#mixcommand {
  text-align: center;
}
#mixform {
  margin: 0;
  padding: 0;
}
#mixhelp {
  text-align: left; 
  padding-top: 1em;
  display: none;
}
#mixsearches {
  -moz-column-count: 4;
  -webkit-column-count: 4;
  column-count: 4;
}
#mixabbrev {
  -moz-column-count: 3;
  -webkit-column-count: 3;
  column-count: 3;
}

#mixsearch, #mixwhich, #mixsubmit { height: 18px; }
#mixcommand h2 { color: black; margin: 0.5em 0; border-bottom: 1px solid; } 
#mixcommand pre { margin: 0; padding: 0; font-size: 1em; font-family: monospace; }

@media screen and (max-width:600px) {
  #mixsearches {
    -moz-column-count: 3;
    -webkit-column-count: 3;
    column-count: 3;
  }
  #mixabbrev {
    -moz-column-count: 2;
    -webkit-column-count: 2;
    column-count: 2;
  }
}

@media screen and (max-width:600px) {
  #mixsearches {
    -moz-column-count: 3;
    -webkit-column-count: 3;
    column-count: 3;
  }
  #mixabbrev {
    -moz-column-count: 2;
    -webkit-column-count: 2;
    column-count: 2;
  }
}

@media screen and (max-width:400px) {
  #mixsearches {
    -moz-column-count: 2;
    -webkit-column-count: 2;
    column-count: 2;
  }
  #mixabbrev {
    -moz-column-count: 1;
    -webkit-column-count: 1;
    column-count: 1;
  }
}