bootstrap-bbs.css 增加

@media (max-width: 770px) {
.spic {width:100%;margin-bottom:1rem;box-shadow:2px 2px 3px rgba(0, 0, 0, 0.2);display:block;}
.media {display:block;}
.spic img{width:100%;height:150px;margin:0 auto;border-radius:0.25rem;}
.nav_botton{display:block !important}

}
@media (min-width: 771px) {
.spic {width:9rem;height:6rem;margin-right:1rem;box-shadow:2px 2px 3px rgba(0, 0, 0, 0.2)}
.spic img{width:100%;border-radius:0.25rem;margin:0 auto;height:100%;cursor: pointer; transition: all 0.4s;}
.spic img:hover{box-shadow:0px 2px 6px rgba(0, 0, 0, 0.5);transform: scale(1.2);}
.nav_botton{display:none !important}
}
@media (max-width: 992px) {
.card-thread .card-body .message{padding:1rem !important;}
}
/*底部浮动NAV*/
.footer_nav{position:fixed;z-index:9999;bottom:0;width:100%;height:4rem;border-top: 1px solid #efefef;background-color:#fdfdfd;}
.fnli  {float:left;width:25%;position:relative;text-align:center;margin-top:0.25rem}
.fnnav-gate{position:fixed;z-index:9999;bottom:4rem;width:100%;background-color:#fefefe;border: 1px solid #f1f1f1;left:0}
.fnnav-gate ul {list-style:none;}
.fnnav-gate li {list-style-type:none;}
.fnlstyle{height:3rem;line-height:4rem;text-align:left;}
.fnlastyle{display:block;}

在thread_list.inc.htm 去掉

<a href="<?php echo url("user-$_thread[uid]");?>" tabindex="-1" class="ml-1 mt-1 mr-3">
							<img class="avatar-3" src="<?php echo $_thread['user_avatar_url'];?>">
						</a>

其他文件备份