.sub img {display:block; margin: 0 auto; }
.sub p {font-size: 16px; text-align:center;}
.sub p strong {    font-weight: 600;
    color: #d80000;
    font-size: 18px;}
.sub a {    display: block;
    width: 200px;
    font-size: 20px;
    font-weight: 500;
    margin: 20px auto 0;
    color: #fff;
    background: #1b4899;
    text-align: center;
    padding: 10px 0;
    border-radius: 5px;}
/* tablet */
@media screen and (min-width:768px) and (max-width:991px){
}

/* mobile */
@media screen and (max-width:767px){
    .sub p {
        font-size: 14px;}
    .sub img {width:100%;}
    .sub a {
        font-size: 15px;}
}