.btn-outline-xin{
    color:#343a40;
    border-color:#343a40
}
.btn-outline-xin:hover{
    color:#fff;
    background-color: #ed4a00;
    border-color: #ed4a00;
}
.btn-outline-xin.focus,.btn-outline-xin:focus{
    box-shadow:0 0 0 .2rem rgba(52,58,64,.5)
}