.topic-box-about {
    margin-top: 12px;
    text-align: center;
    width: 100%;
}


    .topic-box-about-box {
        transition: background-color 0.5s ease; 
        background-color: #005e96;
        width: 15%;
        margin-right: 2%;
        height: 160px;
        margin-bottom: 12px;
        color: #fff;
        text-align: center;
        padding-top: 12px;
        position: relative;
        float: left;
    }
    .topic-box-about-box:hover {
        background-color: #196ea0;
        color: #fff;
        text-decoration: none;
    }
    .topic-box-about-box:nth-child(6) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(12) {
        margin-right: 0%;
    }
    
    
    .topic-box-about-box-title {
        width: 80%;
        font-size: 1.1em;
        margin: auto;
        height: 50px;
    }
/*    .topic-box-about-box-icon {
        width: 80%;
        margin: auto;
        position: absolute;
        bottom: 0px;
        left: 10%;
    }*/

@media screen and (min-width: 992px) and (max-width: 1199px) {
    .topic-box-about-box-title {
        font-size: 1.0em;
    }
}

@media screen and (min-width: 768px) and (max-width: 991px) {
    .topic-box-about-box-title {
        font-size: .9em;
    }
}

@media screen and (max-width: 767px) {
    .topic-box-about-box {
        width: 24%;
        margin-right: 1%;
    }
    .topic-box-about-box:nth-child(6) {
        margin-right: 1%;
    }
    .topic-box-about-box:nth-child(12) {
        margin-right: 1%;
    }
}

@media screen and (max-width: 479px) {
    .topic-box-about-box {
        width: 49%;
        margin-right: 1.9%;
    }
    
    .topic-box-about-box:nth-child(6) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(2) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(4) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(6) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(8) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(10) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(12) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(14) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(16) {
        margin-right: 0%;
    }
    .topic-box-about-box:nth-child(18) {
        margin-right: 0%;
    }

    .topic-box-about-box-title {
        font-size: .9em;
    }
}