web/chatview.css

body {
  margin: 0;
  overflow: hidden;
}

#container {
  position: relative;
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  margin: 0;
  padding: 0;
  justify-content: flex-end;
}

#messages {
  position: relative;
  z-index: 0;
  width: 100%;
  overflow-y: scroll;
  height: auto;
  max-height: calc(100% - 50px);
}

#sendMessage {
  display: flex;
  position: relative;
  border-top : 2px solid #d3d3d3;
  margin-left: 10px;
  margin-right: 10px;
  padding-left: 8px;
  overflow: hidden;
  padding-top: 8px;
  padding-bottom: 8px;
  align-items: center;

}

#message {
  flex: 1;
  margin-right: 10px;
  border: 0;
  overflow-y: scroll;
  color: black;
  max-height: 150px;
  padding-left: 8px;
  resize: none;
}

#message:focus,
#message.focus {
  outline: none;
}

input[placeholder], [placeholder], *[placeholder] {
    color: #d3d3d3;
}

#sendBtn {
  border-radius: 50%;
  border: 0;
  width: 40px;
  height: 40px;
  align-self: center;
  transition: all 0.3s ease;
}

#sendBtn.hover,
#sendBtn:hover {
  background: #bae5f0;
}

#sendBtn.hover svg,
#sendBtn:hover svg {
  fill: black;
}

#sendMessage svg {
  fill: #666;
  padding: 5px;
  width: 100%;
  height: 100%;
  transition: all 0.3s ease;
}


.wc {
  will-change: transform;
}

.status_circle {
  fill: #A0A0A0;
  -webkit-animation: circle-dance;
  -webkit-animation-duration: 0.8s;
  -webkit-animation-iteration-count: infinite;
  -webkit-animation-direction: alternate;
  -webkit-animation-timing-function: ease-in-out;
}

.anim-first {
  -webkit-animation-delay: 0.7s;
}

.anim-second {
  -webkit-animation-delay: 0.9s;
}

.anim-third {
  -webkit-animation-delay: 1.1s;
}

@-webkit-keyframes circle-dance {
  0%,50% {
    -webkit-transform: translateY(0);
    fill: #A0A0A0;
  }
  100% {
    -webkit-transform: translateY(-8px);
    fill: #000;
  }
}

.status-check {
    stroke-dasharray: 17;
    stroke-dashoffset: 17;
    -webkit-animation: dash-check;
    -webkit-animation-duration: 0.4s;
    -webkit-animation-delay: 0.7s;
    -webkit-animation-fill-mode: forwards;
    -webkit-animation-timing-function: ease-in-out;
    display: none;
}

.message--sent .status-check {
        display: inline-block;
}

@-webkit-keyframes dash-check{
  from {
    stroke-dashoffset: 17;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.status-x {
  stroke-dasharray: 12;
  stroke-dashoffset: 12;
  -webkit-animation: dash-x;
  -webkit-animation-duration: 0.2s;
  -webkit-animation-fill-mode: forwards;
  -webkit-animation-timing-function: ease-in-out;
}

.x-first {
  -webkit-animation-delay: 0.7s;
}

.x-second {
  -webkit-animation-delay: 0.9s;
}

@-webkit-keyframes dash-x{
  from {
    stroke-dashoffset: 12;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.message_wrapper {
    transform: scale(0);
    max-width: 50%;
    margin: 10px 0;
    display: inline-block;
    padding: 10px;
    border-radius: 10px;
    position: relative;
    -webkit-animation: talk;
    -webkit-animation-duration: 0.3s;
    -webkit-animation-delay: 0.1s;
    -webkit-animation-fill-mode: forwards;
    -webkit-animation-timing-function: ease-in-out;
}

.message {
    font: 0.875em "Open sans",Helvetica,"Segoe UI",sans-serif;
    margin: 0;
    display: flex;
    justify-content: flex-start;
    align-items: top;
    overflow: hidden;
}

pre {
  font : inherit;
  font-family : inherit;
  font-size : inherit;
  font-style : inherit;
  font-variant : inherit;
  font-weight : inherit;
  margin: 0;
  padding: 0;
}

.message_out {
    flex-direction: row-reverse;
}

.message_sender {
    display: none;
}

.sender_image {
    border-radius: 50%;
    transition: transform 0.2s ease-in-out;
    margin: 10px;
}

.message_in .sender_image {
    -webkit-animation-name: enter-stage-left;
    -webkit-animation-duration: 0.2s;
    -webkit-animation-timing-function: ease-in-out;
}

.message_out .sender_image {
    -webkit-animation-name: enter-stage-right;
    -webkit-animation-duration: 0.2s;
    -webkit-animation-timing-function: ease-in-out;
}

@-webkit-keyframes enter-stage-left {
    from {
      transform: translateX(-100%);
    }
    to {
      transform: translateX(0);
    }
}

@-webkit-keyframes enter-stage-right {
    from {
      transform: translateX(100%);
    }
    to {
      transform: translateX(0);
    }
}

.message_out > .message_wrapper {
    background-color: #cfebf5;
    border-top-right-radius: 0;
    transform-origin: top right;
}

.message_out + .message_out > .message_wrapper {
    border-top-right-radius: 10px;
}

.message_in > .message_wrapper {
    background-color: #DEDEE0;
    border-top-left-radius: 0;
    transform-origin: top left;
}

.message_in + .message_in > .message_wrapper {
    border-top-left-radius: 10px;
}

.message_timestamp {
    font-size: 0.8em;
    margin-top: 0.5em;
    opacity: 1;
    transition: opacity 0.5s ease-in-out;
    line-height: 1em;
    display: inline-block;
}

.sent-checkmark {
    margin-left: 0.313em;
}

.message_in .message_timestamp {
    color: #9E9E9E;
}

@-webkit-keyframes fade-in {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
}

.message_text {
    word-wrap: break-word;
    display: block;
}

@-webkit-keyframes talk {
    from {
      transform: scale(0);
    }
    to {
      transform: scale(1);
    }
}

.message_in > .message_wrapper:before {
    content: "";
    width: 10px;
    height: 10px;
    position: absolute;
    left: -10px;
    top: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E %3Cpath d= 'M10,0 L0,0 C10,0 10,10 10,10' fill='%23DEDEE0'/%3E %3C/svg%3E");
    transform-origin: top left;
}

.message_in + .message_in > .message_wrapper:before {
    display: none;
}

.message_out + .message_out > .message_wrapper:after {
    display: none;
}

.message_out > .message_wrapper:after {
    content: "";
    width: 10px;
    height: 10px;
    position: absolute;
    right: -10px;
    top: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E %3Cpath d= 'M0,0 L10,0 C0,0 0,10 0,10' fill='%23cfebf5'/%3E %3C/svg%3E");
    transform-origin: top right;
}

.message_delivery_status {
    margin: 10px 10px;
    color: #A0A0A0;
    opacity: 0;
    -webkit-animation-name: fade-in;
    -webkit-animation-duration: 0.2s;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-delay: 0.4s;
    -webkit-animation-fill-mode: forwards;
    transition: opacity 0.5s ease-in-out;
}

.message_in + .message_in .sender_image {
    opacity: 0;
}

.message_out + .message_out .sender_image {
    opacity: 0;
}