.contactus-list {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}
.contactus-list .item {
    width: calc(33.33% - 15px);
    padding: 20px;
    margin: 15px 0;
    background-color: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
    border-radius: 8px;
}

@media (max-width: 768px) {
    .contactus-list .item {
        width: 100%;
        margin-top: 0;
        margin-bottom: 0;
        padding: 10px 20px;
        box-shadow: unset;
        border-bottom: 1px dashed #999;
        border-radius: unset;
    }
    .contactus-list .item p {
        margin-bottom: 0;
    }
}