diff --git a/chrome/non_floating_sharp_tabs.css b/chrome/non_floating_sharp_tabs.css
index cb1e44f..30b926c 100644
--- a/chrome/non_floating_sharp_tabs.css
+++ b/chrome/non_floating_sharp_tabs.css
@@ -83,11 +83,12 @@ See the above repository for updates as well as full license text. */
 }
 /* Photon-like tab on hover animation for the top line */
 @keyframes tab-line-anim{ from{ margin-inline: 20px } to { margin-inline: 0 } }
-.tab-background::before{ animation: tab-line-anim 160ms }
+
+.tab-stack:hover > .tab-background::before{ animation: tab-line-anim 160ms }
 
 /* Disable animation for selected and pinned tabs */
 .tabbrowser-tab[pinned] > .tab-stack > .tab-background::before,
-.tab-background[selected]{ animation: none }
+.tab-background[selected]::before{ animation: none !important }
 
 /* moves context-line to the bottom */
 .tab-context-line{ -moz-box-ordinal-group: 2; margin-inline: 10px !important; }
\ No newline at end of file