.content-area{display:flex;flex-direction:column;height:100%;overflow:hidden}.chat-content-area{overflow-y:auto;overflow-x:hidden}body,html{height:100%;margin:0;padding:0}.user-chat-box{background-color:#fff}.ai-chat-box{background-color:#d6d2d2}.flex-1{flex:1 1}.scrool-button{position:-webkit-sticky;position:sticky;bottom:0;right:50%;transform:translateX(50%)}.chat-list{flex:1 1;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;position:relative}