diff --git a/adm/board_form.php b/adm/board_form.php
index 0fd63b0f3..ec8676883 100644
--- a/adm/board_form.php
+++ b/adm/board_form.php
@@ -77,11 +77,11 @@ if (!isset($board['bo_mobile_subject'])) {
 }
 
 if (!isset($board['bo_use_captcha'])) {
-    sql_query(" ALTER TABLE `{$g5['board_table']}` ADD `bo_use_captcha` TINYINT NOT NULL DEFAULT '0' AFTER `bo_use_sns` ");
+    sql_query(" ALTER TABLE `{$g5['board_table']}` ADD `bo_use_captcha` TINYINT NOT NULL DEFAULT '0' AFTER `bo_use_sns` ", false);
 }
 
 if (!isset($board['bo_select_editor'])) {
-    sql_query(" ALTER TABLE `{$g5['board_table']}` ADD `bo_select_editor` VARCHAR(50) NOT NULL DEFAULT '' AFTER `bo_use_dhtml_editor` ");
+    sql_query(" ALTER TABLE `{$g5['board_table']}` ADD `bo_select_editor` VARCHAR(50) NOT NULL DEFAULT '' AFTER `bo_use_dhtml_editor` ", false);
 }
 
 run_event('adm_board_form_before', $board, $w);
diff --git a/adm/css/admin.css b/adm/css/admin.css
index 1f16bacdd..8d9e124c0 100644
--- a/adm/css/admin.css
+++ b/adm/css/admin.css
@@ -197,12 +197,14 @@ a.btn_submit{background:#ff4081;color:#fff}
 .btn_frmline{display:inline-block;background:#9eacc6;color:#fff;height:35px;border:0;border-radius:5px;padding:0 10px}
 a.btn_frmline{display:inline-block;background:#9eacc6;color:#fff;height:35px;line-height:33px;border-radius:5px;padding:0 10px;text-decoration:none  !important}
 .btn_ov01{display:inline-block;line-height:30px;height:30px;font-size:0.92em;vertical-align:top}
-.btn_ov01:after{display:block;visibility:hidden;clear :both;content:""}
 .btn_ov01 .ov_txt{float:left;background:#9eacc6;color:#fff;border-radius:5px 0 0 5px;padding:0 5px}
 .btn_ov01 .ov_num{float:left;background:#ededed;color:#666;border-radius:0 5px 5px 0;padding:0 5px}
 a.btn_ov02,a.ov_listall{display:inline-block;line-height:30px;height:30px;font-size:0.92em;background:#565e8c;color:#fff;vertical-align:top;border-radius:5px;padding:0 7px }
 a.btn_ov02:hover,a.ov_listall:hover{background:#3f51b5}
 
