main {
    padding: 50px 0px 50px 0px !important;
    margin-left:20px;
    margin-right:20px;
}
.navbar {
    padding-top:3px;
    padding-bottom: 3px;
}
.nav-link.active {
    background-color:darkgrey!important;
}

.container {
    margin-left:0px;
    margin-right:0px;
}
.center {
    text-align: center;
}