@media only screen and (max-width:980px){#main-header{position:fixed;top:0;width:100%;background-color:#ffffff;box-shadow:0 2px 8px rgba(0,0,0,0.1);z-index:9999}#logo{max-height:50px;transition:max-height 0.3s ease}.mobile_menu_bar{float:right;margin-top:10px;font-size:28px;color:#333}#main-header .et_mobile_menu{background-color:#f9f9f9;border-top:1px solid #ddd}#main-header .et_mobile_menu li a{padding:14px 20px;font-size:16px;color:#222;border-bottom:1px solid #eee}#main-header .et_mobile_menu li a:hover{background-color:#efefef;color:#000}}