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Decent and Elegant Way To Highlight Code Syntax In Jekyll

All we need to worry about _sass/_highlights.scss. Two apprach i like go through -

First visit This web page to see live example.

Copy the following piece of code and paste or replace all code there in _highlights.scss file.

Approach_One

highlight { 
  background-color: #ffffff;
  padding: 5px 10px;
  margin: 20px 0;
}

.highlight pre {
  /* overflow: scroll; Prefer no word wrap? Uncomment this line and comment out the 2 lines below. */
  word-break: break-all;
  word-wrap: break-word;
}


code {
  font-family:'Bitstream Vera Sans Mono','Courier', monospace;
  font-size: 15px;
  font-weight: bold;
}

.highlight {
  background-color: #f6f8fa;
  margin-bottom: 1.5em;
  pre {
    overflow-y: auto;
    position: relative;
    margin: 0;
    padding: 1em;
  }
  .lineno { padding-right: 24px; color: lighten(#333332,50);}
  .hll { background-color: #ffffcc }
  .c { color: #999988; font-style: italic } /* Comment */
  .err { color: #a61717; background-color: #e3d2d2 } /* Error */
  .k { color: #000000; font-weight: bold } /* Keyword */
  .o { color: #000000; font-weight: bold } /* Operator */
  .cm { color: #999988; font-style: italic } /* Comment.Multiline */
  .cp { color: #999999; font-weight: bold; font-style: italic } /* Comment.Preproc */
  .c1 { color: #999988; font-style: italic } /* Comment.Single */
  .cs { color: #999999; font-weight: bold; font-style: italic } /* Comment.Special */
  .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
  .ge { color: #000000; font-style: italic } /* Generic.Emph */
  .gr { color: #aa0000 } /* Generic.Error */
  .gh { color: #999999 } /* Generic.Heading */
  .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
  .go { color: #888888 } /* Generic.Output */
  .gp { color: #555555 } /* Generic.Prompt */
  .gs { font-weight: bold } /* Generic.Strong */
  .gu { color: #aaaaaa } /* Generic.Subheading */
  .gt { color: #aa0000 } /* Generic.Traceback */
  .kc { color: #000000; font-weight: bold } /* Keyword.Constant */
  .kd { color: #000000; font-weight: bold } /* Keyword.Declaration */
  .kn { color: #000000; font-weight: bold } /* Keyword.Namespace */
  .kp { color: #000000; font-weight: bold } /* Keyword.Pseudo */
  .kr { color: #000000; font-weight: bold } /* Keyword.Reserved */
  .kt { color: #445588; font-weight: bold } /* Keyword.Type */
  .m { color: #009999 } /* Literal.Number */
  .s { color: #d01040 } /* Literal.String */
  .na { color: #008080 } /* Name.Attribute */
  .nb { color: #0086B3 } /* Name.Builtin */
  .nc { color: #445588; font-weight: bold } /* Name.Class */
  .no { color: #008080 } /* Name.Constant */
  .nd { color: #3c5d5d; font-weight: bold } /* Name.Decorator */
  .ni { color: #800080 } /* Name.Entity */
  .ne { color: #990000; font-weight: bold } /* Name.Exception */
  .nf { color: #990000; font-weight: bold } /* Name.Function */
  .nl { color: #990000; font-weight: bold } /* Name.Label */
  .nn { color: #555555 } /* Name.Namespace */
  .nt { color: #000080 } /* Name.Tag */
  .nv { color: #008080 } /* Name.Variable */
  .ow { color: #000000; font-weight: bold } /* Operator.Word */
  .w { color: #bbbbbb } /* Text.Whitespace */
  .mf { color: #009999 } /* Literal.Number.Float */
  .mh { color: #009999 } /* Literal.Number.Hex */
  .mi { color: #009999 } /* Literal.Number.Integer */
  .mo { color: #009999 } /* Literal.Number.Oct */
  .sb { color: #d01040 } /* Literal.String.Backtick */
  .sc { color: #d01040 } /* Literal.String.Char */
  .sd { color: #d01040 } /* Literal.String.Doc */
  .s2 { color: #d01040 } /* Literal.String.Double */
  .se { color: #d01040 } /* Literal.String.Escape */
  .sh { color: #d01040 } /* Literal.String.Heredoc */
  .si { color: #d01040 } /* Literal.String.Interpol */
  .sx { color: #d01040 } /* Literal.String.Other */
  .sr { color: #009926 } /* Literal.String.Regex */
  .s1 { color: #d01040 } /* Literal.String.Single */
  .ss { color: #990073 } /* Literal.String.Symbol */
  .bp { color: #999999 } /* Name.Builtin.Pseudo */
  .vc { color: #008080 } /* Name.Variable.Class */
  .vg { color: #008080 } /* Name.Variable.Global */
  .vi { color: #008080 } /* Name.Variable.Instance */
  .il { color: #009999 } /* Literal.Number.Integer.Long */
}

Outcome

app_one

Otherwise

Approach two

Use following piece of code. It's just change the syntax color, look different, nothing else.

