Question: I run this program and after that i get "Errors exists do you want to continue". Then i click yes and i get "Hello world" in the console. Which was the project i ran previously. 
Anybody knows what is the problem? 

```
#include <iostream>
#include <typeinfo>
using namespace std;

int func() {
    return 42;
}

int main ( int argc, char ** argv ) {
    auto x = func();
    cout << x << endl;
    cout << typeid(x).name() << endl;
    return 0;
}

```

Answer: 
Since you're problem is with the style you need to make a change to the CSS. 

In your case you want to get the menu on top of all other objects. Just give the menu container a large `z-index`.
Add this to your css file:

```
header {
    z-index: 100; 
}

```

> 
> The z-index property specifies the stack order of an element.
> 
> 
> An element with greater stack order is always in front of an element with a lower stack order.
> 
> 
> Note: z-index only works on positioned elements (position:absolute, position:relative, or position:fixed).
> 
> 
>