+.local_ov01.local_ov [data-tooltip-text]:hover {position:relative}
+.local_ov01.local_ov [data-tooltip-text]:hover:after{line-height:20px;background-color:#000;background-color:rgba(0,0,0,0.8);-webkit-box-shadow:0 0 3px 1px rgba(50,50,50,0.4);-moz-box-shadow:0 0 3px 1px rgba(50,50,50,0.4);box-shadow:0 0 3px 1px rgba(50,50,50,0.4);-webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px;color:#FFF;font-size:11px;content:attr(data-tooltip-text);white-space: pre;margin-bottom:10px;top:130%;left:0;padding:7px 12px;position:absolute;max-width:500px;word-wrap:break-word;z-index:9999}
+
 /*form*/
 .sound_only {display:inline-block !important;position:absolute;top:0;left:0;margin:0 !important;padding:0 !important;width:1px !important;height:1px !important;font-size:0;line-height:0;border:0 !important;overflow:hidden !important}
 .frm_input{height:35px;line-height:32px;border:1px solid #d5d5d5;}
diff --git a/adm/member_list.php b/adm/member_list.php
index be3aa7990..e8bcf4611 100644
--- a/adm/member_list.php
+++ b/adm/member_list.php
@@ -70,8 +70,8 @@ $colspan = 16;
 <div class="local_ov01 local_ov">
     <?php echo $listall ?>
     <span class="btn_ov01"><span class="ov_txt">총회원수 </span><span class="ov_num"> <?php echo number_format($total_count) ?>명 </span></span>
-    <a href="?sst=mb_intercept_date&amp;sod=desc&amp;sfl=<?php echo $sfl ?>&amp;stx=<?php echo $stx ?>" class="btn_ov01"> <span class="ov_txt">차단 </span><span class="ov_num"><?php echo number_format($intercept_count) ?>명</span></a>
-    <a href="?sst=mb_leave_date&amp;sod=desc&amp;sfl=<?php echo $sfl ?>&amp;stx=<?php echo $stx ?>" class="btn_ov01"> <span class="ov_txt">탈퇴  </span><span class="ov_num"><?php echo number_format($leave_count) ?>명</span></a>
+    <a href="?sst=mb_intercept_date&amp;sod=desc&amp;sfl=<?php echo $sfl ?>&amp;stx=<?php echo $stx ?>" class="btn_ov01" data-tooltip-text="차단된 순으로 정렬합니다.&#xa;전체 데이터를 출력합니다."> <span class="ov_txt">차단 </span><span class="ov_num"><?php echo number_format($intercept_count) ?>명</span></a>
+    <a href="?sst=mb_leave_date&amp;sod=desc&amp;sfl=<?php echo $sfl ?>&amp;stx=<?php echo $stx ?>" class="btn_ov01" data-tooltip-text="탈퇴된 순으로 정렬합니다.&#xa;전체 데이터를 출력합니다."> <span class="ov_txt">탈퇴  </span><span class="ov_num"><?php echo number_format($leave_count) ?>명</span></a>
 </div>
 
 <form id="fsearch" name="fsearch" class="local_sch01 local_sch" method="get">
diff --git a/bbs/download.php b/bbs/download.php
index 2b2aa1f2b..60e0a7dc2 100644
--- a/bbs/download.php
+++ b/bbs/download.php
@@ -100,7 +100,8 @@ if(preg_match("/[\xA1-\xFE][\xA1-\xFE]/", $file['bf_source'])){
 }
 */
 
-$original = urlencode($file['bf_source']);
+//$original = urlencode($file['bf_source']);
+$original = rawurlencode($file['bf_source']);
 
 @include_once($board_skin_path.'/download.tail.skin.php');
 
@@ -114,7 +115,8 @@ if(preg_match("/msie/i", $_SERVER['HTTP_USER_AGENT']) && preg_match("/5\.5/", $_
 } else if (preg_match("/Firefox/i", $_SERVER['HTTP_USER_AGENT'])){
     header("content-type: file/unknown");
     header("content-length: ".filesize($filepath));
-    header("content-disposition: attachment; filename=\"".basename($file['bf_source'])."\"");
+    //header("content-disposition: attachment; filename=\"".basename($file['bf_source'])."\"");
+    header("content-disposition: attachment; filename=\"".$original."\"");
     header("content-description: php generated data");
 } else {
     header("content-type: file/unknown");
diff --git a/bbs/qaview.php b/bbs/qaview.php
index 1b5c38227..1bdbd48f3 100644
--- a/bbs/qaview.php
+++ b/bbs/qaview.php
@@ -155,7 +155,8 @@ if(is_file($skin_file)) {
 
     for ($i=1; $i<=2; $i++) {
         if(preg_match("/\.({$config['cf_image_extension']})$/i", $view['qa_file'.$i])) {
-            $view['img_file'][] = '<a href="'.G5_BBS_URL.'/view_image.php?fn='.urlencode('/data/qa/'.$view['qa_file'.$i]).'" target="_blank" class="view_image"><img src="'.G5_DATA_URL.'/qa/'.$view['qa_file'.$i].'"></a>';
+            $attr_href = run_replace('thumb_view_image_href', G5_BBS_URL.'/view_image.php?fn='.urlencode('/'.G5_DATA_DIR.'/qa/'.$view['qa_file'.$i]), '/'.G5_DATA_DIR.'/qa/'.$view['qa_file'.$i], '', '', '', '');
+            $view['img_file'][] = '<a href="'.$attr_href.'" target="_blank" class="view_image"><img src="'.G5_DATA_URL.'/qa/'.$view['qa_file'.$i].'"></a>';
             $view['img_count']++;
             continue;
         }
diff --git a/config.php b/config.php
index 8fc0eab37..1c54cdc90 100644
--- a/config.php
+++ b/config.php
@@ -5,7 +5,7 @@
 ********************/
 
