body{
    justify-content: center;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-height: unset;
    width: 100%;
    background: #f4efe7 url("paper-bg.jpg") no-repeat top/cover;
}
p{
    margin:0;
}
table, th, td{
    border-collapse: collapse;
    font-size: 25px;
}
th, td {
    padding: 5px;
}
th{
    text-align: center;
    background-color: #DEB887;
    white-space: nowrap;
}
th.upgrade{
    width: 70%;
}
th.level, th.price{
    width: 25%;
}
tr:nth-child(odd){
    background-color: #FAF0E6;
}
tr:nth-child(even){
    background-color: white;
}
.center{
    margin-left: auto;
    margin-right: auto;
}
tr:hover {background-color: #D2B48C;}
tr td:nth-child(2) {
    text-align: center;
}
tr td:nth-child(3) {
    text-align: center;
}
.tooltip{
    position: relative;
    display: inline-block;
    border-bottom: 1px dotted black;
}
.tooltip .tooltiptext {
    visibility: hidden;
    min-width: 400px;
    background-color: white;
    color: black;
    text-align: center;
    border-radius: 6px;
    box-shadow: 0 2px 1px #bcbcbc;
    padding: 20px;
    position: absolute;
    z-index: 1;
    bottom: 100%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 2s;
}
.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: white transparent transparent transparent;
}
.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}