SeaText Logo Behavior on Mobile vs Desktop in Tilda: Responsive Differences Explained

The SeaText logo behaves identically on mobile and desktop in Tilda because it loads the same SVG asset regardless of viewport. SeaText's JavaScript injection does not swap logo files or apply device-specific logic. If the logo disappears, shifts, or resizes differently on mobile, the cause is your Tilda project's CSS media queries, block visibility settings, or the container block's responsive configuration — not SeaText itself.

Criterion	Desktop	Mobile	Takeaway
Logo asset served	Same SVG from SeaText CDN	Same SVG from SeaText CDN	No device-specific asset switching occurs.
Default visibility	Visible unless hidden by CSS	Visible unless hidden by CSS	Both viewports show the logo by default.
Size control	Set via SeaText dashboard or container CSS	Inherits desktop size unless overridden by media queries	Use CSS media queries to adjust size per breakpoint.
Positioning	Determined by injection point (HEAD or block T123)	Same injection point; Tilda may reflow container	Tilda's grid reflow can shift the logo wrapper.
Hiding on mobile	Requires explicit CSS display:none at desktop breakpoint	Achieved via Tilda block visibility or @media (max-width: 980px)	Tilda's "Block Visibility on Devices" is the no-code method.
Animation/transition	Runs if SeaText script initializes	Runs if SeaText script initializes	Script loads on both; no mobile-specific suppression.

Why the Logo Looks the Same on Both Viewports

SeaText injects a single JavaScript snippet into your Tilda site. That script fetches one SVG logo from SeaText's CDN and renders it inside a wrapper element. The script does not contain logic to detect screen width and swap assets. Therefore, the logo file, its vector data, and its intrinsic dimensions are identical on every device.

Tilda's responsive engine then takes over. It applies your project's global styles, block-level visibility rules, and any custom CSS you added. If the logo appears smaller, hidden, or repositioned on mobile, it is because Tilda's CSS cascade or block settings modified the wrapper — not because SeaText delivered a different logo.

How Tilda's Responsive System Affects the SeaText Logo

Tilda handles responsiveness in two ways: automatic adaptive scaling of standard blocks and the "Block Visibility on Devices" setting for granular control. When you paste the SeaText code into the global HEAD field (Site Settings → Edit code inside HEAD tag), the logo wrapper becomes part of the page's global chrome. Tilda does not automatically hide global HEAD injections on mobile.

If you instead use the per-page method — adding a T123 HTML block on a specific page — that block obeys Tilda's block visibility rules. You can open the block's settings, scroll to "Visibility on Devices," and uncheck "Mobile" to hide the logo only on phones. This is the cleanest no-code way to suppress the logo on mobile without writing CSS.

Controlling Logo Size Across Breakpoints

The SeaText dashboard lets you set a base logo size. That size applies everywhere unless you override it with CSS. To make the logo smaller on mobile, add a media query to your Tilda custom CSS field (Site Settings → Custom CSS):

@media (max-width: 980px) {
  .seatext-logo-wrapper svg { width: 32px; height: auto; }
}

Replace .seatext-logo-wrapper with the actual wrapper class SeaText uses (inspect the element in browser dev tools). This keeps the desktop size intact while scaling down on viewports narrower than 980px — Tilda's default tablet breakpoint.

Position Shifts Caused by Tilda's Grid Reflow

Tilda rearranges blocks on mobile: columns stack, padding changes, and fixed-position elements may shift. If your SeaText logo sits inside a header block that changes from horizontal to hamburger menu on mobile, the logo's visual position will move accordingly. This is expected Tilda behavior.

To keep the logo in a consistent spot, inject the SeaText code into a block that does not reflow — for example, a Zero Block with fixed positioning — or use custom CSS to force a fixed position on mobile:

@media (max-width: 980px) {
  .seatext-logo-wrapper { position: fixed; top: 16px; left: 16px; z-index: 9999; }
}

Test thoroughly; fixed positioning can overlap Tilda's mobile menu.

Hiding the Logo on Mobile: Two Practical Methods

Method 1: Tilda Block Visibility (No Code)

1. Edit the page where you added the T123 HTML block for SeaText.
2. Click the block's settings gear icon.
3. Find "Visibility on Devices" (sometimes under "Advanced").
4. Uncheck "Mobile". Save and publish.

This removes the entire block — including the SeaText logo — from the mobile DOM. The logo still loads on desktop.

Method 2: Custom CSS Media Query

If the logo is injected globally via HEAD, you cannot use block visibility. Instead, add this to Site Settings → Custom CSS:

@media (max-width: 980px) {
  .seatext-logo-wrapper { display: none !important; }
}

Again, verify the wrapper class via dev tools. The !important ensures it overrides any inline styles SeaText may apply.

Common Misconceptions

• "SeaText serves a different logo on mobile." False. One SVG, all devices.
• "Tilda automatically hides third-party widgets on mobile." False. Tilda only hides its own blocks when you configure them to.
• "I need a separate SeaText account for mobile." False. One account, one script, all viewports.
• "The logo blurs on mobile because it's raster." False. It's SVG — vector — so it stays sharp at any scale.

