Take from http://moderndata.plot.ly/custom-styling-for-ipython-notebooks-with-3-lines-of-code/, modified for Gary Feng's Jupyter notebooks

garyfengJupyterStyle.css

<style>
/* 
Taken from http://moderndata.plot.ly/custom-styling-for-ipython-notebooks-with-3-lines-of-code/
Modified for Gary Feng's Jupyter notebooks
*/


/* 
html {
  font-size: 62.5% !important; }
body {
  font-size: 1.5em !important; /* currently ems cause chrome bug misinterpreting rems on body element */
/*  line-height: 1.6 !important;
  font-weight: 400 !important;
  font-family: "Raleway", "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif !important;
  color: #222 !important; }
*/

div{ border-radius: 0px !important;  }
div.CodeMirror-sizer{ background: rgb(244, 244, 248) !important; }
div.input_area{ background: rgb(244, 244, 248) !important; }

div.out_prompt_overlay:hover{ background: rgb(244, 244, 248) !important; }
div.input_prompt:hover{ background: rgb(244, 244, 248) !important; }

/*
h1, h2, h3, h4, h5, h6 {
  color: #333 !important;
  margin-top: 0 !important;
  margin-bottom: 2rem !important;
  font-weight: 300 !important; }
h1 { font-size: 4.0rem !important; line-height: 1.2 !important;  letter-spacing: -.1rem !important;}
h2 { font-size: 3.6rem !important; line-height: 1.25 !important; letter-spacing: -.1rem !important; }
h3 { font-size: 3.0rem !important; line-height: 1.3 !important;  letter-spacing: -.1rem !important; }
h4 { font-size: 2.4rem !important; line-height: 1.35 !important; letter-spacing: -.08rem !important; }
h5 { font-size: 1.8rem !important; line-height: 1.5 !important;  letter-spacing: -.05rem !important; }
h6 { font-size: 1.5rem !important; line-height: 1.6 !important;  letter-spacing: 0 !important; }

@media (min-width: 550px) {
  h1 { font-size: 5.0rem !important; }
  h2 { font-size: 4.2rem !important; }
  h3 { font-size: 3.6rem !important; }
  h4 { font-size: 3.0rem !important; }
  h5 { font-size: 2.4rem !important; }
  h6 { font-size: 1.5rem !important; }
}

p {
  margin-top: 0 !important; }
  
a {
  color: #1EAEDB !important; }
a:hover {
  color: #0FA0CE !important; }
*/

code {
  padding: .2rem .5rem !important;
  margin: 0 .2rem !important;
  font-size: 90% !important;
  white-space: nowrap !important;
  background: #F1F1F1 !important;
  border: 1px solid #E1E1E1 !important;
  border-radius: 4px !important; }
pre > code {
  display: block !important;
  padding: 1rem 1.5rem !important;
  white-space: pre !important; }
  
button{ border-radius: 0px !important; }
.navbar-inner{ background-image: none !important;  }
select, textarea{ border-radius: 0px !important; }

</style>