.ext-logo-container {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
        flex-wrap: wrap;
        -webkit-box-pack: center;
            -ms-flex-pack: center;
                justify-content: center;
}

.ext-logo-container .ext-logo {
    width: 9%;
    /* min-width: 100px; */
    padding: 10px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    margin: 10px 0;
}

.ext-logo-container .img-ext-logo {
    max-height: 50px;
    width: auto;
    max-width: 100%;
    height: -webkit-fit-content;
    height: -moz-fit-content;
    height: fit-content;
    -webkit-transition: all 0.2s ease;
    -o-transition: all 0.2s ease;
    transition: all 0.2s ease;

    filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */
    filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: gray; /* IE6-9 */
    -webkit-filter: grayscale(100%); /* Chrome 19+, Safari 6+, Safari 6+ iOS */
}

.ext-logo-container a.ext-logo:hover .img-ext-logo{
    filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'1 0 0 0 0, 0 1 0 0 0, 0 0 1 0 0, 0 0 0 1 0\'/></filter></svg>#grayscale");
    filter: grayscale(0%);
    -moz-filter: grayscale(0%);
    -ms-filter: grayscale(0%);
    -o-filter: grayscale(0%);
    -webkit-filter: none ;
            filter: none ; /* IE6-9 */
    zoom:1; /* needed to trigger "hasLayout" in IE if no width or height is set */
    -webkit-filter: grayscale(0%); /* Chrome 19+, Safari 6+, Safari 6+ iOS */
    }

    @media screen and (max-width: 1000px){
        .ext-logo-container .ext-logo {
            width: 16%;
        }

        .ext-logo-container .img-ext-logo {
            max-height: 70px;
        }
    }
    
    @media screen and (max-width: 700px){
        .ext-logo-container .ext-logo {
            width: 30%;
            min-width: 100px;
        }

        .ext-logo-container .img-ext-logo {
            max-height: 100px;
        }
    }