.yith-search-shop-header-ae9ca4fe {
    width: 100%;
    max-width: 600px;
    margin: 0 auto 30px auto;
    padding: 10px 0;
}

.yith-search-shop-header-ae9ca4fe .yith-s {
    width: 100%;
}

@media (max-width: 768px) {
    .yith-search-shop-header-ae9ca4fe {
        max-width: 100%;
        padding: 10px 15px;
    }
}