.sticky-top {
    height: 170px;
}
.sticky-top .navbar-brand {
    top: 70px;
}
#arthagoras {
    border-bottom: 2px solid #10c4ab ;
    height:50px;
    padding-top: 12px;
    padding-bottom: 12px;
    width: 100%;
}
#arthagoras img{
    height: 26px;
    width: auto;
}
.sticky-top.pulled-in {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.sticky-top.pulled-in #arthagoras {
    display: none;
}
.navbar-toggler-icon {
    height: 1.25em;
    width: 1.25em;
}