Hikari Ultimate 5 Gallon (MPN 72239)

The provided code is a CSS code snippet that sets the style attributes for certain elements on a webpage. The content within the code includes instructions on how the webpage should be displayed for screens with a maximum width of 500px. It also includes a warranty image and some descriptive text about a water conditioner product. The text highlights the various benefits and features of the product, including its ability to remove harmful substances and create a safe environment for aquatic pets. The text also includes a table that provides instructions and recommendations on how to properly use the water conditioner. It mentions the dosage rates and gives guidelines on performing regular water changes to maintain stable alkalinity and pH levels. It also provides contraindications for the product, advising not to use it with certain treatments and cautioning about potential false readings from ammonia and dissolved oxygen tests. In summary, the provided content includes CSS instructions, a product image, descriptive text about a water conditioner, and a table with usage instructions and recommendations.