bootstrap mouse over change color code example
Example: bootstrap navbar a hover color
.navbar-default .navbar-nav > li > a:hover, .navbar-default .navbar-nav > li > a:focus {
background-color: #FFFF00;
color: #FFC0CB;
}
.navbar-default .navbar-nav > li > a:hover, .navbar-default .navbar-nav > li > a:focus {
background-color: #FFFF00;
color: #FFC0CB;
}