.chatbot{
    position:fixed;
    right:0;
    top:40%;
    z-index:99999;
    width:76px;
    height:266px;
    opacity: 1;
    transition: opacity 0.5s ease; 
}
.chatbot > a{
    display:block;
    width:100%;
    height:100%;
}
.chatbot .close{
    position:fixed;
    right:3px;
    top:37%;
    display:block;
    width:11px;
    height:11px;
}
.chatbot img{width:100%;}
@media screen and (max-width: 768px){
    .chatbot{
        position:fixed;
        top:auto;
        right:0;
        bottom:85px;
        z-index:99999;
        width:46px;
        height:162px;
        opacity: 1;
        transition: opacity 0.5s ease; 
    }
    .chatbot .close{
        position:fixed;
        right:3px;
        top:37%;
        display:block;
        width:11px;
        height:11px;
    }
    .chatbot img{width:100%;}
}