#app {
    position: relative;
    display: flex;
    justify-content: center;
}
table {
    position: absolute;
    width: 50%;
    border: 1px solid black;
    border-radius: 7px;
    top: 70px;
}
th {
    height: 50px;
}
td {
    height: 30px;
    text-align: center;
    border-bottom: 1px solid #ddd;
}
.no {
    text-align: right;
    padding-right: 20px;
    border-bottom: none;
}