.christmas-decorations{position:relative}.christmas-decorations::before{background:url(https://images.musicful.ai/musicfulen/assets/activity/christmas-2025/christmas_btn_left.png) no-repeat;background-size:100%;content:"";display:block;height:109px;left:-5%;position:absolute;top:-41%;width:109%}.header-nav{position:relative;z-index:3}