#history-list ul {
    list-style-type: none;
    padding: 0;
}

#history-list li {
    margin-bottom: 10px;
    padding: 5px;
    background-color: #f0f0f0;
    border-radius: 5px;
}

#clear-history {
    margin-top: 20px;
    margin-bottom: 20px;
}