@media only screen and (max-width: 800px) {
    .my-tab-list img{
        width: 100% ;
        float: none;
    }
    .my-tab-list img:after{
        clear: both;
        content:"";
        display: block;
    }
    .my-tab-list .nav-item .nav-link{
        font-size:14px;
        padding: 5px 7px;
    }
}

@media only screen and (max-width: 600px) {
    h1{
        font-size: 150%;
    }
    .bigSlide .caption  a{
        line-height: 24px;
        font-size: 18px;
    }
}