.manual_fixed{background:#044567}
.manual_fixed h2{font-weight:bold;font-size:32px;line-height:42px;text-align:center;color:#fff;}
.manual_fixed ul{display:flex;border-top:1px solid rgba(255,255,255,0.3)}
.manual_fixed ul li{padding:100px 50px;width:33.3%;border-right:1px solid rgba(255,255,255,0.3);}
.manual_fixed ul li .manual_img{display:block;width:90%;margin:0 auto;}
.man_fix{background:#003049;}
.manual_fixed ul li p img{width:80%;display:block;margin:0 auto;margin-top:50px;}

@media screen and (max-width:799px){
  .manual_fixed ul{display:block;}
  .manual_fixed ul li{padding:50px 30px;width:100%;}
  .manual_fixed ul li p img {
    width: 90%;
    display: block;
    margin: 0 auto;
    margin-top: 30px;}
}