@media only screen and (max-width:640px){
 .side_menu {
     width: calc(100% + 32px);
     margin-left: -16px;
 }
 .side_menu .menulist:nth-last-child(1) {
     margin-bottom: 0px;
 }
 .side_menu .menu_item {
     font-size: 14px;
     padding: 17px  22px 17px 62px;
     display: none;
     transition: 0.3s;
 }
 .side_menu .menu_item.multiline {
     padding: 17px  62px;
 }
 .side_menu .menulist_content.current .menu_item {
     display: block;
     transition: 0.3s;
 }
 .side_menu .menu_item a::before {
    width: 100%;
    height: 49px;
 }
 .side_menu .menu_title {
     padding: 22px 24px 22px 62px;
     font-size: 16px;
     letter-spacing: 0.08em;
 }
  .side_menu .menu_title::after {
      right: 24px;
      top: 50%;
      transform: translateY(-50%);
  }
  .menulist_content.current .menu_title:after {
      transform: rotate(180deg);
      margin-top: -3px;
  }
 .menu_title.pencil span {
    width: 13px;
    height: 25px;
    left: 35px;
    top: 18px;
 }
 .menu_title.colorpencil span {
    width: 17px;
    height: 25px;
    left: 32px;
    top: 18px;
 }
 .menu_title.eraser span {
     width: 20px;
     height: 22px;
     left: 30px;
     top: 18px;
 }
 .menu_title.glue span {
    width: 13px;
    height: 24px;
    left: 34px;
    top: 18px;
 }
 .menu_title.other span {
     width: 16px;
     height: 22px;
     left: 34px;
     top: 19px;
 }
}