OKX is a world-renowned comprehensive digital asset service platform, providing users with diversified products and services including spot, contracts, options, etc. With its smooth operation experience and powerful function integration, its official APP has become a common tool for many digital asset users.

As the internationally leading blockchain digital asset trading platform, Binance provides users with a safe and convenient trading experience. Its official app integrates multiple core functions such as market viewing, asset management, currency trading and fiat currency trading.

Theaspect-ratioCSSpropertydefinesthewidth-to-heightratioofanelement,ensuringconsistentproportionsinresponsivedesigns.1.Itisapplieddirectlytoelementslikeimages,videos,orcontainersusingsyntaxsuchasaspect-ratio:16/9.2.Commonusecasesincludemaintainingres

Binance is a world-renowned digital asset trading platform, providing users with secure, stable and rich cryptocurrency trading services. Its app is simple to design and powerful, supporting a variety of transaction types and asset management tools.

To create a responsive full-screen video background, you need to use fixed positioning and object-fit properties to ensure that the video covers the entire viewport without distortion; 1. Use position:fixed to fix the video container to the viewport; 2. Maintain the video aspect ratio and cover the container through object-fit:cover; 3. Use z-index:-1 to place the video behind the content; 4. Add autoplay, muted, loop, and playsinline properties to support automatic playback; 5. Provide background images for mobile devices or slow connections as a downgrade solution; 6. Optimize the video file size and format to improve performance, and ultimately achieve cross-device compatible full-screen video background effects.

Use hidden checkboxes and CSS's :checked pseudo-class combined with adjacent sibling selectors ( ) to control content display; 2. The HTML structure contains input, label and content div for each collapsed item; 3. Smooth expansion/collapse animations by setting max-height transition; 4. Add open/close status icons with pseudo-elements; 5. Use radio types to implement single-open mode, while checkbox allows multiple openings. This is an interactive foldable menu implementation that requires no JavaScript and is compatible with modern browsers.

Use HTML to create a structure containing repeated logos to achieve seamless scrolling; 2. Use CSS animation and transform to achieve smooth horizontal scrolling; 3. Use media queries to make the logo adaptable to different screen sizes; 4. Optionally add: hover pause animation to improve user experience; 5. Optimize image format, add barrier-free tags and control the number of logos to improve performance and accessibility, and ultimately achieve a logo scrolling effect that does not require JavaScript, responsive and infinite loops.

Use CSSclip-path to create non-rectangular shapes in the browser without additional images or complex SVG; 2. Common shape functions include inset(), circle(), ellipse() and polygon(), where polygon() implements custom shapes by defining coordinate points, which is suitable for creating creative designs such as dialog bubbles; 3. clip-path can achieve dynamic effects through CSS transition or keyframe animation, such as circle expansion during hovering, but only supports inter-shape animations of the same type and number of vertices; 4. Pay attention to responsiveness and accessibility to ensure that the content is still available when not supported, the text is readable, avoid excessive cropping, and control the number of polygon vertices to optimize performance. At the same time, it is necessary to know that