.heidter{width:80%;margin:0 auto}@media only screen and (min-device-width:768px) and (max-device-width:1024px) and (-webkit-min-device-pixel-ratio:1){.heidter{width:90%;margin:0 auto}ul.arrow_ul{margin-top:-15px}}@media only screen and (min-device-width:320px) and (max-device-width:480px) and (-webkit-min-device-pixel-ratio:2){.heidter{width:100%;margin:0 auto}.row.mt-4{width:100%}}