diff --git a/htdocs/projet/activity/perday.php b/htdocs/projet/activity/perday.php
index 4f30054155a..c191b3baeaa 100644
--- a/htdocs/projet/activity/perday.php
+++ b/htdocs/projet/activity/perday.php
@@ -431,7 +431,7 @@ $nav .= dol_print_date(dol_mktime(0, 0, 0, $month, $day, $year), "%A").' ';
 $nav .= " <span id=\"month_name\">".dol_print_date(dol_mktime(0, 0, 0, $month, $day, $year), "day")." </span>\n";
 $nav .= '<a class="inline-block valignmiddle" href="?year='.$next_year."&month=".$next_month."&day=".$next_day.$param.'">'.img_next($langs->trans("Next"))."</a>\n";
 $nav .= ' '.$form->selectDate(-1, '', 0, 0, 2, "addtime", 1, 1).' ';
-$nav .= ' <button type="submit" name="button_search_x" value="x" class="bordertransp"><span class="fa fa-search"></span></button>';
+$nav .= ' <button type="submit" name="button_search_x" value="x" class="bordertransp nobordertransp button_search"><span class="fa fa-search"></span></button>';
 
 $picto = 'clock';
 
diff --git a/htdocs/projet/activity/permonth.php b/htdocs/projet/activity/permonth.php
index 156080eefb3..79ee8c6172e 100644
--- a/htdocs/projet/activity/permonth.php
+++ b/htdocs/projet/activity/permonth.php
@@ -347,7 +347,7 @@ $nav = '<a class="inline-block valignmiddle" href="?year='.$prev_year."&month=".
 $nav .= " <span id=\"month_name\">".dol_print_date(dol_mktime(0, 0, 0, $month, 1, $year), "%Y").", ".$langs->trans(date('F', mktime(0, 0, 0, $month, 10)))." </span>\n";
 $nav .= '<a class="inline-block valignmiddle" href="?year='.$next_year."&month=".$next_month."&day=".$next_day.$param.'">'.img_next($langs->trans("Next"))."</a>\n";
 $nav .= ' '.$form->selectDate(-1, '', 0, 0, 2, "addtime", 1, 1).' ';
-$nav .= ' <button type="submit" name="button_search_x" value="x" class="bordertransp"><span class="fa fa-search"></span></button>';
+$nav .= ' <button type="submit" name="button_search_x" value="x" class="bordertransp nobordertransp button_search_x"><span class="fa fa-search"></span></button>';
 
 $picto = 'clock';
 
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index fdc2e9db2d7..3c05847a79c 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -394,7 +394,7 @@ textarea:focus {
 	/* v6 box-shadow: 0 0 4px #8091BF; */
 	border: 1px solid #aaa !important;
 }
-input:focus, textarea:focus, button:focus, select:focus {
+input:focus, textarea:focus, button:focus:not(.button_search_x):not(.button_search):not(.button_removefilter), select:focus {
 	border-bottom: 1px solid #666;
 }
 
@@ -4967,7 +4967,7 @@ span[phptag] {
 	color: #000 !important;
 	text-shadow: none;
 }
-.bordertransp {
+.bordertransp:not(.nobordertransp) {
 	background-color: transparent;
 	background-image: none;
 	border: 1px solid #aaa;