.todo-container {
    max-width: 600px;
    margin: 0 auto;
}
.list-group-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.list-group-item button {
    border: none;
    background: none;
    color: red;
    font-size: 1.2rem;
}