/*slide menu*/
button.btn_nav {
  position: fixed;
  top: 0;
  left: 0;
  background-color: transparent;
  border: none;
  cursor: pointer;
  z-index: 9999; }

button.btn_nav:focus {
  outline: none; }

/*button*/
.btn {
  width: 35px;
  height: 35px;
  position: absolute;
  background: #FFF;
  z-index: 1000;
  top: 50px;
  left: 25px; }

.btn:before,
.btn:after,
.btn span {
  display: block;
  width: 80%;
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  -webkit-transition: .35s ease-in-out;
  -moz-transition: .35s ease-in-out;
  transition: .35s ease-in-out; }

.btn span {
  height: 3px;
  background-color: #000;
  top: calc(50% - 1.5px); }

.btn:before {
  content: "";
  top: calc(25% - 3px);
  border-top: 3px solid #000; }

.btn:after {
  content: "";
  bottom: calc(25% - 3px);
  border-bottom: 3px solid #000; }

.btn.on span {
  display: none; }

.btn.on:before {
  top: calc(50% - 1.5px);
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  transform: rotate(45deg); }

.btn.on:after {
  bottom: calc(50% - 1.5px);
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  transform: rotate(-45deg); }

.btnlink {
  width: 96%;
  display: block;
  margin: auto;
  border: 1px solid #0060ff;
  border-radius: 5px;
  background: #4285F4;
  height: 35px;
  line-height: 35px;
  text-align: center;
  margin-bottom: 35px;
  color: #000; }

ul.toggle_menu {
  display: none;
  list-style-type: none;
  position: fixed;
  padding-top: 50px;
  width: 100%;
  max-width: 360px;
  height: 100%;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.9); }

ul.toggle_menu li a {
  text-decoration: none;
  text-align: center;
  font-weight: bold;
  display: block;
  padding: 17px 25px;
  color: #000; }

ul.toggle_menu li a:hover {
  color: #333; }