.dreieck {
    width: 0;
    height: 0;
    border-left: 11px solid transparent;
    border-right: 11px solid transparent;
    border-top: 13px solid #FFF;
    display: inline-block;
}

.dreieck.animated{
    -webkit-animation-duration: 3s;
    -moz-animation-duration: 3s;
    -o-animation-duration: 3s;
    animation-duration: 3s;
    -webkit-animation-delay: 2s;
    -moz-animation-delay: 2s;
    -o-animation-delay: 2s;
    animation-delay: 2s;
}

.zertifikat{
    height: 80px;
    width: 57px;
    display: inline-block;
}

.cert-link a{
    text-decoration: none;
}

.cert-link a:hover span{
    text-decoration: underline;
}

@media all and (max-width: 1191.98px){
    .zertifikat{
        height: 60px;
        width: 42px;
    }
}

@media all and (max-width: 575.98px){

    .zertifikat{
        height: 40px;
        width: 30px;
    }

    .dreieck {
        border-left: 6px solid transparent;
        border-right: 6px solid transparent;
        border-top: 7px solid #FFF;
    }
}