*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
body{
     background-color: aliceblue;
     font-family: Arial, sans-serif;
     background-color: #f2f2f2;
     margin: 0;
     padding: 0;
    }
    .container {
        background-color: #fff;
        max-width: 400px;
        margin: 20px auto;
        padding: 20px;
        border-radius: 8px;
        box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
        animation-name: move;
        animation-duration: 6s;
        animation-fill-mode: forwards;
        animation-iteration-count: 1;
    }
    @keyframes move{
        from{
            opacity: 0;
            margin-top: -4rem;
        }
        to{
            opacity: 1;
        }
    }

    h1 {
        text-align: center;
        margin-bottom: 20px;
    }
        
    input[type="text"] {
        width: 70%;
        padding: 10px;
        border: 1px solid #ccc;
        border-radius: 5px;
        outline-color: crimson;
    }

    button {
        padding: 10px;
        background-color: crimson;
        color: white;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: 0.6s;
        margin-left: 10px;
    }
    .theList{
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
    }
      button:hover{
        opacity: 0.5;
      }
    ul {
        list-style-type: none;
        padding: 0;
    }

    li {
        margin: 10px 0;
        padding: 5px;
        background-color: #fff;
        border: 1px solid #ccc;
        border-radius: 5px;
        cursor: pointer;
    }

    .done {
        text-decoration: underline;
    }
    @media screen and (max-width: 768px) {
        .container{
            width: 90%;
        }
    }

    footer{
        text-align: center;
        margin-bottom: 0;
        margin: auto;
    }