chat functions

public/css/components.css

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+html {
+    width: 100%;
+    height: 100%;
+    font-family: Arial, sans-serif
+}
+
+body {
+    width: 100%;
+    height: 100%;
+    padding: 0;
+    margin: 0;
+    overflow: hidden;
+}
+
+header {
+    height: 3em;
+}
+
+main {
+    display: grid;
+    grid-template-columns: 80% 20%;
+    height: calc(100% - 3em);
+}
+
+#game {
+    height: 100%;
+    grid-column-start: 1;
+}
+
+#chat {
+    border-left: #7d7d7d solid 2px;
+    height: 100%;
+    grid-column-start: 2;
+}
+
+#messages {
+    height: calc(100% - 5em - 3em);
+    overflow-y: scroll;
+    padding: 5px;
+}
+
+.log {
+    list-style-type: none;
+    padding: 5px;
+    font-weight: bold;
+    color: #424242;
+    text-align: center;
+}
+
+.message {
+    list-style-type: none;
+    margin: 5px;
+    border-radius: 5px;
+    background: #0079a5;
+    color: #fff;
+    padding: 5px 5px 5px 15px;
+    position: relative;
+}
+
+.me:before {
+    content: "";
+    width: 0;
+    height: 0;
+    position: absolute;
+    border-left: 15px solid #0079a5;
+    border-right: 15px solid transparent;
+    border-top: 15px solid #0079a5;
+    border-bottom: 15px solid transparent;
+    right: -10px;
+    top: 0;
+}
+
+.others:before {
+    content: "";
+    width: 0;
+    height: 0;
+    position: absolute;
+    border-left: 15px solid transparent;
+    border-right: 15px solid #0079a5;
+    border-top: 15px solid #0079a5;
+    border-bottom: 15px solid transparent;
+    left: -10px;
+    top: 0;
+}
+
+.username {
+    font-weight: bold;
+}
+
+.messageBody {
+
+}
+
+.messageBody::before {
+    content: '\A';
+    white-space: pre;
+}
+
+#message_form {
+    height: 5em;
+}
+
+.material-icon {
+    font-family: Material Icons, sans-serif !important;
+    font-weight: 400;
+    font-style: normal;
+    font-size: 24px;
+    line-height: 1;
+    letter-spacing: normal;
+    text-transform: none;
+    display: inline-block;
+    white-space: nowrap;
+    word-wrap: normal;
+    direction: ltr;
+    -webkit-font-feature-settings: "liga";
+    -webkit-font-smoothing: antialiased;
+}

public/css/header.css

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+header {
+    box-shadow: 1px 1px 10px rgba(0, 0, 0, 0.5);
+    overflow: hidden;
+    -webkit-user-select: none;
+    background-color: #7d7d7d;
+    color: #ffffff;
+    height: 3em;
+    padding-top: 10px;
+}
+
+.title {
+    text-align: center;
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    font-size: 2em;
+    vertical-align: central;
+}