I see .btn:focus
has an outline
on it:
.btn:focus {
outline: thin dotted;
outline: 5px auto -webkit-focus-ring-color;
outline-offset: -2px;
}
Try changing this to:
.btn:focus {
outline: none !important;
}
Basically, look for any instances of outline
on :focus
ed elements — that's what's causing it.
Update - For Bootstrap v4:
.btn:focus {
box-shadow: none;
}