Want to change Vertical menu to horizontal

Site URL: https://heartcentered.xn--energy%20-sha

https://heartcentered.energy  

I want to change my website vertical menu to horizontal (right hand side). Need urgent help!

On 8/30/2021 at 6:54 PM, Atif said:

Site URL: https://heartcentered.xn--energy%20-sha

https://heartcentered.energy  

I want to change my website vertical menu to horizontal (right hand side). Need urgent help!

Add to Design > Custom CSS

nav#mainNavigation {
    display: flex;
    flex-direction: column;
}