 define('G5_VERSION', '그누보드5');
-define('G5_GNUBOARD_VER', '5.4.2.8');
+define('G5_GNUBOARD_VER', '5.4.2.9');
 
 // 이 상수가 정의되지 않으면 각각의 개별 페이지는 별도로 실행될 수 없음
 define('_GNUBOARD_', true);
diff --git a/lib/common.lib.php b/lib/common.lib.php
index 363da162c..5ea5bfa80 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -1403,7 +1403,8 @@ function view_file_link($file, $width, $height, $content='')
         $attr = '';
 
     if (preg_match("/\.({$config['cf_image_extension']})$/i", $file)) {
-        $img = '<a href="'.G5_BBS_URL.'/view_image.php?bo_table='.$board['bo_table'].'&amp;fn='.urlencode($file).'" target="_blank" class="view_image">';
+        $attr_href = run_replace('thumb_view_image_href', G5_BBS_URL.'/view_image.php?bo_table='.$board['bo_table'].'&amp;fn='.urlencode($file), $file, $board['bo_table'], $width, $height, $content);
+        $img = '<a href="'.$attr_href.'" target="_blank" class="view_image">';
         $img .= '<img src="'.G5_DATA_URL.'/file/'.$board['bo_table'].'/'.urlencode($file).'" alt="'.$content.'" '.$attr.'>';
         $img .= '</a>';
 
diff --git a/lib/thumbnail.lib.php b/lib/thumbnail.lib.php
index d534edef1..5d190f507 100644
--- a/lib/thumbnail.lib.php
+++ b/lib/thumbnail.lib.php
@@ -198,11 +198,12 @@ function get_view_thumbnail($contents, $thumb_width=0)
             } else {
                 $thumb_tag = '<img src="'.G5_URL.str_replace($filename, $thumb_file, $data_path).'" alt="'.$alt.'"/>';
             }
-
+            
             // $img_tag에 editor 경로가 있으면 원본보기 링크 추가
             if(strpos($img_tag, G5_DATA_DIR.'/'.G5_EDITOR_DIR) && preg_match("/\.({$config['cf_image_extension']})$/i", $filename)) {
                 $imgurl = str_replace(G5_URL, "", $src);
-                $thumb_tag = '<a href="'.G5_BBS_URL.'/view_image.php?fn='.urlencode($imgurl).'" target="_blank" class="view_image">'.$thumb_tag.'</a>';
+                $attr_href = run_replace('thumb_view_image_href', G5_BBS_URL.'/view_image.php?fn='.urlencode($imgurl), $filename, '', $width, $height, $alt);
+                $thumb_tag = '<a href="'.$attr_href.'" target="_blank" class="view_image">'.$thumb_tag.'</a>';
             }
 
             $contents = str_replace($img_tag, $thumb_tag, $contents);
diff --git a/mobile/skin/board/gallery/list.skin.php b/mobile/skin/board/gallery/list.skin.php
index 843aa83c8..2a7ffb6fd 100644
--- a/mobile/skin/board/gallery/list.skin.php
+++ b/mobile/skin/board/gallery/list.skin.php
@@ -99,7 +99,7 @@ add_stylesheet('<link rel="stylesheet" href="'.$board_skin_url.'/style.css">', 0
                         $img_content = '<span class="no_img"><i class="fa fa-picture-o" aria-hidden="true"></i></span>';
                     }
 
