#43 - Block Scrolling When Modal Is Open

Stop the page from scrolling when someone opens a modal.

Video Tutorial

Loom
tutorial.mov

Watch the video for step-by-step implementation instructions

The Code

30 lines
Paste this into Webflow
<!-- 💙 MEMBERSCRIPT #43 v0.1 💙 BLOCK SCROLLING WHEN MODAL IS OPEN -->
<style>
.no-scroll {
  overflow: hidden;
}
</style>
<script>
function isDesktopViewport() {
  return window.innerWidth >= 900; // Adjust the breakpoint width as needed
}

const codeBlocks = document.querySelectorAll('[ms-code-block-scroll]');

function handleScrollBlock(event) {
  if (isDesktopViewport()) {
    document.body.classList.add('no-scroll');
  }
}

function handleScrollUnblock(event) {
  if (isDesktopViewport()) {
    document.body.classList.remove('no-scroll');
  }
}

codeBlocks.forEach(codeBlock => {
  codeBlock.addEventListener('mouseenter', handleScrollBlock);
  codeBlock.addEventListener('mouseleave', handleScrollUnblock);
});
</script>

Script Info

Versionv0.1
PublishedNov 11, 2025
Last UpdatedNov 11, 2025

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