Quick Start
Open the CSS Animation tool on HeronTool. You'll see a property panel on the left and a live preview area on the right. Select the element to animate (e.g., a button or image), then choose a preset effect (like fadeIn or slideUp) from the "Animation Name" dropdown, or click "Custom" to manually enter keyframes.
Adjust Parameters & Preview
Use the "Duration" slider (0.1s to 10s) to control animation speed, "Delay" to set the wait time before start, and "Iteration Count" for infinite loops. You can also adjust the "Easing Function" (ease, linear, etc.) to change the rhythm. Every modification shows instantly in the right preview window, supporting multiple elements simultaneously.
Export & Integration
Click the "Generate Code" button to output complete CSS animation code (including @keyframes). Copy it into your project or use "Export CSS File" to download as a .css file. The tool also offers an "Embed Sample" option for quick testing.
FAQ
Q: Can I preview multiple animations running at once?
A: Yes. Add multiple elements in the preview area and set different animation properties for each.
Q: Is the exported code standards-compliant?
A: Yes, the code follows W3C CSS specifications and can be used in production.
Q: Is mobile preview supported?
A: Yes. Click the responsive toggle in the preview area to simulate phone screen effects.
