diff --git a/css/styles.css b/css/styles.css
new file mode 100644
index 0000000..2c45257
--- /dev/null
+++ b/css/styles.css
@@ -0,0 +1,111 @@
+
+a:link {
+  color: #0066ff;
+  text-decoration: none;
+}
+
+/* visited link */
+a:visited {
+  color: #0066ff;
+  text-decoration: none;
+}
+
+/* mouse over link */
+a:hover {
+  color: hotpink;
+  text-decoration: underline;
+}
+/* selected link */
+a:active {
+  color: #0066ff;
+  text-decoration: none;
+}
+.tooltip {
+  position: relative;
+  opacity: 1;
+  display: inline-block;
+  border-bottom: 1px dotted black;
+}
+
+.tooltip .tooltiptext {
+  visibility: hidden;
+  width: 280px;
+  background-color: #6E6E6E;
+  box-shadow: 4px 4px 6px #800000;
+  color: #FFFFFF;
+  text-align: left;
+  border-radius: 6px;
+  padding: 8px 0;
+  left: 100%
+  opacity: 1;
+  /* Position the tooltip */
+  position: absolute;
+  z-index: 1;
+}
+
+.tooltip:hover .tooltiptext {
+  right: 100%
+  opacity: 1;
+  visibility: visible;
+}
+.button {
+  border: none;
+  padding: 8px;
+  text-align: center;
+  text-decoration: none;
+  display: inline-block;
+  font-size: 14px;
+  font-weight: 500;
+  margin: 4px 2px;
+  border-radius: 8px;
+  box-shadow: 0px 8px 10px rgba(0,0,0,0.1);
+}
+
+.link:hover {background-color:rgb(140,140,140);background: rgb(140,140,140); color:white;}  
+.dropdown:hover .dropbtn {background-color:rgb(140,140,140);background: rgb(140,140,140); color:white;} 
+
+.dropbtn {
+  border: none;
+  padding: 8px;
+  text-align: center;
+  text-decoration: none;
+  display: inline-block;
+  font-size: 14px;
+  font-weight: 500;
+  margin: 4px 2px;
+  border-radius: 8px;
+  box-shadow: 0px 8px 10px rgba(0,0,0,0.1);
+}
+
+/* The container <div> - needed to position the dropdown content */
+.dropdown {
+  position: relative;
+  display: inline-block;
+}
+
+/* Dropdown Content (Hidden by Default) */
+.dropdown-content {
+  display: none;
+  position: absolute;
+  background-color: #f1f1f1;
+  min-width: 140px;
+  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
+  z-index: 1;
+}
+
+/* Links inside the dropdown */
+.dropdown-content a {
+  color: black;
+  padding: 6px 16px;
+  text-decoration: none;
+  display: block;
+}
+
+/* Change color of dropdown links on hover */
+.dropdown-content a:hover {background-color: #ddd;}
+
+/* Show the dropdown menu on hover */
+.dropdown:hover .dropdown-content {display: block;}
+
+table, td, th {border: .5px solid #d0d0d0; padding: 2px; border-collapse: collapse; text-align:center;}
+