body{
    margin:0;
    background:#f4f4f4;
    font-family:
    Arial,
    Helvetica,
    sans-serif;
}

.container{
    width:700px;
    margin:50px auto;
}

h1{
    text-align:center;
}

#chat-box{
    height:500px;
    background:white;
    border-radius:10px;
    padding:20px;
    overflow-y:auto;
    box-shadow:0 0 10px rgba(0,0,0,0.1);
}

.message{
    margin-bottom:15px;
}

.user{
    color:#005bbb;
}

.snowy{
    color:#cc0066;
}

.input-area{
    display:flex;
    margin-top:15px;
}

#message{
    flex:1;
    padding:12px;
    font-size:16px;
}

button{
    width:120px;
    font-size:16px;
}