body { background: #ddd; font: 16px/1 sans-serif; } div { margin: 100px; width: 200px; background: #fff; padding: 20px; position: relative; } div:after { content: ""; position: absolute; top: 50%; left: -10px; margin: -10px 0 0; border-right: 10px solid #fff; border-top: 10px solid transparent; border-bottom: 10px solid transparent; } .box-shadow { box-shadow: 0 1px 5px rgba(0,0,0,.5); } .filter-drop-shadow { -webkit-filter: drop-shadow(0 1px 5px rgba(0,0,0,.5)); -moz-filter: drop-shadow(0 1px 5px rgba(0,0,0,.5)); -ms-filter: drop-shadow(0 1px 5px rgba(0,0,0,.5)); -o-filter: drop-shadow(0 1px 5px rgba(0,0,0,.5)); filter: drop-shadow(0 1px 5px rgba(0,0,0,.5)); }<div class="box-shadow"> box-shadow </div> <div class="filter-drop-shadow"> filter: drop-shadow </div>