In a bootstrap responsive page how to center a div

Question

I need to create a responsive page using bootstrap by positio

Answer 1

body{
    height: 100vh;
} 
.container{
    height: 100%;
}

        

            

                
Counter
            
            

                0
            
            

                Decrease
                Reset
                Increase
            
        
    

you can do also that way.