html,
body {
  font-family: 'Roboto', 'Helvetica', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f5f5f5;
  color: #616161;
}

header {
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-flex-wrap: nowrap;
  -ms-flex-wrap: nowrap;
  flex-wrap: nowrap;
  -webkit-justify-content: flex-start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  box-sizing: border-box;
  -webkit-flex-shrink: 0;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  width: 100%;
  margin: 0;
  padding: 0;
  border: none;
  min-height: 64px;
  max-height: 1000px;
  z-index: 3;
  background-color: rgb(63,81,181);
  color: rgb(255,255,255);
  box-shadow: 0 2px 2px 0 rgba(0,0,0,.14),0 3px 1px -2pxrgba(0,0,0,.2),0 1px 5px 0 rgba(0,0,0,.12);
  transition-duration: .2s;
  transition-timing-function: cubic-bezier(.4,0,.2,1);
  transition-property: max-height,box-shadow;
}

header h1 {
  display: block;
  position: relative;
  font-family: "Roboto","Helvetica","Arial",sans-serif;
  font-size: 20px;
  line-height: 1;
  letter-spacing: .02em;
  font-weight: 400;
  box-sizing: border-box;
}

.content {
  display: block;
  margin: 0 auto;
}

 .header-row {
  padding-left: 40px;
}

 main > .tab-panel {
  padding: 8px;
  padding-top: 48px;
}

 .card {
  height: auto;
  display: flex;
  flex-direction: column;
  margin: 0;
  width: 100% !important;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  font-size: 16px;
  font-weight: 400;
  min-height: 200px;
  overflow: hidden;
  width: 330px;
  z-index: 1;
  position: relative;
  background: #fff;
  border-radius: 2px;
  box-sizing: border-box;
}

 .card > * {
  height: auto;
}

 .card .card-text {
  margin: 40px;
  flex-grow: 1;
  padding: 0;
  color: inherit;
  width: calc(100% - 80px);
}

 .card-text h4 {
  margin-top: 0;
  margin-bottom: 20px;
}

 .content section:not(:last-of-type) {
  position: relative;
  margin-bottom: 48px;
}

 section {
  max-width: 860px;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-flow: row wrap;
  -ms-flex-flow: row wrap;
  flex-flow: row wrap;
  margin: 0 auto;
  -webkit-align-items: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
  padding: 0;
  box-shadow: 0 2px 2px 0 rgba(0,0,0,.14),0 3px 1px -2px rgba(0,0,0,.2),0 1px 5px 0 rgba(0,0,0,.12);
}

 section > header {
  display: flex;
  align-items: center;
  justify-content: center;
}

 .card .card-text > h3:first-child {
  margin-bottom: 24px;
}

code {
  background: rgba(63,81,181,0.15);
  padding: 0 5px;
  border-radius: 2px;
}

ul {
  list-style-type: none;
}

ul, ol {
  margin: 15px 0;
}

li {
  font-size: 18px;
}

ul li:before {
  content: "star";
  font-family: "Material Icons";
  font-size: 18px;
  margin-right: 5px;
  vertical-align: middle;
  color: #3F51B5;
}

table {
  box-shadow: 0 2px 2px 0 rgba(0,0,0,.14),0 3px 1px -2px rgba(0,0,0,.2),0 1px 5px 0 rgba(0,0,0,.12);
  position: relative;
  border: 1px solid rgba(0,0,0,.12);
  border-collapse: collapse;
  white-space: nowrap;
  font-size: 13px;
  background-color: #fff;
  margin: 15px 0;
  width: 100%;
}

table thead {
  padding-bottom: 3px;
  text-align: center;
  background: rgba(63,81,181,0.15);
  font-weight: 800;
  color: rgba(0,0,0,.54);
}

table tfoot {
  background: rgba(245, 245, 245, 0.5);
}

tbody tr {
 position: relative;
 height: 48px;
 transition-duration: .28s;
 transition-timing-function: cubic-bezier(.4,0,.2,1);
  transition-property: background-color;
}

tbody tr:hover {
  background-color: #eee;
}

td {
  vertical-align: middle;
  position: relative;
  height: 48px;
  border: 1px solid rgba(0,0,0,.12);
  padding: 12px 18px;
  box-sizing: border-box;
}

.ex {
  padding-bottom: 5px;
  border-bottom: 1px solid #eee;
  margin-bottom: 25px;
}

header {
  padding:  10px;
}

section {
  padding: 1em;
  display: block;
  margin:  2em auto;
  background: white;
}

section img {
  max-width: 100%;
}

blockquote {
  line-height: 1;
}

blockquote > p {
  display: inline;
  font-size: 24px;
}

blockquote::before {
  content: "«";
  position: relative;
  font-size: 45px;
  color: rgb(0, 172, 242);
  font-style: normal;
  margin-left: -10px;
  margin-top: -30px;
}

blockquote::after {
  content: "»";
  position: relative;
  left: 0.5em;
  top: 0.3em;
  font-size: 45px;
  color: rgb(0, 172, 242);
  font-style: normal;
}