body {
    text-align: center;
    margin: 1em;
    padding: 0;
    color: #000;
    background-color: rgb(220, 220, 220);
}

footer{
    background-color: rgb(240, 240, 240);
}

#main-column {
    text-align: center;
    margin: 0 auto;
    padding: 0;
    color: #000;
    background-color: rgb(240, 240, 240);
    width: 880px;
    float: center;
    border: 1px solid black;
    border-radius: 1%
}

h1 {
    color: rgb(20, 20, 20);
    ;
    margin-left: 20px;
    font-size: 24px;
}

table {
    width: 100%;
    text-align: center;
}

.index-list li{
    font-size:18px;
    list-style-type:none;
    margin-bottom: 1.5%;
    text-align: center;
}