style.css

.stButton > button{
    color: #FFFFFF;
    background-color: #C60C35;
    font-size: 18px;
    height: 35px;
    width: 40%;
    margin: 0%;
    position: relative;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}

.stButton> button:hover{
    color: #FFFFFF;
    background-color: #920000;
    border-color: #920000;
    font-size: 20px;
    height: 35px;
    width: 40%;
    
}
thead tr {
    background-color: #009879;
    text-align: left;
}
thead tr th {
    color:#FFFFFF !important;
}
th, td {
    padding: 12px 15px;
}

table {
    border-collapse: collapse;
    margin: 25px 0;
    font-size: 0.9em;
    font-family: sans-serif;
    min-width: 400px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.15);
}

tbody tr {
    border-bottom: 1px solid #dddddd;
}

tbody tr:nth-of-type(even) {
    background-color: #f3f3f3;
}

tbody tr:last-of-type {
    border-bottom: 2px solid #009879;
}

tbody tr.active-row {
    font-weight: bold;
    color: #009879;
}

.stAlert {
    justify-content:baseline;
    display: flex;
}