-                    echo $img_content;
+                    echo run_replace('thumb_image_tag', $img_content, $thumb);
                 }
                 ?>
                 </a>
diff --git a/mobile/skin/board/gallery/style.css b/mobile/skin/board/gallery/style.css
index 3b4ed8f56..a1a7762b2 100644
--- a/mobile/skin/board/gallery/style.css
+++ b/mobile/skin/board/gallery/style.css
@@ -158,7 +158,7 @@
 #bo_gall .gall_li_wr {position:relative;}
 #bo_gall .gall_li_chk {display:inline-block;position:absolute;top:10px;left:10px}
 #bo_gall .gall_li:nth-child(2n+1) {clear:both}
-#bo_gall .gall_li .gall_img img{width:100%;height:auto}
+#bo_gall .gall_li .gall_img img, #bo_gall .gall_li .gall_img video{width:100%;height:auto}
 #bo_gall .gall_li .gall_img .no_img,
 #bo_gall .gall_li .gall_notice {display:block;background:#eaeaea;color:#d0d0d0;font-size:3em;text-align:center;padding:25% 0}
 
diff --git a/mobile/skin/latest/basic/latest.skin.php b/mobile/skin/latest/basic/latest.skin.php
index 591befd3b..434bbc945 100644
--- a/mobile/skin/latest/basic/latest.skin.php
+++ b/mobile/skin/latest/basic/latest.skin.php
@@ -38,7 +38,7 @@ $is_show_next_prev = ($list_count > 4) ? 1 : 0;
                 //echo $list[$i]['icon_reply']." ";
                 
                 if( $img_content ){
-                    echo "<a href=\"".$list[$i]['href']."\" class=\"lt_thumb\">".$img_content."</a> ";
+                    echo "<a href=\"".$list[$i]['href']."\" class=\"lt_thumb\">".run_replace('thumb_image_tag', $img_content, $thumb)."</a> ";
                 }
                 
                 echo "<a href=\"".$list[$i]['href']."\" class=\"lt_tit\">";
diff --git a/mobile/skin/latest/basic/style.css b/mobile/skin/latest/basic/style.css
index 0762c0372..b5730bdb2 100644
--- a/mobile/skin/latest/basic/style.css
+++ b/mobile/skin/latest/basic/style.css
@@ -9,7 +9,7 @@
 .lt ul li:after {display:block;visibility:hidden;clear:both;content:""}
 .lt ul li:hover a.lt_tit {color:#3a8afd}
 .lt .lt_thumb {display:inline-block;float:left;margin-right:10px}
-.lt .lt_thumb img {width:138px;height:auto;overflow:hidden}
+.lt .lt_thumb img, .lt .lt_thumb video{width:138px;height:auto;overflow:hidden}
 .lt .lt_tit {display:block;font-size:1.2em;font-weight:bold;max-height:60px;overflow:hidden;padding-bottom:10px}
 .lt .lt_info {display:inline-block;position:relative;line-height:20px;color:#828282;font-size:0.925em;vertical-align:top}
 .lt .lt_date {color:#828282}
diff --git a/plugin/kcaptcha/kcaptcha.lib.php b/plugin/kcaptcha/kcaptcha.lib.php
index 50a3cef69..fc897b5a1 100644
--- a/plugin/kcaptcha/kcaptcha.lib.php
+++ b/plugin/kcaptcha/kcaptcha.lib.php
@@ -50,13 +50,13 @@ class KCAPTCHA{
             $transparent = (imagecolorat($font, $i, 0) >> 24) == 127;
 
             if(!$reading_symbol && !$transparent){
-                $font_metrics[$alphabet{$symbol}]=array('start'=>$i);
+                $font_metrics[$alphabet[$symbol]]=array('start'=>$i);
                 $reading_symbol=true;
                 continue;
             }
 
             if($reading_symbol && $transparent){
-                $font_metrics[$alphabet{$symbol}]['end']=$i;
+                $font_metrics[$alphabet[$symbol]]['end']=$i;
                 $reading_symbol=false;
                 $symbol++;
                 continue;
@@ -75,7 +75,7 @@ class KCAPTCHA{
         $odd=mt_rand(0,1);
         if($odd==0) $odd=-1;
         for($i=0;$i<$length;$i++){
-            $m=$font_metrics[$this->keystring{$i}];
+            $m=$font_metrics[$this->keystring[$i]];
 
