diff --git a/apps/client/src/views/teleprompter/Teleprompter.scss b/apps/client/src/views/teleprompter/Teleprompter.scss
index a3a24744a..3c589c5a3 100644
--- a/apps/client/src/views/teleprompter/Teleprompter.scss
+++ b/apps/client/src/views/teleprompter/Teleprompter.scss
@@ -1,15 +1,25 @@
 @use '@/theme/viewerDefs' as *;
 
 /**
- * The --tp-* custom properties are all set by Teleprompter.tsx from the parsed
+ * The --tp-* custom properties come from Teleprompter.tsx, set from the parsed
  * view options, so they carry no fallbacks here. A fallback would be a second
- * copy of a default that nothing reaches and nothing keeps in step.
+ * copy of a default that nothing reaches and nothing keeps in step. The one
+ * exception is --tp-font-size, derived below from the size the view was given.
  */
 
 .teleprompter {
   --tp-flip-x: 1;
   --tp-flip-y: 1;
 
+  /**
+   * The configured size is a ceiling rather than a fixed value. A prompter set
+   * up on a stage screen keeps its size in the link it is shared as, and the
+   * same link opened on a phone would otherwise leave three words to a line.
+   * The cap only bites below about 650px of viewport, so a rig set up on
+   * anything laptop sized or larger reads exactly what it was given.
+   */
+  --tp-font-size: min(var(--tp-configured-font-size), 8vw);
+
   position: relative;
   height: 100dvh;
   width: 100%;
@@ -183,7 +193,16 @@
   position: absolute;
   bottom: min(2vh, 16px);
   left: 50%;
-  transform: translateX(-50%);
+
+  /**
+   * Applying the view's own flip a second time cancels it, which keeps the
+   * transport the right way round on a mirrored rig. The flip exists to
+   * pre-compensate for a beam splitter, so it belongs to the script; the
+   * operator reads these buttons off the screen itself, and mirrored icons in
+   * a mirrored order are unusable. The navigation menu and the help dialog are
+   * already outside the flip for the same reason, this is the odd one in.
+   */
+  transform: translateX(-50%) scale(var(--tp-flip-x), var(--tp-flip-y));
 
   display: flex;
   align-items: center;
diff --git a/apps/client/src/views/teleprompter/Teleprompter.tsx b/apps/client/src/views/teleprompter/Teleprompter.tsx
index 19f43ef5e..a4fd98494 100644
--- a/apps/client/src/views/teleprompter/Teleprompter.tsx
+++ b/apps/client/src/views/teleprompter/Teleprompter.tsx
@@ -142,7 +142,7 @@ function Teleprompter({ rundown, rundownMetadata, customFields }: TeleprompterDa
   const effectiveFlip = composeFlip(live.flipH, live.flipV, isMirrored);
 
   const viewStyles = {
-    '--tp-font-size': `${live.fontSize}px`,
+    '--tp-configured-font-size': `${live.fontSize}px`,
     '--tp-line-height': options.lineHeight,
     '--tp-text-width': `${options.textWidth}%`,
     // unitless, so the stylesheet can scale it by 1% against the view height for