header .nav>a:first-child {
  align-self:stretch;
  display:flex;
  align-items:center;
  flex:0 0 auto
}
header .logo {
  display:block;
  width:205px;
  height:auto;
  margin:0
}
@media(max-width:760px) {
  header .logo {
    width:170px
  }
}