* {
    margin: 0;
    padding: 0;
    border: 0;
    box-sizing: border-box;
}

body {
    background-color: rgb(221, 221, 221);
    color: #345;
    font-family: verdana;
    padding: 8px;
}

h2 {
    text-align: center;
    margin-top: 100px;
}

.hours {
    width: 800px;
    margin: 16px auto;
}

thead th {
    font-weight: bold;
    text-align: left;
}

tbody th {
    font-weight: normal;
    text-align: left;
    border-collapse: collapse;
}

th, td {
    border-bottom: solid 1px gray;
    padding: 16px 8px;
}

.hours tbody th:hover {
    background-color: #8f8;
}

.hours tbody td {
    background-color: #9a3;
    border-bottom: 1px solid white;
}

.hours tbody tr:last-child th,
.hours tbody tr:last-child td {
    border-bottom: 0px;
}