Added style html file

src/main/java/ic/doc/web/style.html

+<style>body {
+    font-family: Helvetica, sans-serif;
+ }
+
+ .container {
+    width: 500px;
+    height: 350px;
+    background-color: rgb(238, 238, 238);
+    position: fixed;
+    border: 2px solid rgb(190, 190, 190);
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -90%);
+    border-radius: 20px;
+    padding:40px;
+ }
+ 
+ h1 {
+    font-family: Helvetica, sans-serif;
+    margin-top: 30px;
+ }
+  hr {
+    border: 3px solid rgb(190, 190, 190);
+    border-radius: 5px;
+ }
+ 
+ input[type=text], select {
+    width: 100%;
+    padding: 12px 20px;
+    margin: 8px 0;
+    display: inline-block;
+    border: 1px solid #ccc;
+    border-radius: 4px;
+    box-sizing: border-box;
+}
+
+input[type=submit], button {
+    width: 100%;
+    background-color: #4CAF50;
+    color: white;
+    padding: 14px 20px;
+    margin: 8px 0;
+    border: none;
+    border-radius: 4px;
+    cursor: pointer;
+ }
+
+ input[type=submit]:hover {
+    background-color: #45a049;
+ }
+
+ form {
+    margin-top: 30px;
+ }</style>
\ No newline at end of file