.widget_stock_onsale li * {
    display: inline-block;
    vertical-align: bottom;
    margin-bottom: 0;
    color: #9b9b9b;
    position: relative;
    font-weight: 400;
    transition: 0.3s;
    line-height: 1;
}

.widget_stock_onsale label {
    margin-left: 5px;
}

.widget_klb_product_categories input[type="checkbox"],
.widget_product_status input[type="checkbox"] {
    display: none;
}
.widget_klb_product_categories input[type="checkbox"] + label, 
.widget_product_status input[type="checkbox"] + label {
    cursor: pointer;
    position: relative;
    transition: 0.3s;
    margin-bottom: 0;
}

.widget_klb_product_categories input[type="checkbox"] + label span,
.widget_product_status input[type="checkbox"] + label span {
    vertical-align: middle;
    cursor: pointer;
    position: relative;
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 1px solid #cecdcd;
    -webkit-border-radius: 2px;
    border-radius: 2px;
    margin-right: 10px;
}

.widget_klb_product_categories input[type="checkbox"]:checked + label span:after,
.widget_product_status input[type="checkbox"]:checked + label span:after {
	opacity: 1;
    content: '';
    position: absolute;
    top: 4px;
    left: 3px;
    height: 3px;
    width: 7px;
    border: solid #222;
    border-width: 0 0 2px 2px;
    -webkit-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    transform: rotate(-45deg);
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
}

.widget_klb_product_categories input[type="checkbox"] + label span:after,
.widget_product_status input[type="checkbox"] + label span:after {
    opacity: 0;
    content: '';
    position: absolute;
    top: 4px;
    left: 3px;
    height: 3px;
    width: 7px;
    border: solid #222;
    border-width: 0 0 2px 2px;
    -webkit-transform: rotate(-45deg);
    -ms-transform: rotate(-45deg);
    transform: rotate(-45deg);
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
}

.widget_klb_product_categories input[type="checkbox"] + label:hover span:after,
.widget_product_status input[type="checkbox"] + label:hover span:after {
    opacity: 1;
}

.widget_product_status a:after, 
.widget_klb_product_categories a:after {
    display: none;
}