![]() The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. A left arrow indicates the heading has hidden contents. The cookie is used to store the user consent for the cookies in the category "Performance". A down arrow indicates the heading and its contents are visible. This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". To cater for this jumpy behavior you should use contain-intrinsic-size so space for an element is reserved when it’s not being rendered. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". thanks to content-visibility: auto doing its thing. The cookie is used to store the user consent for the cookies in the category "Analytics". Additional add-ons provide controls for role-based visibility, time-based visibility, and location-based visibility. This cookie is set by GDPR Cookie Consent plugin. Content Visibility provides a set of controls to say whether each discrete piece of content (or block‘ in WordPress parlance) should be shown to users who are signed in to your site or not. These cookies ensure basic functionalities and security features of the website, anonymously. To combat scroll jumping, use the property contain-intrinsic-size, with a value that you feel is appropriate and matches up roughly to the element size that you're skipping the rendering of.Necessary cookies are absolutely essential for the website to function properly. Use content-visibility with the value auto to skip the rendering of an element when it is off-screen or below the fold. In review, the content-visibility property has the potential to significantly reduce page load times and improve performance. That is because the browser will think that our section elements are around 1000px and then recalculate their size depending on their content from 1000px instead of 0px. More concretely, the goals is to avoid rendering and layout measurement work for content not visible to the user. ![]() That means our scrollbar will jump around less. content-visibility is a CSS property designed to allow developers and browsers to easily scale to large amount of content and control when rendering work happens. This is because contain-intrinsic-size tells the browser what the placeholder or natural size of our section elements will be. Now, as we scroll, we see less of a scrollbar jump. For our example, let's set this to 1000px. To combat this, we can use contain-intrinsic-size. This is because all of our sections assume a height of until they're rendered. However, if we scroll the content, you can see that the scroll bar is jumping. That's because content-visibility: auto applied to our section elements tells the browser to only worry about rendering the section elements who appear above the fold on initial load. Notice how our rendering time has dropped from 583 ms to 6 ms. On our page, we can see that the content is split over many section elements. If we inspect the markup for our page, we may be able to spot opportunities where we can use content-visibility: auto. Looking at the summary panel, we can see that 583 ms were used for rendering our page. ![]() Jhey Tompkins: Start by profiling the render performance for the page.
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