body{
    background: linear-gradient(to bottom, rgb(246, 245, 245), rgb(208, 218, 157));
    background-attachment: fixed;
}
#horas{
    background-color: rgb(102, 214, 115);
}

h1{
    font-family: Arial, Helvetica, sans-serif;
}

table{
    margin-top: 100px;
    margin-left: auto;
    margin-right: auto;

}
th{
    text-align: center;
}
td{
    height: 50px;
    text-align: center;
    border: 1px solid black;
}