.centered {
  margin:50px auto;
  text-align:center;
}

.button::-moz-focus-inner{
  border: 0;
  padding: 0;
}

.button_spacer {
  padding: 6px 20px;
  color: var(--4-color);
  display: inline-block;
  *display: inline;
  overflow: visible;
  font: 13px arial, helvetica, sans-serif;
  text-decoration: none;
  white-space: nowrap;
}

.button a, button, .button input {
  padding: 0.2em;
  color: var(--4-color);
  background-color: var(--3-color);
  display: inline-block;
  *display: inline;
  zoom: 1;
  margin: 0;
  cursor: pointer;
  border: 1px solid var(--grey-color);
  overflow: visible;
  font: 13px arial, helvetica, sans-serif;
  text-decoration: none;
  white-space: nowrap;

  background-image: -webkit-gradient(linear, left top, left bottom, from(rgba(255,255,255,1)), to(rgba(255,255,255,0)));
  background-image: -webkit-linear-gradient(top, rgba(255,255,255,1), rgba(255,255,255,0));
  background-image: -moz-linear-gradient(top, rgba(255,255,255,1), rgba(255,255,255,0));
  background-image: linear-gradient(top, rgba(255,255,255,1), rgba(255,255,255,0));

  transition: background-color .2s ease-out;
  background-clip: padding-box; /* Fix bleeding */
  border-radius: 3px;
  /* box-shadow: 0 1px 0 rgba(0, 0, 0, .3), 0 2px 2px -1px rgba(0, 0, 0, .5), 0 1px 0 rgba(255, 255, 255, .3) inset; */
  /* text-shadow: 0 1px 0 rgba(255,255,255, .9); */
  user-select: none;
}

.button a.trim, button.trim {
  padding: 0 5px 0 5px;
}

.button a:hover, button:hover{
  background-color: #eee;
  color: #555;
}

.button a:active, button:active{
  background: #e9e9e9;
  position: relative;
  top: 1px;
  text-shadow: none;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .3) inset;
}

.button[disabled], .button[disabled]:hover, .button[disabled]:active{
  border-color: #eaeaea;
  background: #fafafa;
  cursor: default;
  position: static;
  color: #999;
  /* Usually, !important should be avoided but here it's really needed :) */
  box-shadow: none !important;
  text-shadow: none !important;
}

.button a:hover, button:hover {
  color: var(--highlight-color);
}

.button-group,
.button-group li{
  display: inline-block;
}

.horizontal{
  display: inline-flex;
}

.warning a {
  color: var(--4-color);
  background-color: var(--highlight-color);
}