.reference{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap}.reference__item{background:#f2f2f2 no-repeat 50%;background-size:cover;margin:0 0 1rem;padding:2rem 1rem;width:100%}.reference__item:first-child{background-image:url(../img/pro-firmy-01.jpg)}.reference__item:nth-child(2){background-image:url(../img/pro-firmy-02.jpg)}.reference__item:nth-child(3){background-image:url(../img/pro-firmy-03.jpg)}.reference__item:nth-child(4){background-image:url(../img/pro-firmy-04.jpg)}.reference__text{background:rgba(203,39,53,.85);color:#fff;font-family:Poppins,sans-serif;font-size:1.1rem;min-width:270px;padding:2rem;position:relative;width:70%;z-index:2}.reference__text ul{list-style:square}.reference__text ul li{margin-bottom:.5rem}.reference__title{color:#fff;font-size:1.5rem}.reference__photo{height:100%;left:0;position:absolute;top:0;width:100%;z-index:1}