1
When you create a contract, it doesn't call a fallback. It calls the constructor. If you want to be able to send ETH with the creation of your contract, you need to mark the contructor as payable, like this:
constructor() public payable {
owner = msg.sender;
}
1
Of course it fails since you don't have the Openzeppelin contracts in Remix. This has nothing to do with the "@" syntax. The "@" just indicates the owner of a specific npm package.
In Remix you can either
Import the file directly via Github.
Download the file and manually insert it.
Automatic import via Github would work like this
...
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