.nav-my {
    background-color: #4682B4 !important;
}
.my-brand {
    max-width: 80px;
}
body {
    background-color: #7B68EE !important;
}
.bb{
    background-color: #1E90FF !important;
}
.nn{
    background-color: #FF0000 !important;
}
.mm{
    background-color: #FFFF00 !important;
}