img.img-responsive {
    display: block;
    max-width: 100%;
    height: auto;
}  

a.btn-primary {
    display: inline-block;
    margin-bottom: 0;
    font-weight: 400;
    text-align: center;
    vertical-align: middle;
    -ms-touch-action: manipulation;
    touch-action: manipulation;
    cursor: pointer;
    border: 1px solid #0000;
    white-space: nowrap;
    padding: 6px 12px;
    font-size: 16px;
    line-height: 1.42857143;
    border-radius: 4px;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-color: #0000!important;
    -moz-border-radius: 0;
    -webkit-border-radius: 0;
    color: #fff;
    border-radius: 0;
    font-weight: 700;
    background-color: rgba(130, 134, 136, 0.8);
    background-image: linear-gradient(to top,#859caa,#859caa 50%,#0000 50%,#0000);
    background-size: 100% 200%;
    transition: all .3s ease-in;
    margin-bottom: 15px;
    width: auto;
    padding: 6px 10px;
    border: none;
    text-transform: uppercase;

}

a.btn-primary:hover { 
    color: #3d4448;
    background-image: linear-gradient(to top,#859caa,#859caa 50%,#0000 50%,#0000);
    background-position: 0 100%;
    text-decoration: none;
}