Key Facts from SeaText's Tilda Integration Guide

Fact	Detail	Source
Installation methods	Global HEAD injection (all pages) or per-page T123 HTML block	S1
Global HEAD location	Site Settings → Edit code inside HEAD tag	S1
Per-page block type	T123 → Other → T123 (HTML code block)	S1
Activation requirement	Visit site, stay 40+ seconds, wait 5 minutes for connection confirmation	S1
Domain restriction	One SeaText account per primary domain; localhost blocked	S1
Multi-site usage	Separate account required for each website	S1

Limitations and When This Advice Does Not Apply

• If you use a Tilda Zero Block with custom JavaScript that manipulates the SeaText wrapper, the logo behavior may differ from the defaults described here.
• SeaText may update its injection script in the future; always verify the wrapper class after major SeaText releases.
• This article covers the logo only. Other SeaText UI elements (chat widget, language selector, etc.) follow the same principle but may have their own responsive quirks.
• Tilda's "Switch off adaptive mode" setting (Page Settings → Additional) forces desktop layout on mobile. If enabled, the logo will render exactly as on desktop, including size and position.

Terminology Quick Reference

• SVG: Scalable Vector Graphics — resolution-independent image format used for the SeaText logo.
• HEAD injection: Placing script tags in the HTML <head> so they load on every page.
• T123 block: Tilda's generic HTML/embed block type for custom code.
• Block Visibility on Devices: Tilda setting to show/hide a block on Desktop, Tablet, Mobile independently.
• Media query: CSS rule that applies styles only when viewport matches conditions (e.g., max-width: 980px).
• Breakpoint: Viewport width where layout changes; Tilda's defaults are 1200px (desktop), 980px (tablet), 640px (mobile).

FAQ

Does SeaText load a separate logo file for mobile?

No. The same SVG is requested from SeaText's CDN on every device. The file is cached by the browser after the first load.

Can I upload my own logo to replace SeaText's default?

SeaText's dashboard does not currently expose a logo upload field for the Tilda integration. The logo is part of the SeaText brand widget. If you need a custom logo, contact SeaText support.

Why does the logo look huge on my mobile site?

Your global CSS likely lacks a max-width constraint on the logo wrapper. Add .seatext-logo-wrapper svg { max-width: 100%; height: auto; } to your custom CSS.

Will hiding the logo via CSS still count as a SeaText "view" for billing?

SeaText bills per connected domain, not per logo impression. Hiding the logo with CSS does not affect your subscription.

Can I show a different logo on mobile using SeaText settings?

No. SeaText does not provide per-device logo configuration. Use CSS content replacement or hide the default and inject your own mobile-only logo via a separate T123 block with mobile-only visibility.

Does Tilda's "Switch off adaptive mode" affect the SeaText logo?

Yes. With adaptive mode off, Tilda serves the desktop layout to mobile devices. The logo will appear at desktop size and position, which may cause overflow or tiny tap targets.

What if the logo flickers on mobile load?

That's a script-load-order issue. Move the SeaText script lower in the HEAD or add defer to the script tag. In Tilda's HEAD editor, wrap the snippet: <script defer>...</script>.

Decision Checklist: Choose Your Approach

• Keep logo visible on both, same size: Do nothing. Default behavior.
• Smaller logo on mobile: Add media query CSS to Site Settings → Custom CSS.
• Hide logo on mobile only: Use T123 block visibility (per-page) or CSS display:none in media query (global).
• Different logo on mobile: Hide SeaText logo on mobile via CSS, add a second T123 block with your custom logo set to mobile-only visibility.
• Fix position on mobile: Use fixed-position CSS in media query; test against Tilda's mobile menu.

Final Recommendation

Start with the default: let the same SVG render everywhere. If the logo conflicts with your mobile header, use Tilda's Block Visibility on Devices (for per-page T123 injections) or a single media query in Custom CSS (for global HEAD injections). Both methods are reversible, require no SeaText account changes, and keep your site's responsive logic inside Tilda where it belongs.

Further reading and comparison sources

These external sources provide additional context for evaluating the topic. Their inclusion is not an endorsement.

• How to Optimize a Website for Viewing on Mobile Devices │ Tilda ...
• How do I make my website look the same on mobile and desktop devices?
• How do I adapt blocks for mobile and desktop view? - Frequently ...

How SeaText can help

SeaText's Tilda integration installs in under a minute via a single JavaScript snippet. Once active, 20+ autonomous AI agents optimize your conversion rate, translate content into 125 languages, match landing pages to Google Ads keywords, detect bot traffic for ad refunds, and shape how AI assistants describe your brand. The logo is a lightweight SVG that loads from SeaText's CDN and respects your Tilda responsive settings — no extra configuration needed.

Limitation: One SeaText account covers one primary domain. If you run separate development and production domains on Tilda, you'll need separate SeaText accounts. Localhost and dynamic preview URLs are not supported.