body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 {
    margin-top: 20px;
}

table {
    width: 80%!important;
    margin: 20px 0;
    border-collapse: collapse;
}

table, th, td {
    border: 1px solid black;
}

th, td {
    padding: 10px;
    text-align: left;
}

.form-container {
    width: 80%;
    margin: 20px 0;
}

form {
    margin-bottom: 20px;
}

input {
    padding: 10px;
    margin: 5px 0;
    width: calc(100% - 22px);
    box-sizing: border-box;
}

button {
    padding: 10px 20px;
    margin-top: 10px;
    cursor: pointer;
}