header .banner {
    background-image: url(../image/banner5.png);   
}
main .title {
    color: black;
    font-size: 28px;
    margin: 80px auto 20px;
    font-weight: bolder;
}
main .underline {
    width: 50px;
    height: 0;
    border-bottom: 3px solid #0c7fa4;
    margin: 27px auto 30px;
}
main .client-company {
    padding: 40px 10px;
}
main .client-company div {
    width: 243px;
    height: 173px;
    background-size: cover;
    background-position: center;
    box-shadow: 0px 2px 16px 6px rgba(164,164,164,0.10); 
}
@media screen and (min-width:1550px){
    .container {
        width: 1550px;
    }
}

@media screen and (max-width: 780px) {

    main .client-company {
        padding: 10px;
    }
    main .client-company div {
        display: block;
        width: 100%;
        height: 120px;
    }
}