             $y=(($i%2)*$fluctuation_amplitude - $fluctuation_amplitude/2)*$odd
                 + mt_rand(-round($fluctuation_amplitude/3), round($fluctuation_amplitude/3))
diff --git a/skin/board/gallery/list.skin.php b/skin/board/gallery/list.skin.php
index 8a50868fa..a7dea635f 100644
--- a/skin/board/gallery/list.skin.php
+++ b/skin/board/gallery/list.skin.php
@@ -120,7 +120,7 @@ add_stylesheet('<link rel="stylesheet" href="'.$board_skin_url.'/style.css">', 0
                                 $img_content = '<span class="no_image">no image</span>';
                             }
 
-                            echo $img_content;
+                            echo run_replace('thumb_image_tag', $img_content, $thumb);
                         }
                          ?>
                         </a>
diff --git a/skin/board/gallery/style.css b/skin/board/gallery/style.css
index c58c86801..e41dc44d1 100644
--- a/skin/board/gallery/style.css
+++ b/skin/board/gallery/style.css
@@ -126,7 +126,7 @@ box-shadow:inset 0 2px 5px rgb(33, 135, 202)}
 #bo_gall .gall_href a:link, #bo_gall .gall_href a:focus, #bo_gall .gall_href a:hover {text-decoration:none}
 #bo_gall .gall_img {border-bottom:1px solid #eee;text-align:center;height:200px;max-height:200px;overflow:hidden}
 #bo_gall .gall_img a,#bo_gall .gall_img .no_image,#bo_gall .gall_img .is_notice {display:block}
-#bo_gall .gall_img img {max-width:100%;height:auto !important}
+#bo_gall .gall_img img, #bo_gall .gall_img video {max-width:100%;height:auto !important}
 #bo_gall .gall_img span {display:inline-block;background:#eaeaea;text-align:center;line-height:200px;text-transform:uppercase;font-weight:bold;font-size:1.25em;color:#777}
 
 #bo_gall .gall_text_href {margin:10px 0}
diff --git a/skin/latest/pic_block/latest.skin.php b/skin/latest/pic_block/latest.skin.php
index dcd824410..58b7f4519 100644
--- a/skin/latest/pic_block/latest.skin.php
+++ b/skin/latest/pic_block/latest.skin.php
@@ -25,7 +25,7 @@ $list_count = (is_array($list) && $list) ? count($list) : 0;
     $img_content = '<img src="'.$img.'" alt="'.$thumb['alt'].'" >';
     ?>
         <li class="gallery_li">
-            <a href="<?php echo $list[$i]['href'] ?>" class="lt_img"><?php echo $img_content; ?></a>
+            <a href="<?php echo $list[$i]['href'] ?>" class="lt_img"><?php echo run_replace('thumb_image_tag', $img_content, $thumb); ?></a>
             <?php
             if ($list[$i]['icon_secret']) echo "<i class=\"fa fa-lock\" aria-hidden=\"true\"></i><span class=\"sound_only\">비밀글</span> ";
 
