.sponsor-banner {
    padding: 40px 0 20px;
    background-color: lightgray;
    text-align: center;

}

.sponsor-banner a {

}

.sponsor-banner img {
    /*margin: 0 10px;*/
    -webkit-filter: grayscale(1);
    filter: grayscale(100%) opacity(90%);
    padding: 10px;
    /*border: 1px solid #ccc;
    background-color: #cccccc;*/
    height: 70px;
    width: auto;
    margin: 0 20px;
}

.sponsor-banner img:hover {
    filter: none;
}

.sponsor-banner .c-sponsors {
    font-size: 12px;
    text-transform: uppercase;
    margin: 10px 0;
    font-style: italic;
}