.my-chatbox-header {
	color:white;
	background-color: #000;
}
.my-chatbox-show-btn-area{bottom:70px;}
.my-chatbox-show-btn-area img {
width:250px
}

@media screen and (max-width: 640px) {
.my-chatbox-show-btn-area{
bottom:20px;
right:20px;
}
.my-chatbox-iframe {
    width: 100%;
    max-width: 100%;
}
.my-chatbox-area{width:100%;}
.my-chatbox-header img{width: 40px;}
.footer-text-area{bottom:0;}
}

@media screen and (max-width: 900px) {
    .my-chatbox-header img {
        width: 40px;
    }
}