diff --git a/skin/latest/pic_block/style.css b/skin/latest/pic_block/style.css
index a7c8601fe..b76196799 100644
--- a/skin/latest/pic_block/style.css
+++ b/skin/latest/pic_block/style.css
@@ -12,7 +12,7 @@
 .pic_lt li {float:left;width:25%;padding:0 10px}
 .pic_lt li.gallery_li:nth-child(4n+1) {clear: both!important}
 .pic_lt li .lt_img {margin:5px 0;display:block}
-.pic_lt li .lt_img img {width:100%;height:auto}
+.pic_lt li .lt_img img, .pic_lt li .lt_img video {width:100%;height:auto}
 .pic_lt li a:hover {color:#a22121}
 .pic_lt li .fa-heart {color:#ff0000}
 .pic_lt li .fa-lock {display:inline-block;line-height:14px;width:16px;font-size:0.833em;color:#4f818c;background:#cbe3e8;text-align:center;border-radius:2px;font-size:12px;border:1px solid #cbe3e8;vertical-align:middle}
diff --git a/skin/latest/pic_list/latest.skin.php b/skin/latest/pic_list/latest.skin.php
index 1a8a08ed4..50ad31951 100644
--- a/skin/latest/pic_list/latest.skin.php
+++ b/skin/latest/pic_list/latest.skin.php
@@ -27,7 +27,7 @@ $list_count = (is_array($list) && $list) ? count($list) : 0;
                 $thumb['alt'] = '이미지가 없습니다.';
             }
             $img_content = '<img src="'.$img.'" alt="'.$thumb['alt'].'" >';
-            $img_link_html = '<a href="'.$list[$i]['href'].'" class="lt_img" >'.$img_content.'</a>';
+            $img_link_html = '<a href="'.$list[$i]['href'].'" class="lt_img" >'.run_replace('thumb_image_tag', $img_content, $thumb).'</a>';
         }
     ?>
         <li>
diff --git a/skin/latest/pic_list/style.css b/skin/latest/pic_list/style.css
index 9c8db93f2..b263aa2f0 100644
--- a/skin/latest/pic_list/style.css
+++ b/skin/latest/pic_list/style.css
@@ -12,7 +12,7 @@
 .pic_li_lt li {border-bottom:1px solid #e5ecee;margin-bottom:10px}
 .pic_li_lt li .lt_img {display:none}
 .pic_li_lt li:first-child .lt_img {display:block;margin:0 0 10px;display:block}
-.pic_li_lt li:first-child .lt_img img {width:100%;height:auto}
+.pic_li_lt li:first-child .lt_img img, .pic_li_lt li .lt_img video {width:100%;height:auto}
 .pic_li_lt li .pic_li_tit {font-weight:bold;font-size:1.2em;line-height:20px;vertical-align:middle}
 
 .pic_li_lt li .fa-heart {color:#ff0000}
diff --git a/theme/basic/mobile/skin/board/gallery/list.skin.php b/theme/basic/mobile/skin/board/gallery/list.skin.php
index 843aa83c8..2a7ffb6fd 100644
--- a/theme/basic/mobile/skin/board/gallery/list.skin.php
+++ b/theme/basic/mobile/skin/board/gallery/list.skin.php
@@ -99,7 +99,7 @@ add_stylesheet('<link rel="stylesheet" href="'.$board_skin_url.'/style.css">', 0
                         $img_content = '<span class="no_img"><i class="fa fa-picture-o" aria-hidden="true"></i></span>';
                     }
 
-                    echo $img_content;
+                    echo run_replace('thumb_image_tag', $img_content, $thumb);
                 }
                 ?>
                 </a>
diff --git a/theme/basic/mobile/skin/board/gallery/style.css b/theme/basic/mobile/skin/board/gallery/style.css
index 3b4ed8f56..a1a7762b2 100644
--- a/theme/basic/mobile/skin/board/gallery/style.css
+++ b/theme/basic/mobile/skin/board/gallery/style.css
@@ -158,7 +158,7 @@
 #bo_gall .gall_li_wr {position:relative;}
 #bo_gall .gall_li_chk {display:inline-block;position:absolute;top:10px;left:10px}
 #bo_gall .gall_li:nth-child(2n+1) {clear:both}
-#bo_gall .gall_li .gall_img img{width:100%;height:auto}
+#bo_gall .gall_li .gall_img img, #bo_gall .gall_li .gall_img video{width:100%;height:auto}
 #bo_gall .gall_li .gall_img .no_img,
 #bo_gall .gall_li .gall_notice {display:block;background:#eaeaea;color:#d0d0d0;font-size:3em;text-align:center;padding:25% 0}
 
