.whatsapp-button {
    position: fixed;
    right: 13px;
    bottom: 90px;
    transform: translate(-50%, -50%);
    background: #25D366; /*цвет кнопки*/
    border-radius: 50%;
    width: 55px; /*ширина кнопки*/
    height: 55px; /*высота кнопки*/
    color: #fff;
    text-align: center;
    line-height: 53px; /*центровка иконки в кнопке*/
    font-size: 35px; /*размер иконки*/
    z-index: 9999;
}
.whatsapp-button a {
    color: #fff;
}
.whatsapp-button:before,
.whatsapp-button:after {
    content: " ";
    display: block;
    position: absolute;
    border: 50%;
    border: 1px solid #25D366; /*цвет анимированных волн от кнопки*/
    left: -20px;
    right: -20px;
    top: -20px;
    bottom: -20px;
    border-radius: 50%;
    animation: animate 1.5s linear infinite;
    opacity: 0;
    backface-visibility: hidden; 
}
 
.whatsapp-button:after{
    animation-delay: .5s;
}
 
@keyframes animate
{
    0%
    {
        transform: scale(0.5);
        opacity: 0;
    }
    50%
    {
        opacity: 1;
    }
    100%
    {
        transform: scale(1.2);
        opacity: 0;
    }
}

@media (max-width : 800px) {  
.whatsapp-button {   
    bottom: 5px; /*отступ кнопки снизу от экрана*/
    left: 70px; /*отступ кнопки слева от экрана(right - справа)*/
  }
}

.dropbtn {
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    text-decoration: underline;
}
.dropdown {
    position: relative;
    display: inline-block;

}
.dropdown-content {
    display: none;
    position: absolute;
    background-color: #f9f9f9;
    width: 140px;
}
.dropbtn
{
  /* background: url('http://icons.iconarchive.com/icons/custom-icon-design/flag-3/16/Russia-Flag-icon.png') no-repeat left center; */

  width: 115px;;
}
.dropbtn::after {
    /* background: rgba(0, 0, 0, 0) url("https://cdn3.iconfinder.com/data/icons/google-material-design-icons/48/ic_keyboard_arrow_down_48px-16.png") no-repeat scroll center center; */
    content: "";
    height: 16px;
    position: absolute;
    right: 0;
    top: 7px;
    width: 0px;
}

.dropdown-content a {
    color: black;
    padding: 2px 0 2px 25px;
    text-decoration: none;
    font-size: 16px;
    display: block;
}
.dropdown-content a:hover {background-color: #f1f1f1}
.dropdown:hover .dropdown-content {
    display: block;
}

@media (max-width : 800px) {  
.dropbtn {
    display: none;
}
}