Style.css

/* The container */
.checkcontainer {
  -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
  cursor: pointer;
  display: block;
  font-size: 16px;
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

/* Hide the browser's default checkbox */
.checkcontainer input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

/* Create a custom checkbox */
.checkmark {
  background-color: #eeeeee;
  height: 15px;
  left: 0;
  position: absolute;
  top: 3px;
  width: 15px;
}

/* On mouse-over, add a grey background color */
.checkcontainer:hover input ~ .checkmark {
    background-color: #ccc;
}

/* When the checkbox is checked, add a blue background */
.checkcontainer.active-filter input:checked ~ .checkmark {
    background-color: #2196F3;
}

/* Create the checkmark/indicator (hidden when not checked) */
.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

/* Show the checkmark when checked */
.checkcontainer.active-filter input:checked ~ .checkmark::after {
    display: block;
}

/* Style the checkmark/indicator */
.checkcontainer .checkmark:after {
    left: 5px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 3px 3px 0;
    -webkit-transform: rotate(45deg);
    -ms-transform: rotate(45deg);
    transform: rotate(45deg);
}
.filter-sidebar .sbf-title {
  border-bottom: 1px solid;
  display: block;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  margin-top: 30px;
}
.sb-filter .advanced-filters {
  max-height: 220px;
  overflow: auto;
}
.sb-widget.filter-sidebar.no-sidebar.dropdown {
  padding: 0 20px 0 0;
}
.coll_prodbar .grid--view-items {
  border-left: 1px solid #000;
  margin: 0;
  padding-left: 20px;
}
.checkcontainer.active-filter.advanced-filter.rt > a {
  font-weight: 600;
}