.maincontent {
    margin: 0;
    padding: 0 !important;
    border: none;
}

#why_choose_section {
    padding-top: 25px;
    padding-bottom: 25px;
}
.why-choose-item:nth-of-type(4),
.why-choose-item:nth-of-type(5) {
    width: 48.5%;
}

@media (max-width: 1200px) {
    .why-choose-item {
        width: 48.5%;
    }
    .why-choose-item:nth-of-type(5) {
        width: 98.5%;
    }
}

@media (max-width: 750px) {
    .why-choose-item,
    .why-choose-item:nth-of-type(4),
    .why-choose-item:nth-of-type(5) {
        width: 100%;
    }
}