html {
    background-color: lightgray;
}

body {
    font-family: sans-serif;
    background-color: #f0f0f0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    width: 500px;
}

.input-area {
    display: flex;
    margin-bottom: 10px;
}

.input-area input {
    flex: 1;
    padding: 10px;
    border: 1px solid #c30e0e;
    border-radius: 4px;
}

.input-area button {
    padding: 10px 20px;
    background-color: #b61a1a;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

#taskList {
    list-style: none;
    padding: 0;
}

#taskList li {
    padding: 10px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
}

#taskList li button {
    background-color: #f44336;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

h1 {
    text-align: center;
}