styles.css

body {
    font-family: Arial, Helvetica, sans-serif;
    margin: 20px;
    padding: 0;
    background-color: #f4f4f4
}

h1 {
    color: #333;
}

form {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

input,
select,
button {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    border-radius: 5px;
    border: 1px solid #ddd;
}

button {
    background-color: #5cb85c;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #4cae4c;
}

.expense-form,
expenses-list {
    width: 50%;
    margin: auto;
}

.expenses-list {
    margin-top: 20px;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.expense {
    background: #e3e3e3;
    border-radius: 8px;
    padding: 10px;
    margin-top: 10px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Media Queries for larger screens */
@media (min-width:768px) {

    form,
    #expenses-list {
        width: 50%;
        margin: auto;
    }
}

@media (min-width:1024px) {

    form,
    #expenses-list {
        width: 40%;
    }
}