.btn,
button {
  background: none !important;
  border-radius: 0;
  border: 2px solid #ffffff;
}
.btn:hover,
button:hover,
.btn:focus,
button:focus {
  background: #ffffff !important;
  color: #000000 !important;
}

#t3-header-wrap {
  color: #ffffff;
  background: #000;
  position: relative;
  top: 0;
  width: 100%;
  z-index: 1000;
}
@media (max-width: 767px) {
  #t3-header-wrap {
    position: relative;
  }
}

#mainbody {
  background: #000000;
  position: relative;
  z-index: 999;
}