[class^="stack-"]:before, [class*=" stack-"]:before {
  font-style: normal;
  font-weight: normal;
  speak: none;
 
  display: inline-block;
  text-decoration: inherit;
  width: 1em;
  height:1em;
  margin-right: .2em;
  text-align: center;
  /* opacity: .8; */
 
  /* For safety - reset parent styles, that can break glyph codes*/
  font-variant: normal;
  text-transform: none;
 
  /* fix buttons height, for twitter bootstrap */
  line-height: 1em;
 
  /* Animation center compensation - margins should be symmetric */
  /* remove if not needed */
  margin-left: .2em;
 
  /* you can be more comfortable with increased icons size */
  /* font-size: 120%; */
 
  /* Font smoothing. That was taken from TWBS */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
 
  background-size:contain;
  background-repeat:no-repeat;
  background-position:center;
}
 
.stack-up-open-big:before { content: ''; background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 866 866'%3E%3Cpath fill='%23808080' d='M63 570l370-356 372 356q22 26 48 0 26-22 0-48l-396-392q-22-22-48 0l-396 392q-26 26 0 48 24 24 50 0z'%3E%3C/path%3E%3C/svg%3E");} /* '' */
.stack-search:before { content: ''; background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 512 512'%3E%3Cpath fill='%23fff' d='M496.131 435.698l-121.276-103.147c-12.537-11.283-25.945-16.463-36.776-15.963 28.628-33.534 45.921-77.039 45.921-124.588 0-106.039-85.961-192-192-192s-192 85.961-192 192 85.961 192 192 192c47.549 0 91.054-17.293 124.588-45.922-0.5 10.831 4.68 24.239 15.963 36.776l103.147 121.276c17.661 19.623 46.511 21.277 64.11 3.678s15.946-46.449-3.677-64.11zM192 320c-70.692 0-128-57.308-128-128s57.308-128 128-128 128 57.308 128 128-57.307 128-128 128z'%3E%3C/path%3E%3C/svg%3E");}
.stack-angle-down:before { content: ''; background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 580 580'%3E%3Cpath fill='%23fff' d='M564 280q16-16 16-41t-16-41q-38-38-78 0l-196 188-196-188q-40-38-78 0-16 16-16 41t16 41l234 224q16 16 40 16t40-16z'%3E%3C/path%3E%3C/svg%3E");} 
.stack-angle-up:before { content: ''; background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 580 580'%3E%3Cpath fill='%23fff' d='M564 422l-234-224q-18-18-40-18t-40 18l-234 224q-16 16-16 41t16 41q38 38 78 0l196-188 196 188q40 38 78 0 16-16 16-41t-16-41z'%3E%3C/path%3E%3C/svg%3E");} 
.stack-menu:before { content: ''; background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 700 700'%3E%3Cpath fill='%23fff' d='M650 400q22 0 36-15t14-35-15-35-35-15l-600 0q-20 0-35 15t-15 35 14 35 36 15l600 0z m-600 100q-20 0-35 15t-15 35 14 35 36 15l600 0q22 0 36-15t14-35-15-35-35-15l-600 0z m600-300q22 0 36-15t14-35-15-35-35-15l-600 0q-20 0-35 15t-15 35 14 35 36 15l600 0z'%3E%3C/path%3E%3C/svg%3E");height: .7em;}
.stack-filter:before { content: ''; background-image: url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' viewBox='0 0 352 448'%3E%3Cpath fill='%23fff' d='M350.75 73.75c2.5 6 1.25 13-3.5 17.5l-123.25 123.25v185.5c0 6.5-4 12.25-9.75 14.75-2 0.75-4.25 1.25-6.25 1.25-4.25 0-8.25-1.5-11.25-4.75l-64-64c-3-3-4.75-7-4.75-11.25v-121.5l-123.25-123.25c-4.75-4.5-6-11.5-3.5-17.5 2.5-5.75 8.25-9.75 14.75-9.75h320c6.5 0 12.25 4 14.75 9.75z'%3E%3C/path%3E%3C/svg%3E");}
.bar-1 .menu-horizontal .stack-search:before {height: .85714285714286em;}