.highlight .c { color: #586E75 } /* Comment */
.highlight .err { color: #93A1A1 } /* Error */
.highlight .g { color: #93A1A1 } /* Generic */
.highlight .k { color: #859900 } /* Keyword */
.highlight .l { color: #93A1A1 } /* Literal */
.highlight .n { color: #93A1A1 } /* Name */
.highlight .o { color: #859900 } /* Operator */
.highlight .x { color: #CB4B16 } /* Other */
.highlight .p { color: #93A1A1 } /* Punctuation */
.highlight .cm { color: #586E75 } /* Comment.Multiline */
.highlight .cp { color: #859900 } /* Comment.Preproc */
.highlight .c1 { color: #586E75 } /* Comment.Single */
.highlight .cs { color: #859900 } /* Comment.Special */
.highlight .gd { color: #2AA198 } /* Generic.Deleted */
.highlight .ge { color: #93A1A1; font-style: italic } /* Generic.Emph */
.highlight .gr { color: #DC322F } /* Generic.Error */
.highlight .gh { color: #CB4B16 } /* Generic.Heading */
.highlight .gi { color: #859900 } /* Generic.Inserted */
.highlight .go { color: #93A1A1 } /* Generic.Output */
.highlight .gp { color: #93A1A1 } /* Generic.Prompt */
.highlight .gs { color: #93A1A1; font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #CB4B16 } /* Generic.Subheading */
.highlight .gt { color: #93A1A1 } /* Generic.Traceback */
.highlight .kc { color: #CB4B16 } /* Keyword.Constant */
.highlight .kd { color: #268BD2 } /* Keyword.Declaration */
.highlight .kn { color: #859900 } /* Keyword.Namespace */
.highlight .kp { color: #859900 } /* Keyword.Pseudo */
.highlight .kr { color: #268BD2 } /* Keyword.Reserved */
.highlight .kt { color: #DC322F } /* Keyword.Type */
.highlight .ld { color: #93A1A1 } /* Literal.Date */
.highlight .m { color: #2AA198 } /* Literal.Number */
.highlight .s { color: #2AA198 } /* Literal.String */
.highlight .na { color: #93A1A1 } /* Name.Attribute */
.highlight .nb { color: #B58900 } /* Name.Builtin */
.highlight .nc { color: #268BD2 } /* Name.Class */
.highlight .no { color: #CB4B16 } /* Name.Constant */
.highlight .nd { color: #268BD2 } /* Name.Decorator */
.highlight .ni { color: #CB4B16 } /* Name.Entity */
.highlight .ne { color: #CB4B16 } /* Name.Exception */
.highlight .nf { color: #268BD2 } /* Name.Function */
.highlight .nl { color: #93A1A1 } /* Name.Label */
.highlight .nn { color: #93A1A1 } /* Name.Namespace */
.highlight .nx { color: #555 } /* Name.Other */
.highlight .py { color: #93A1A1 } /* Name.Property */
.highlight .nt { color: #268BD2 } /* Name.Tag */
.highlight .nv { color: #268BD2 } /* Name.Variable */
.highlight .ow { color: #859900 } /* Operator.Word */
.highlight .w { color: #93A1A1 } /* Text.Whitespace */
.highlight .mf { color: #2AA198 } /* Literal.Number.Float */
.highlight .mh { color: #2AA198 } /* Literal.Number.Hex */
.highlight .mi { color: #2AA198 } /* Literal.Number.Integer */
.highlight .mo { color: #2AA198 } /* Literal.Number.Oct */
.highlight .sb { color: #586E75 } /* Literal.String.Backtick */
.highlight .sc { color: #2AA198 } /* Literal.String.Char */
.highlight .sd { color: #93A1A1 } /* Literal.String.Doc */
.highlight .s2 { color: #2AA198 } /* Literal.String.Double */
.highlight .se { color: #CB4B16 } /* Literal.String.Escape */
.highlight .sh { color: #93A1A1 } /* Literal.String.Heredoc */
.highlight .si { color: #2AA198 } /* Literal.String.Interpol */
.highlight .sx { color: #2AA198 } /* Literal.String.Other */
.highlight .sr { color: #DC322F } /* Literal.String.Regex */
.highlight .s1 { color: #2AA198 } /* Literal.String.Single */
.highlight .ss { color: #2AA198 } /* Literal.String.Symbol */
.highlight .bp { color: #268BD2 } /* Name.Builtin.Pseudo */
.highlight .vc { color: #268BD2 } /* Name.Variable.Class */
.highlight .vg { color: #268BD2 } /* Name.Variable.Global */
.highlight .vi { color: #268BD2 } /* Name.Variable.Instance */
.highlight .il { color: #2AA198 } /* Literal.Number.Integer.Long */
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