.myk-ava,
.myk-btn,
.myk-list,
.myk-name,
.myk-panel,
.myk-wa-icon,
.myk-who,
.myk-number,
.myk-panelhead,
.myk-wa-icon,
.myk-paneltitle {
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
}

.myk-btn {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background-color: #25d366;
  border-radius: 50%;
  display: inline-block;
  padding: 10px;
  height: 50px;
  width: 50px;
  box-shadow: 3px 3px 5px #464646;
  cursor: pointer;
  transition: all 0.5s;
  margin: 0;
  z-index: 999;
}
.myk-btn:hover {
  opacity: 0.7;
}
.myk-btn img {
  width: 30px;
}

.myk-panel {
  position: fixed;
  right: 30px;
  bottom: 80px;
  background-color: #ece5dd;
  width: 300px;
  height: 0px;
  box-shadow: 0px 0px 10px #075e54;
  overflow-y: hidden;
  border-radius: 5px;
  transition: all 0.5s ease-out;
  z-index: 999;
}
.myk-panel .myk-list {
  background-color: #ffffff;
  overflow: hidden;
  display: block;
  padding: 20px 10px;
  color: #333;
  text-decoration: none;
  font-family: Arial, Helvetica, sans-serif;
  border-bottom: 2px solid #cccccc;
}
.myk-panel .myk-ava {
  width: 40px;
  float: left;
  margin-right: 20px;
}
.myk-panelhead {
  background-color: #25d366;
  text-align: center;
  color: white;
  height: 100px;
}

.myk-paneltitle {
  font-weight: lighter;
}
.myk-show {
  height: 400px;
}
.myk-panelbody {
  overflow-y: scroll;
  height: calc(100% - 100px);
}

@media only screen and (max-width: 400px) {
  .myk-panel {
    width: 100%;
    right: 0;
    top: 0;
    bottom: 0;
  }
  .myk-panel.myk-show {
    height: 100%;
  }
}
.myk-close {
  display: block;
  background-color: #075e54;
  cursor: pointer;
  opacity: 0.4;
  text-align: center;
  width: 50px;
  transition: ease all 0.3s;
  overflow: hidden;
}
.myk-close:hover {
  opacity: 0.6;
}