.center {
    width: 800px;
    margin: 0 auto;
    padding: 40px;
    box-shadow: 0 4px 8px 0 rgba(53,105,128,.3),0 6px 20px 0 rgba(165,200,213,.41);
    margin-top: 30px;
}

@media screen and (max-width: 800px){ 
    .center {
        width: auto;
    }
}

@media screen and (max-width: 676px){ 
    .center {
        padding: 40px 20px;
    }
}


.mt-4 {
    margin-top: 40px;
}

.list-item {
    list-style: none;
}

.text-right {
    text-align: right
}