@media only screen and (max-width: 991px) {
  .burgerbutton {
    position: absolute;
    right: 5%;
    margin: 0 auto;
    top: 40%;
    width: 34px;
    height: 24px;
    cursor: pointer;
    z-index: 99999;
  }
  .burgerbutton span {
    width: 100%;
    transition: 0.5s all cubic-bezier(0.175, 0.885, 0.32, 1.275);
    height: 4px;
    background: #39588d;
    position: absolute;
    right: 0;
    left: 0;
    margin: 0 auto;
    -webkit-transform: rotate(0);
    transform: rotate(0);
  }
  .burgerbutton span:nth-child(1) {
    top: 0;
  }
  .burgerbutton span:nth-child(2) {
    top: 44%;
    width: 60%;
  }
  .burgerbutton span:nth-child(3) {
    bottom: 0;
  }
  .burgerbutton.open span:nth-child(1) {
    top: 7px;
    -webkit-transform: rotate(-45deg);
    transform: rotate(-45deg);
  }
  .burgerbutton.open span:nth-child(2) {
    width: 0%;
  }
  .burgerbutton.open span:nth-child(3) {
    bottom: 13px;
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
  }
  .burgerbutton.open ~ .menu-header {
    opacity: 1;
    right: 0;
    -webkit-transition: all 0.5s;
    -moz-transition: all 0.5s;
    -ms-transition: all 0.5s;
    -o-transition: all 0.5s;
    transition: all 0.5s;
    overflow-y: scroll;
  }
  #header ul.main_menu {
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }
  .menu-main-menu-container,
  .menu-main-menu-en-container {
    overflow-y: auto;
    max-height: 400px;
    width: 320px;
    background-color: white;
    background-image: linear-gradient(
      to left,
      #91331d 0%,
      #e26e41 99%,
      #e26e41 100%
    );
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 9999;
    padding: 15px 20px;
    right: -320px;
    transition: 0.3s ease-in;
    padding-top: 120px;
  }
  .menu-header.show .menu-header {
    opacity: 1;
    visibility: inherit;
  }
  .menu-header.show .menu-main-menu-container,
  .menu-header.show .menu-main-menu-en-container {
    right: 0;
  }
  .menu-header {
    display: none;
  }
}