hr {
    border: 0;
    height: 1px;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0));
}

.nav-pills {
    position: relative;
    display: inline;
}

.imtip {
    position: absolute;
    top: 0;
    left: 0;
}