better sneexy page styling, misskey iframe improvements

_includes/styles/base/navbar.css

@@ -296,7 +296,7 @@
 
 /* modify widths and spacing depending on the size of the display */
 @media screen and (max-width: 35rem) {
-    html:not(:has(.navbar.sneexy)) {
+    html:not(:has([sneexy-page])) {
         .navbar {
             .nav-desktop {
                 display: none !important;

_includes/styles/pages/sneexy.css

@@ -9,7 +9,7 @@
 /  ~sneexy - breeeep! my page! slooosh~ */
 
 /* my page has goop in html to set goopy colors */
-html:has(article[sneexy-page]) {
+html:has([sneexy-page]) {
     --accent: light-dark(#00d131, #65ff88) !important;
 
     article#sneexy window-contents {
@@ -100,6 +100,7 @@ html:has(article[sneexy-page]) {
                     overflow-y: scroll;
                     width: 25rem;
                     border-radius: .5rem;
+                    border: solid .15rem var(--border);
                 }
             }
         }