У вашего броузера проблема в совместимости с HTML5
Clear ice is tricky to make at home. There is a 'trick' to making clear ice cubes, but it isn't complicated and doesn't require special equipment. Here's what you need to do. Let's try three different options:
1. Cold tap water
2. Hot boiled water
3. Double boiled water and a fridge in highest temperature setting
What will the results be?