.api-link {
    padding: 5px 0 5px 26px;
    display: block;
    background: url(../img/swagger-ui.svg) no-repeat left center;
    background-size: 26px;
}

.pure-link {
    padding: 5px 0 5px 26px;
    display: block;
    background: url(../img/pubman_favicon_22_22.png) no-repeat left center;
}

.pdf-link {
    padding: 5px 0 5px 26px;
    display: block;
    background: url(../img/Noun_Project_PDF_icon_117327_cc.svg) no-repeat left center;
    background-size: 26px;
}


.invalid-feedback { display: block; }

.filter-col .button-bar,
.filter-col form label {
    display: block;
    font-weight: bold;
    padding: 10px 18px;
    margin-top: 6px;
    margin-bottom: 1em;
    color: white;
    background-color: #212529;
}

.filter-col ul {
    padding-left: 0;
}
.filter-col li {
    display: block;
}
.filter-col li a {
    display: inline-block;
    border-radius: 5px;
    border: 1px solid silver;
    width: 4em;
    margin-bottom: 6px;
    text-align: center
}
.filter-col .selected {
    font-weight: bold;
    background-color: #0069d9;
    border-color: #0069d9;
    color: white;
}