markdown-preview-user-setting.json

{
  "enable_highlight": true,
  "enable_pygments": true,
  "guess_language": true,
  "css": "path/to/style-for-sublimetext-markdown-preview.css",
  "strip_yaml_front_matter": true,
  "image_path_conversion": "relative",
  "enabled_extensions": ["extra", "github", "toc", "codehilite(guess_lang=True,pygments_style=friendly,linenums=False)","headerid", "meta", "sane_lists", "smarty", "wikilinks", "admonition"],
}

style-for-sublimetext-markdown-preview.css

*,
*:before,
*:after {
  box-sizing: border-box;
}

body {
  font-family: "Helvetica Neue", "PingFang-SC-Regular","STHeiti", "Helvetica","Arial","Verdana","sans-serif","Microsoft YaHei";
  margin: 0;
}

em {
  color: #333;
}

p {
  line-height: 1.5em;
}

p > img {
  display: block;
  margin: 2em auto;
  max-width: 100%;
}

a {
  color: #4183C4;
}

hr {
  border-top: 1px solid #aaa;
  border-bottom: none;
}

h2,
h3 {
  font-weight: 300;
}

h2 {
  color: #cd242a;
  font-size: 2em;
}

h3 {
  color: #384992;
  font-size: 1.5em;
}

h4 {
  font-size: 1.2em;
}

blockquote > p {
  margin: 0;
}

blockquote {
  border-left: 2px solid #ccc;
  margin: 0;
  padding: 10px 20px;
  margin-left: 25px;
}

h1:first-child {
  text-align: center;
}

li {
  line-height: 1.7em;
}

li > p {
  margin: 0 0 5px;
}

code {
  padding: 2px;
  font-family: Inconsolata, "Ubuntu Mono", Consolas, monospace;
  background: #eee;
  border-radius: 4px;
  margin: 0 5px;
}

.codehilite pre {
  overflow: auto;
  padding: 1em;
  font-family: Inconsolata, "Ubuntu Mono", Consolas, monospace;
  font-size: 0.9em;
  line-height: 1.5em;
  border-radius: 5px;
}


article.markdown-body {
  //width: 80%;
  margin: auto;
}

.admonition {
  padding: 15px;
  margin-bottom: 20px;
  border: 1px solid transparent;
  border-radius: 4px;
  text-align: left;
}

.admonition.note {
  color: #3a87ad;
  background-color: #d9edf7;
  border-color: #bce8f1;
}

.admonition-title {
  font-weight: bold;
  text-align: left;
}

/* fixed TOC */

.toc {
  position: fixed;
  font-size: 0.8em;
  border-right: 1px dashed #ccc;
  width: 210px;
  height: 100%;
  left: 0;
  top: 0;
  background: #f9f9f9;
}

.toc:before {
  content: "In this page";
  display: block;
  margin: 0;
  margin-top: 10px;
  padding: 0 10px;
  border-left: 5px solid #03a9f4;
  font-size: 1.3em;
}

article.markdown-body {
  padding-left: 230px;
  padding-right: 20px;
}

.toc li {
  list-style: none;
}
.toc ul {
  padding-left: 15px;
}
.toc a {
  text-decoration: none;
}


/* Temporary */

p > img {
  max-width: 70%;
}

p > small {
  text-align: right;
}

/* table */

.markdown-body table {
  border-collapse: collapse;
  border-spacing: 0;
  padding-bottom: 10px;
  display: block;
  width: 100%;
  overflow: auto;
  word-break: keep-all;
}

.markdown-body td,
.markdown-body th {
  padding: 0;
}

.markdown-body table th {
  font-weight: bold;
}

.markdown-body table th,
.markdown-body table td {
  padding: 6px 13px;
  border: 1px solid #ddd;
}

.markdown-body table tr {
  background-color: #fff;
  border-top: 1px solid #ccc;
}

.markdown-body table tr:nth-child(2n) {
  background-color: #f8f8f8;
}

Install Markdown Preview via Package Control

Here is the GitHub repo of the Markdown Preview