diff --git a/theme/basic/mobile/skin/latest/basic/latest.skin.php b/theme/basic/mobile/skin/latest/basic/latest.skin.php
index 591befd3b..434bbc945 100644
--- a/theme/basic/mobile/skin/latest/basic/latest.skin.php
+++ b/theme/basic/mobile/skin/latest/basic/latest.skin.php
@@ -38,7 +38,7 @@ $is_show_next_prev = ($list_count > 4) ? 1 : 0;
                 //echo $list[$i]['icon_reply']." ";
                 
                 if( $img_content ){
-                    echo "<a href=\"".$list[$i]['href']."\" class=\"lt_thumb\">".$img_content."</a> ";
+                    echo "<a href=\"".$list[$i]['href']."\" class=\"lt_thumb\">".run_replace('thumb_image_tag', $img_content, $thumb)."</a> ";
                 }
                 
                 echo "<a href=\"".$list[$i]['href']."\" class=\"lt_tit\">";
diff --git a/theme/basic/mobile/skin/latest/basic/style.css b/theme/basic/mobile/skin/latest/basic/style.css
index 0762c0372..57c7e62f6 100644
--- a/theme/basic/mobile/skin/latest/basic/style.css
+++ b/theme/basic/mobile/skin/latest/basic/style.css
@@ -9,7 +9,7 @@
 .lt ul li:after {display:block;visibility:hidden;clear:both;content:""}
 .lt ul li:hover a.lt_tit {color:#3a8afd}
 .lt .lt_thumb {display:inline-block;float:left;margin-right:10px}
-.lt .lt_thumb img {width:138px;height:auto;overflow:hidden}
+.lt .lt_thumb img, .lt .lt_thumb video {width:138px !important;height:auto;overflow:hidden}
 .lt .lt_tit {display:block;font-size:1.2em;font-weight:bold;max-height:60px;overflow:hidden;padding-bottom:10px}
 .lt .lt_info {display:inline-block;position:relative;line-height:20px;color:#828282;font-size:0.925em;vertical-align:top}
 .lt .lt_date {color:#828282}
diff --git a/theme/basic/skin/board/gallery/list.skin.php b/theme/basic/skin/board/gallery/list.skin.php
index 8a50868fa..a7dea635f 100644
--- a/theme/basic/skin/board/gallery/list.skin.php
+++ b/theme/basic/skin/board/gallery/list.skin.php
@@ -120,7 +120,7 @@ add_stylesheet('<link rel="stylesheet" href="'.$board_skin_url.'/style.css">', 0
                                 $img_content = '<span class="no_image">no image</span>';
                             }
 
-                            echo $img_content;
+                            echo run_replace('thumb_image_tag', $img_content, $thumb);
                         }
                          ?>
                         </a>
diff --git a/theme/basic/skin/board/gallery/style.css b/theme/basic/skin/board/gallery/style.css
index c58c86801..e41dc44d1 100644
--- a/theme/basic/skin/board/gallery/style.css
+++ b/theme/basic/skin/board/gallery/style.css
@@ -126,7 +126,7 @@ box-shadow:inset 0 2px 5px rgb(33, 135, 202)}
 #bo_gall .gall_href a:link, #bo_gall .gall_href a:focus, #bo_gall .gall_href a:hover {text-decoration:none}
 #bo_gall .gall_img {border-bottom:1px solid #eee;text-align:center;height:200px;max-height:200px;overflow:hidden}
 #bo_gall .gall_img a,#bo_gall .gall_img .no_image,#bo_gall .gall_img .is_notice {display:block}
-#bo_gall .gall_img img {max-width:100%;height:auto !important}
+#bo_gall .gall_img img, #bo_gall .gall_img video {max-width:100%;height:auto !important}
 #bo_gall .gall_img span {display:inline-block;background:#eaeaea;text-align:center;line-height:200px;text-transform:uppercase;font-weight:bold;font-size:1.25em;color:#777}
 
