#toggle{position:fixed;bottom:20px;right:20px;cursor:pointer}#box{position:fixed;bottom:80px;right:20px;border:1px solid #ddd}#head{display:flex;justify-content:space-between;padding:10px;border-bottom:1px solid #eee}#log{height:200px;overflow:auto;padding:10px}.input-wrap{display:flex}#inp{flex:1;padding:10px;border:none}#send{padding:10px;background:#0073aa;color:#fff;border:none}