different shade of gray */
    color: #f1f1f1;
    font-family: 'Courier New', Courier, monospace;
    font-size: 16px;
    resize: none;
    overflow: auto;
}