.img-logo-header{
    width: 60%;
}
.img-logo-header-stick{
    width: 70px;
}
.img-logo-slide{
    width: 60%;
}
.btn-footer-ws{
    position: fixed;
    bottom: 20px;
    width: auto;
    background: #075E54;
    height: auto;
    left: 10px;
    z-index: 999;
    padding: 10px;
    color: #fff !important;
    font-weight: bold;
    border-radius: 5px;
    cursor: pointer;
}
.img-ws-footer{
    vertical-align: middle;
    width: 32px;
    margin-right: 5px;
}

@media only screen and (min-width: 576px) and (max-width: 767px) {
    .btn-footer-ws{
        width: auto;
        z-index: 99;
        padding: 15px;
        bottom: 19px;
    }
    .img-ws-footer{
        width: 30px;
        margin-right: 0;
    }
    .txt-ws{
        display: none;
    }
}
@media (max-width: 575px) {
    .btn-footer-ws{
        width: auto;
        z-index: 99;
        padding: 15px;
        bottom: 19px;
    }
    .img-ws-footer{
        width: 30px;
        margin-right: 0;
    }
    .txt-ws{
        display: none;
    }
    .img-logo-header{
        width: 35%;
    }
    .intro-big-title{
        font-size: 52px;
    }
    .txt{
        font-size: 14px;
    }
    .contact-inner-box .contact-image-box{
        width: 100%;
    }
    .contact-image-box{
        width: 100%;
    }
    .img-box{
        width: 60%;
        padding: 10px;
        margin: auto 0;
    }
}