body {
    text-align: center;
    background-color: rgb(219, 219, 219);
    display: flex;
    flex-direction: column;
    justify-self: center;
}

.tab {
    height: 80px;
    width: 200px;
    background-color: rgb(238, 238, 238);        
    font-size: 13pt;
    border: 3px solid black;
}

.left {
    text-align: left;
}

.right {
    text-align: right;
}

.dlev-safe {
    color: rgb(0, 233, 0);
}

.dlev-swsafe {
    color: rgb(0, 163, 0);
}

.dlev-swunsafe {
    color: rgb(200, 255, 0);
}

.dlev-unsafe {
    color: rgb(255, 255, 0);
}

.dlev-vunsafe {
    color: rgb(255, 153, 0);
}

.dlev-dangerous {
    color: rgb(223, 36, 3);
}

.dlev-vdangerous {
    color: rgb(165, 0, 0);
}

.dlev-edangerous {
    color: rgb(104, 0, 0);
}