chat.css

body {
  background-color: #36393f;
  color: #fff;
  font-family: sans-serif;
  font-size: 14px;
}


#chatbox {
  height: 400px;
  overflow-y: scroll;
  overflow-x: hidden;
  font-size: 25px;
  font-weight: normal;
  background-color: #36393f83;
}

.message {
  margin: 10px;
}

.message .username {
  font-weight: bold;
}

.message .timestamp {
  font-size: 12px;
  color: #aaa;
  margin-left: 5px;
}

#input-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 10px;
}

#username-input {
  display: block;
  margin-bottom: 10px;
  padding: 5px;
  width: 100%;
  border: none;
  border-radius: 5px;
  background-color: #2f3136;
  color: #fff;
  font-family: sans-serif;
  font-size: 14px;
}

#message-input {
  display: block;
  margin-bottom: 10px;
  padding: 5px;
  width: 100%;
  border: none;
  border-radius: 5px;
  background-color: #2f3136;
  color: #fff;
  font-family: sans-serif;
  font-size: 14px;
}

#submit {
  display: block;
  padding: 5px;
  width: 100%;
  border: none;
  border-radius: 5px;
  background-color: #7289da;
  color: #fff;
  font-family: sans-serif;
  font-size: 14px;
  cursor: pointer;
}
canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
  z-index: -1;
}

@media only screen and (max-width: 767px) {
 canvas{
    position: absolute;
        top: 0;
        left: -110%;
        width: auto;
        height: 75%;
 }