.mw-bg-pattern {display: block;position: relative;}.mw-bg-pattern:before {content: "";display: block;position: absolute;background-image: url("/img/layout/bg-pattern-mobile.png");background-size: 100%;background-repeat: no-repeat;background-position: center;left: 0;right: 0;top: 50%;transform: translate(0,-60%);height: 140px;z-index: -1;}@media all and (min-width: 500px){.mw-bg-pattern:before {background-image: url("/img/layout/bg-pattern-tablet.png");height: 500px;}}@media all and (min-width: 980px){.mw-bg-pattern:before {background-image: url("/img/layout/bg-pattern-desktop.png");}}