.mainArea.successPage {
    height: calc(100vh - 400px);
    min-height: 400px;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    padding: 60px 0;
    text-align: center;
}
@media (max-width: 768px) {
    .mainArea.successPage {
        height: auto;
        min-height: 200px;
    }
}
.mainArea.successPage .successTxt {
    color: #108835;
    font-size: 30px;
    line-height: 1.3;
}
@media (max-width: 1180px) {
    .mainArea.successPage .successTxt {
        font-size: 26px;
    }
}
@media (max-width: 768px) {
    .mainArea.successPage .successTxt {
        font-size: 22px;
    }
}
@media (max-width: 400px) {
    .mainArea.successPage .successTxt {
        font-size: 18px;
    }
}

.contentBox .leftBox {
    padding: 0 50px 0 0;
}
@media (max-width: 1180px) {
    .contentBox .leftBox {
        padding: 0 0 30px 0;
    }
}
.contentBox .rightBox {
    padding: 0;
}

.sideContactInfo {
    margin-top: 20px;
}