body {background-color:#f1f1f1;}
#chat {margin: 20px auto;}
#chat #chat-box { border: 1px solid #ddd; background: #fff; height: 300px; overflow-y: scroll; padding: 20px; margin-bottom: 25px; }
#chat .message { border-bottom: 1px solid #eee; padding: 10px 0 15px; }
#chat .message img { max-width: 200px; display: block; margin-top: 5px; }
#chat input, #chat textarea, #chat button { width: 100%; margin-bottom: 0; box-sizing: border-box; }
.file_copy{font-size: 0.84rem; padding-bottom: 5px;}
#chat #save{width: auto;}
#chat #chat-box_wrap {background: #fff;}
#chat .form-control{border: var(--bs-border-width) solid #999; width: 70%;}
#chat .send_btn_area{margin: 0 auto; text-align: center;}
#chat .send_btn_area button{width: auto;}

/* =========================================================
		SP
========================================================= */
@media screen and (max-width: 767px) {
#chat .form-control{width: 100%;}
#chat {margin: 20px auto 0;}	

	
}