#s1_wrap {
    width: 22%;
    margin-left: -11.5%;
}
.s1_btn {
    width: 47%;
}
.s1_btn:nth-child(1) {
    background-color: #353535;
}
#s4_text li,#s6_text li {
    font-size: 22px;
    margin-bottom: 20px;
}
#s6_txt {
    color: #222222;
}
#section_5 {
    background-image: url(../img/wrok/3.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    margin-top: 50px;
}
#in_s6,#in_s7 {
    padding: 65px 0;
}
#section_7 {
    background-image: url(../img/wrok/4.jpg);
    background-size: cover;
    background-repeat: no-repeat;
}

.s7_txt{
    float: left;
    width: 100%;
    overflow: hidden;
    text-align: center;
    font-size: 18px;
    font-weight: 400;
    color: #ffffff;
    margin-bottom: 30px;
}