h1, h2, h5{
    text-align: center;
}

ol {
    width: fit-content;
    margin: 0 auto;
    padding-left: 0;
    text-align: center;
}

ol, li{
    font-size: 40px;
    list-style-position: inside;
    margin: 10px 0;
}

.container {
    display: flex;
    justify-content: center;
    height: 50%; /* 可选 */
    width:50%;
    background-color: lightgray;
    border-radius: 30px;
    margin: 0 auto;
}


li:hover, a:hover{
    color: blue;
}

.finished {
    text-decoration: line-through;
    color: gray;
}

form {
    display: flex;
    justify-content: center;
    width:50%;
    margin: 0 auto;
}

#deletefinished {
    margin-top: 0px;
    color:red;
    font-size: 20px;
}

#chsdeleteform {
    display:flex;
    justify-content: center;
    text-align: right;
    align-items: right;
    width:50%;
}