.slide_box{ width: auto; display: flex; align-items: center;margin-bottom:100px; padding-left:32px}
.img_c_box{ position: relative; width: 80%;}
.a_c_box .a_c{background-image:url(img/dot.gif); background-repeat:no-repeat; background-position:5px center}
.a_c_box h3{ font-size: 26px;padding:0 0 10px 10px; border-bottom: 3px solid black;}
.a_c_box a{font-size: 16px;color:#555;font-weight:400}
.a_c_box{width: 100%; padding-left:1%; padding-right:2.5%}
.a_c_box .on a{ color:black;}
.a_c_box .a_c{padding:18px 20px; border-bottom:1px solid #ccc}

.img_c_box .img_c.on{ transition:all 1s; visibility:visible; position: inherit; opacity:1;}
.img_c_box .img_c{ transition:all 1s; position: absolute; top:0;left: 0; visibility:hidden; opacity:0;}



@media all and (max-width: 1600px) { 
	.slide_box { display:block}
	.img_c_box { width:100%}
	.img_c_box img { width:97%}
	.a_c_box { width:100%; padding-top:50px}

}


@media all and (max-width: 750px) { 
   .slide_box { padding-left:3%}

}