.reference{display:-webkit-box;display:-ms-flexbox;display:flex;-ms-flex-wrap:wrap;flex-wrap:wrap}.reference__item{width:100%;margin:0 0 1rem;padding:2rem 1rem;background:#f2f2f2 no-repeat 50%;background-size:cover}.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{position:relative;z-index:2;width:70%;min-width:270px;padding:2rem;color:#fff;font-size:1.1rem;font-family:Dosis,sans-serif;background:rgba(202,40,52,.85)}.reference__text ul{list-style:square}.reference__text ul li{margin-bottom:.5rem}.reference__title{color:#fff;font-size:1.5rem}.reference__photo{position:absolute;top:0;left:0;z-index:1;width:100%;height:100%}