I need some help from CSS experts…

i'll try to explain : when you hit a button on android devices, you get an orange rectangle to markup the place you've just hit and while taping you have a blue rectangle… i want to get rid of those 2… for the orange rectangle i used the code :

}
.bouton:focus {
outline: none;
}

But for the temporary blue rectangle, i'm still looking for that piece of code… can anyone help me there ???

Thanks a lot