Useful CSS snippet for creating a new website. Sets typography for vertical rhythm and icon font for icons, as well as mobile, tablet, and large screen query. Based on 32px baseline height and 22px font-size for body.

style.css

/*** GLOBAL ***/
/**************/
img, embed, object, video {
  max-width: 100%;
}

@font-face {
  font-family: 'sicanstudios-icons';
  src:url('./fonts/sicanstudios-icons.eot');
}

@font-face {
  font-family: 'sicanstudios-icons';
  font-weight: normal;
  font-style: normal;
}

/* Use the following CSS code if you want to use data attributes for inserting your icons */
[data-icon]:after {
  font-family: 'sicanstudios-icons';
  content: attr(data-icon);
  speak: none;
  -webkit-font-feature-settings:"liga","dlig";-moz-font-feature-settings:"liga=1, dlig=1";-moz-font-feature-settings:"liga","dlig";-ms-font-feature-settings:"liga","dlig";-o-font-feature-settings:"liga","dlig";
  font-feature-settings:"liga","dlig";
  text-rendering:optimizeLegibility;
  font-weight: normal;
  font-variant: normal;
  text-transform: none;
  line-height: 1;
  -webkit-font-smoothing: antialiased;
  text-indent: 9999px;
}

body {
  font-family: 'PT Sans', Helvetica, serif;
  -webkit-font-smoothing: antialiased;
  font-size: 1em; /* 16px */
  line-height: 1.77777778em; /* 32px */
  background: url('../images/line.jpg');
  color: #59544d;
  width: 95%;
  margin: 0 auto;
}

::-moz-selection {
  background: #59544d;
  color: #fdf4ea;
}

::selection {
  background: #59544d;
  color: #fdf4ea;
}

img, a, a:visited {
  -moz-transition: color 0.5s, background 0.5s, box-shadow 0.4s;
  -webkit-transition: color 0.5s, background 0.5s, box-shadow 0.4s;
  -o-transition: color 0.5s, background 0.5s, box-shadow 0.4s;
  transition: color 0.5s, background 0.5s, box-shadow 0.4s;
}

a, a:visited {
  color: #4ea38d;
  text-decoration: none;
}

/* on hover, zoom thumb image */
a.img:hover img {
  -moz-transform: scale(1.03);
  -webkit-transform: scale(1.03);
  -o-transform: scale(1.03);
  transform: scale(1.03);
}

/* smooth animations */
a.img img {
  -moz-transition: all 0.5s;
  -webkit-transition: all 0.5s;
  -o-transition: all 0.5s;
  transition: all 0.5s;
}

/* contain the zoomed thumb inside a element */
.img, .img:hover {
  text-decoration: none;
  overflow: hidden;
  display: inline-block;
}

a:hover {
  color: #59544d;
  cursor: pointer;
  text-decoration: underline;
}

/* if link is an icon hides text and shows icon */
.icon, .icon:visited {
  font-size: 32px; 
  text-indent: -9999px;
  display: inline-block;
  position: relative;
  min-width: 32px;
  color: #59544d;
}

/* link colour */
.icon:hover {
  color: #4ea38d;
}

/* shows the icon */
.icon:before {
  text-indent: 0;
  position: absolute;
  left: 0;
  top: 0;
}

/*** TYPOGRAPHY ***/
/******************/

h1 {
  font-size: 2.28571429em; /* 48px */
  line-height: 1.33333333em; /* 64px */
  margin-bottom: 0.66665em; /* 32px */
}

h2 {  
  font-size: 1.1429em; /* 24px */
  line-height: 1.33333333em; /* 32px */
  margin-top: 1.33333333em;
  margin-bottom: 0em;
}

h3 {
  font-size: 0.85714286em; /* 18px */
  line-height: 1.77777778em; /* 32px */
  margin-bottom: 1.77777778em;
  margin-top: 0em;
  font-weight: normal;
  text-transform: uppercase;
  color: #a2988a;
}

p, ul, ol, blockquote, pre {
  font-size: 1em; /* 16px */
  line-height: 1.45454545em; /* 32px */
  margin: 0 0 1.45454545em 0;
  padding: 0;
}

ul li, ol li {
  padding-left: 1em;
  margin-left: 0.9em;
}

/* slightly bigger padding because of numbers  */
ol li {
  padding-left: 0.7em;
  margin-left: 1.2em;
}

blockquote {
  border-left: solid 5px #4ea38d;
  background: rgba(255,255,255,0.7);
  padding-left: 1.6em;
  font-style: italic;
  font-weight: bold;
}

/* code has different font/size; realign */
pre {
  border-left: solid 5px #4ea38d;
  background: rgba(255,255,255,0.7);
  margin: 0 0 1.77777778em 0;
  line-height: 1.77777778em;
  padding-left: 2em; 
}

code {
  font-family: 'Inconsolata', 'Monaco', 'Courier New', monospace;
  font-size: 0.928em;
  white-space: pre-wrap;
  white-space: -moz-pre-wrap !important;
  white-space: -pre-wrap;
  white-space: -o-pre-wrap;
  word-wrap: break-word;
}


/* tablet screen */
@media screen and (min-width: 768px){
  body {
    font-size: 1.125em; /* base font: 18px */
    max-width: 640px;
  }
}


/* large screen */
@media screen and (min-width: 1330px){
  body {
    font-size: 1.375em; /* base font: 22px */
    max-width: 734px;
  }
}