added preformated styles

style/master.css

@@ -1,19 +1,98 @@
 @import url('https://fonts.googleapis.com/css?family=Open+Sans:400,800');
+
 html {
   transition: .6s;
   font-family: 'Open Sans', sans-serif;
   background-color: #c3c3c3;
 }
+
 h1 {
   font-size: 3em;
   text-align: center;
+  color: #333;
+  text-transform: uppercase;
 }
+
+h2 {
+  color: #333;
+  text-transform: uppercase;
+}
+
+h3 {
+  color: #444;
+  text-transform: capitalize;
+}
+
+h4 {
+  color: #444;
+  text-transform: capitalize;
+}
+
+h5 {
+  color: #555;
+  text-transform: lowercase;
+  font-weight: normal;
+}
+
+h6 {
+  color: #555;
+  text-transform: lowercase;
+  font-weight: normal;
+}
+
+table {
+  border-collapse: collapse;
+  border: 1px solid black;
+  margin: 1em 0;
+}
+
+th {
+  background-color: #63bf3c;
+  color: white;
+}
+
+td, th {
+  /* border: 1px solid black; */
+  padding: .2em .5em;
+}
+
+tr:nth-child(even) {
+  background-color: #f2f2f2;
+}
+
+button {
+  display: block;
+  border: 1px solid #777777;
+  padding: .5em 1em;
+  margin: 1em .25em;
+}
+
+pre {
+  max-height: calc(50vh - 9em);
+  background: #f4f4f4;
+  border: 1px solid #ddd;
+  border-left: 3px solid #a0c391;
+  color: #666;
+  page-break-inside: avoid;
+  font-family: monospace;
+  font-size: 15px;
+  line-height: 1.6;
+  margin-bottom: 1.6em;
+  max-width: 100%;
+  overflow: auto;
+  padding: 1em 1.5em;
+  display: block;
+  word-wrap: break-word;
+}
+
 .even {
   background-color: #000;
 }
+
 .odd {
   background-color: #5f5f5f;
 }
+
 .search {
   background-image: url('/pic/search.png');
   background-position: 10px 12px;
@@ -22,6 +101,7 @@ h1 {
   padding: 12px 20px 12px 40px;
   border: 1px solid #ddd;
 }
+
 .button {
   -webkit-appearance: none;
   border: none;
@@ -33,6 +113,7 @@ h1 {
   background-color: #4CAF50;
   color: white;
 }
+
 .hover:hover {
   background-color: #4CAF50;
   cursor: pointer;