h2 {
    color: blue;
    text-align: center;
}

table {
    width: 100%;
}

p {
    text-align: center;
    color: red;
    font-style: italic;
}
tr {
    text-align: center;
}

footer p {
    text-align: right;
    margin-right: 4px ;
    color:blue;
    font-style: normal;
}

.ket1 {
    text-align: center;
    font-style: italic;
    color: red;
}

button {
    margin-top: 4px;
    color: aliceblue;
    padding: 2px;
    background-color: blue;
    width: 80px;
    height: 30px;
    border-radius: 10px;
    font-weight: bold;
}
button:hover {
    background-color: rgb(83, 83, 173);
    color: rgb(179, 182, 185);
    cursor: pointer;
}

.ket2{
    font-style: normal;
    color: black;
    font-size: 18px;
    font-weight: bold;
}

.tabel2 {
    width: 50%;
}

hr {
    border-style: solid;
    background-color: black;
    height: 2px;
}

.tabel3 {
    width: 40%;
}

input {
    text-align: center;
}