implemented autocompletion

static/style.css

@@ -7,6 +7,7 @@ body {
 body {
   overflow: hidden;
   background-color: slategrey;
+  font-family: Arial, Helvetica, sans-serif;
 }
 
 .right {
@@ -72,3 +73,63 @@ span {
   left: 0;
   top: 0;
 }
+
+#submitdiv {
+  /*position: relative;*/
+  width: 500px;
+}
+
+/*Things I've stolen from https://www.w3schools.com/howto/howto_js_autocomplete.asp*/
+.autocomplete {
+  /*the container must be positioned relative:*/
+  position: relative;
+  display: inline-block;
+  width: 300px;
+}
+
+input {
+  border: 1px solid transparent;
+  background-color: #f1f1f1;
+  padding: 10px;
+  font-size: 16px;
+}
+
+input[type="text"] {
+  background-color: #f1f1f1;
+  width: 100%;
+}
+
+input[type="submit"] {
+  background-color: DodgerBlue;
+  color: #fff;
+}
+
+.autocomplete-items {
+  position: absolute;
+  border: 1px solid #d4d4d4;
+  border-bottom: none;
+  border-top: none;
+  z-index: 99;
+  /*position the autocomplete items to be the same width as the container:*/
+  top: 100%;
+  left: 0;
+  right: 0;
+}
+
+.autocomplete-items div {
+  padding: 10px;
+  cursor: pointer;
+  background-color: #fff;
+  border-bottom: 1px solid #d4d4d4;
+}
+
+.autocomplete-items div:hover {
+  /*when hovering an item:*/
+  background-color: #e9e9e9;
+}
+
+.autocomplete-active {
+  /*when navigating through the items using the arrow keys:*/
+  background-color: DodgerBlue !important;
+  color: #ffffff;
+}