table,td{
    border: 1px solid black;
    border-collapse: collapse;
    padding: 10px;
}
.middle{
    text-align: center;
}
h1{
    display: table;
    color: red;
    background-color: black;
    border: 2px solid green;
    padding: 10px;
}
h1,table{
    margin-left: auto;
    margin-right: auto;
}
thead{
    background-color: skyblue;
}