style.css

/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}

/* Extra Resetting */
/*-----------------------------------------*/

* {
   box-sizing: border-box;
   outline: none;
}

*:focus {
   outline: thin dotted;
}

strong, b, strong *, b * {
  font-style: normal;
  font-weight: bold !important;
}

em, i, em *, i * {
  font-style: italic;
}

fieldset,
img,
a img {
  border: 0;
}

img {
   height: auto;
   max-width: 100%;
}

/* Global */
/*-----------------------------------------*/

html {
   font-size: 16px;
   font-weight: 300;
}

body {
  color: #636363;
  font-family: 'Roboto', sans-serif;
  font-weight: 100;
  line-height: 1.5;
}

h1 {
  color: #303030;    
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.25;
  margin-top: 0;
  margin-bottom: 1.5rem;
  text-align: center;
}

h2 {
  color: #969696;
  font-size: 1.75rem;
  font-weight: 700;
  margin: 2rem 0 1.5rem;
}

p {
  margin-bottom: 1.5rem;
}

ul, ol {
  margin-bottom: 1.5em;
}

a {
  color: #e2231a;
  text-decoration: none;
  font-weight: 300;
}

a:hover {
  text-decoration: underline;
}

pre,
code {
  padding: .25em .5em;
  font-family: Menlo, Monaco, monospace;
  font-size: 85%;
  color: #bf616a;
  background-color: #f9f9f9;
  border-radius: 3px;
}

pre {
  margin-bottom: 1.5rem;
}

hr {
  border: 0;
  border-bottom: 1px solid #fff;
  border-top: 1px solid #e2e2e2;
  position: relative;
  margin: 2rem 0;
}

/* Helper Classes */
/*-----------------------------------------*/

.clearfix:before,
.clearfix:after {
  content: '';
  display: table;
  clear: both;
}

.heavy {
  font-weight: 500;
}

.heavy a {
  font-weight: 700;
}

.container {
  padding: 0 2%;
  margin: 0 auto;
  max-width: 768px;
}

/* Header */
/*-----------------------------------------*/

.site-header {
  margin-bottom: 4rem;
}

.masthead {
  border-bottom: 1px solid #e2e2e2;
  padding: 1.5rem 0;
  margin-bottom: 3rem;  
}

.masthead .logo {
  display: block;
  height: 45px;
  max-width: 50%;
  width: 268px;
}

.tagline { 
  font-style: italic;
  text-align: center;
}

/* Site Content */
/*-----------------------------------------*/

.profile-list {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

.profile-list li {
  -webkit-flex: 0 1 100%;
  -ms-flex: 0 1 100%;
  flex: 0 1 100%;
  max-width: 100%;
  margin-bottom: 1rem;
}

.profile-photo {
  border-radius: 75px;
  height: 150px;
  margin: 0 auto 1rem;
  overflow: hidden;
  position: relative;
  width: 150px;
}

.profile-photo img {
  min-height: 100%;
  object-fit: cover;
  position: absolute;
}

.profile-list p {
  text-align: center;
}

/* Footer */
/*-----------------------------------------*/

.site-footer {
   text-align: center;
}

.copyright {
   color: #808184;
}

/* Media Queries */
/*-----------------------------------------*/

@media screen and (min-width: 480px) {
  html {
    font-size: 18px;
  }

  .profile-list li {
    -webkit-flex: 0 1 50%;
    -ms-flex: 0 1 50%;
    flex: 0 1 50%;
    max-width: 50%;
  }
}

@media screen and (min-width: 720px) {
  html {
    font-size: 20px;
  }

  .profile-list li {
    -webkit-flex: 0 1 25%;
    -ms-flex: 0 1 25%;
    flex: 0 1 25%;
    max-width: 25%;
  }
}