*{
    box-sizing: border-box;
}



img{
    display: flex;
    width: fit-content;
    height: auto;
    justify-items: center;
    align-items: center;
}

.float{
    position:fixed;
    width:60px;
    height:60px;
    bottom:40px;
    right:40px;
    background-color:#25d366;
    color:#FFF;
    border-radius:50px;
    text-align:center;
  font-size:30px;
    box-shadow: 2px 2px 3px #999;
  z-index:100;
}
.float:hover {
    text-decoration: none;
    color: #25d366;
  background-color:#fff;
}

.my-float{
    margin-top:16px;
}





















@media screen and (max-width: 1200px){

    img{
        width: 100%;
        height: 100%;
    }
}

@media screen and (max-width: 500px){

    img{
        width: 100%;
        height: 640px;
    }
}

@media screen and (max-width: 400px){

    img{
        width: 110%;
        height: 640px;
    }
}

@media screen and (max-width: 300px){

    img{
        width: 110%;
        height: 640px;
    }
}