.page-content{ width: 760px; padding-left: 192px; float: left; padding-top: 72px ; padding-bottom: 72px; }

.banner{ background: url('../img/banners/common-1.jpg') no-repeat center center; background-size: cover;}

.box{ padding-bottom: 50px;}
.box h4{ height: 42px; font-size: 30px; padding-bottom: 16px; color: #2a2e2e;}
.box h4 span{ font-size: 20px; padding-left: 12px;}
.box .box_txt{ line-height: 26px; color: #5f6464;}

#board6 .box_txt span {
    letter-spacing: 2px;
}
.box_txt .txt-space {
    letter-spacing: 2px;
}
@media screen and (max-width: 769px) {
   .page-main .f-content{ width:88%;}
   .box h4{ font-size: 24px; height: auto;}
   .box h4 span{ font-size: 16px; display: block; padding-left:0px; }

    .banner {
        background-position: 42% center;
    }
}