@media only screen and (max-width: 500px){
.logo{
 font-size: 17px !important;
}
}
@media only screen and (max-width: 420px){
.ban{
 width: 250px !important;
}
}
.accordion-header:hover{
	background-color: lightgreen !important;
}
.navb:hover{
background-color: lightgreen !important;
}