 #bo_gall .gall_text_href {margin:10px 0}
diff --git a/theme/basic/skin/latest/pic_block/latest.skin.php b/theme/basic/skin/latest/pic_block/latest.skin.php
index 791e2b48b..2682480e0 100644
--- a/theme/basic/skin/latest/pic_block/latest.skin.php
+++ b/theme/basic/skin/latest/pic_block/latest.skin.php
@@ -25,7 +25,7 @@ $list_count = (is_array($list) && $list) ? count($list) : 0;
     $img_content = '<img src="'.$img.'" alt="'.$thumb['alt'].'" >';
     ?>
         <li class="galley_li">
-            <a href="<?php echo $list[$i]['href'] ?>" class="lt_img"><?php echo $img_content; ?></a>
+            <a href="<?php echo $list[$i]['href'] ?>" class="lt_img"><?php echo run_replace('thumb_image_tag', $img_content, $thumb); ?></a>
             <?php
             if ($list[$i]['icon_secret']) echo "<i class=\"fa fa-lock\" aria-hidden=\"true\"></i><span class=\"sound_only\">비밀글</span> ";
 
diff --git a/theme/basic/skin/latest/pic_block/style.css b/theme/basic/skin/latest/pic_block/style.css
index 6b5dbb8af..fe377172b 100644
--- a/theme/basic/skin/latest/pic_block/style.css
+++ b/theme/basic/skin/latest/pic_block/style.css
@@ -12,7 +12,7 @@
 .pic_lt li {float:left;width:25%;padding:0 10px}
 .pic_lt li.galley_li:nth-child(4n+1) {clear: both!important}
 .pic_lt li .lt_img {margin:5px 0;display:block}
-.pic_lt li .lt_img img {width:100%;height:auto}
+.pic_lt li .lt_img img, .pic_lt li .lt_img video{width:100%;height:auto}
 .pic_lt li a:hover {color:#a22121}
 .pic_lt li .fa-heart {color:#ff0000}
 .pic_lt li .fa-lock {display:inline-block;line-height:14px;width:16px;font-size:0.833em;color:#4f818c;background:#cbe3e8;text-align:center;border-radius:2px;font-size:12px;border:1px solid #cbe3e8;vertical-align:middle}
diff --git a/theme/basic/skin/latest/pic_list/latest.skin.php b/theme/basic/skin/latest/pic_list/latest.skin.php
index 1a8a08ed4..50ad31951 100644
--- a/theme/basic/skin/latest/pic_list/latest.skin.php
+++ b/theme/basic/skin/latest/pic_list/latest.skin.php
@@ -27,7 +27,7 @@ $list_count = (is_array($list) && $list) ? count($list) : 0;
                 $thumb['alt'] = '이미지가 없습니다.';
             }
             $img_content = '<img src="'.$img.'" alt="'.$thumb['alt'].'" >';
-            $img_link_html = '<a href="'.$list[$i]['href'].'" class="lt_img" >'.$img_content.'</a>';
+            $img_link_html = '<a href="'.$list[$i]['href'].'" class="lt_img" >'.run_replace('thumb_image_tag', $img_content, $thumb).'</a>';
         }
     ?>
         <li>
diff --git a/theme/basic/skin/latest/pic_list/style.css b/theme/basic/skin/latest/pic_list/style.css
index 9c8db93f2..b263aa2f0 100644
--- a/theme/basic/skin/latest/pic_list/style.css
+++ b/theme/basic/skin/latest/pic_list/style.css
@@ -12,7 +12,7 @@
 .pic_li_lt li {border-bottom:1px solid #e5ecee;margin-bottom:10px}
 .pic_li_lt li .lt_img {display:none}
 .pic_li_lt li:first-child .lt_img {display:block;margin:0 0 10px;display:block}
-.pic_li_lt li:first-child .lt_img img {width:100%;height:auto}
+.pic_li_lt li:first-child .lt_img img, .pic_li_lt li .lt_img video {width:100%;height:auto}
 .pic_li_lt li .pic_li_tit {font-weight:bold;font-size:1.2em;line-height:20px;vertical-align:middle}
 
 .pic_li_lt li .fa-heart {color:#ff0000}