#request_chat_button {
  z-index: 2147483646; 
  position: fixed; 
  right:  30px; 
  bottom:  0;
  box-shadow: 2px 2px 2px;
}

#ichiba_chat_window {
  z-index: 2147483647; 
  position: fixed;
  background: #aaa;
  right:  30px; 
  bottom:  0;
  box-shadow: 2px 2px 2px;
  width: 30%;
  min-width: 400px;
  height: calc(80% - 40px);
}



.chat_title_bar {
  height: 40px;
  background: #03a9f4;
  margin: 0px;
}
.chat_iframe {
  border: 0;
  width: 100%;
  height: 95%;
}
.right {
  position: absolute;
  right: 10px;
  top: 10px;
}

.button {
  right:  30px; 
  bottom:  30px;
  display: block;
  width: 56px;
  height: 56px;
  background: #03a9f4;
  text-align: center;
  border-radius: 50%;
  transition: .3s;
  box-shadow: 0 2px 2px 0 rgba(0,0,0,.12), 0 2px 2px 0 rgba(0,0,0,.24);
}
.button:hover {/*ホバー時*/
  box-shadow: 0 4px 5px 0 rgba(0,0,0,.14), 0 1px 10px 0 rgba(0,0,0,.12), 0 2px 4px -1px rgba(0,0,0,.2);
}
.button i {/*中央のアイコン*/
  color: white;
  line-height: 56px;/*＝幅と高さ*/
  vertical-align: middle;
  font-size: 18px;/*サイズ*/
}

.small {
    width: 20px;
    height: 20px;
}

.ripple {
  position: relative;
  overflow: hidden;
}

.ripple .rp-effect {/*エフェクト*/
  position: absolute;
  border-radius: 50%;
  opacity: 0.35;/*波紋の濃さ*/
  transform: scale(0);
  background: #FFF;/*波紋色*/
  animation: ripple 700ms;
  pointer-events: none; 
}

@-webkit-keyframes ripple {
  to {
    opacity: 0;
    transform: scale(2.0);
  }
}

@keyframes ripple {
  to {
    opacity: 0;
    transform: scale(2.0);
  }
}