style.css

/*
* Copyright 2018 Google LLC
* 
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* 
*     https://www.apache.org/licenses/LICENSE-2.0
* 
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
@import url('https://themes.googleusercontent.com/fonts/css?kit=Ry7ZpkCWHRNK4QK2VqZc1A');

body {
  font-family: 'Roboto', sans-serif;
  height: 100%;
  margin: 0;
  padding: 0;
  position: relative;
}

table {
  border-spacing: 0;
  border-collapse: collapse;
  width: 100%;
}

.top table {
  height: 80px;
}

.top table tr td {
  padding: 0 25px 0 0;
  position: relative;
}

.top-logo {
  height: 90px;
  position: fixed;
  top: -8px;
}

.top-8m-text {
  color: white;
  font-size: 35px;
  height: 42px;
  padding-left: 25px;
  position: fixed;
  top: 18px;
  vertical-align: center;
}

.youtube1-logo {
  height: 90px;
  margin: -10px 0 0 -50px;
  overflow: hidden;
}

a img {
  border: 0;
}

.top {
  background-color: #4285f4; /* blue */
  box-shadow: 2px 0 5px #2c3539;
  color: white;
  font-family: 'Google Sans', sans-serif;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 99999;
}

.top tr .top-left {
  position: relative
  text-align: left;
  vertical-align: center;
}

.top tr .top-right {
  text-align: right;
  vertical-align: center;
}

.top a {
  color: white;
  font-size: 24px;
  margin: 10px;
  padding: 10px 5px;
  text-decoration: none;
}

.top a:visited {
  color: white;
}

.top a:hover {
  background-color: #396bbc;  /* dark blue */
}

.contents {
  font-size: 18px;
  height: auto !important;
  margin-bottom: 0;
  margin-top: 0;
  min-height: calc(100vh - 95px);
  padding-bottom: 0;
  position: relative;
  top: 80px;
  width: 100%;
}

h1 {
  color: #4285f4;  /* blue */
  font-family: 'Google Sans', sans-serif;
  font-size: 35px;
  font-weight: bold;
  margin: 0 0 0 0px;
  padding: 10px 0 2px;
}

h2 {
  color: #4285f4;  /* blue */
  font-family: 'Google Sans', sans-serif;
  font-size: 35px;
  font-weight: normal;
  margin: 0 0 0 25px;
  padding: 10px 0 2px;
}

h3 {
  color: #4285f4;  /* blue */
  font-family: 'Google Sans', sans-serif;
  font-size: 28px;
  font-weight: normal;
  margin: 0 0 0 25px;
  padding: 10px 0 2px;
}

.ref {
  color: #3367d6;
  font-weight: bold;
  text-decoration: none;
}

.alt-page,
.page {
  margin: 0;
  padding-bottom: 45px;
  padding-top: 45px;
  width: 100%;
}

.alt-page:nth-child(even),
.page:nth-child(odd) {
  background-color: #e0e0e0;
  background: -moz-linear-gradient(left, rgba(237, 237, 237, 1) 0%, rgba(227, 227, 227, 1) 47%, rgba(219, 219, 219, 1) 100%);
  background: -ms-linear-gradient(left, rgba(237, 237, 237, 1) 0%, rgba(227, 227, 227, 1) 47%, rgba(219, 219, 219, 1) 100%);
  background: -o-linear-gradient(left, rgba(237, 237, 237, 1) 0%, rgba(227, 227, 227, 1) 47%, rgba(219, 219, 219, 1) 100%);
  background: -webkit-gradient(left top, right top, color-stop(0%, rgba(237, 237, 237, 1)), color-stop(47%, rgba(227, 227, 227, 1)), color-stop(100%, rgba(219, 219, 219, 1)));
  background: -webkit-linear-gradient(left, rgba(237, 237, 237, 1) 0%, rgba(227, 227, 227, 1) 47%, rgba(219, 219, 219, 1) 100%);
  background: linear-gradient(to right, rgba(237, 237, 237, 1) 0%, rgba(227, 227, 227, 1) 47%, rgba(219, 219, 219, 1) 100%);
  background: rgba(237, 237, 237, 1);
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#ededed', endColorstr='#dbdbdb', GradientType=1 );
  margin: 0;
  padding-bottom: 45px;
  padding-top: 45px;
  width: 100%;
}

.alt-page:nth-child(odd),
.page:nth-child(even) {
  background-color: white;
}

.pc {
  left: 50%;
  margin: 0;
  padding: 5px 0 12px 0;
  position: relative;
  transform: translateX(-50%);
  width: 1100px;
}

.author {
  border: solid 1px #2939c5;
  float: left;
  height: 80px;
  margin: 10px;
  padding: 5px;
  position: relative;
  vertical-align: middle;
  width: 300px;
}

.author .img {
  float: left;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
  width: 80px;
}

.author .img img {
  border-width: 0;
  display: block;
  margin: auto;
  vertical-align: middle;
  height: 80px;
}

.author .name {
  font-size: 20px;
  margin-left: 90px;
  position: relative;
  top: 50%;
  transform: translateY(-50%);
}

.big {
  font-size: 35px;
}

.top-squares {
  border-spacing: 10px;
  border-collapse: separate;
  width: 100%;
}

.top-squares tr td {
  background-color: #4285f4; /* blue */
  color: white;
  cursor: pointer;
  font-size: 20px;
  height: 105px;
  text-align: center;
  width: 200px;
}

.top-squares tr td:hover {
  background-color: #396bbc;  /* dark blue */
}

.centered {
  text-align: center;
  text-align: -moz-center;
  text-align: -webkit-center;
}

.button {
  background-color: #4285f4; /* blue */
  border: none;
  color: white;
  cursor: pointer;
  display: inline-block;
  font-family: 'Google Sans', sans-serif;
  font-size: 16px;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
}

.button:hover {
  background-color: #396bbc;  /* dark blue */
}

#red-triangle-up {
  border-bottom: 35px solid #4285f4;  /* blue */
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  display: none;
  height: 0;
  position: relative;
  width: 0;
}

#white-triangle-up {
  border-bottom: 35px solid white;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  display: none;
  height: 0;
  position: absolute;
  width: 0;
}

#squares-bubble {
  background-color: white;
  /*border: solid #e62d28 1px;*/  /* blue */
  border: solid #4285f4 1px;  /* blue */
  border-radius: 25px;
  display: none;
  font-size: 18px;
  padding: 20px;
  text-align: left;
  width: 1000px;
}

.inline-code {
  background-color: #f0f0f0;  /* light gray */
  border: 1px solid #c8c8c8;  /* gray */
  font-family: "Roboto Mono", Monospace;
  padding: 2px 5px;
}

.code {
  background-color: #f0f0f0;  /* light gray */
  border: 1px solid #c8c8c8;  /* gray */
  font-family: "Roboto Mono", Monospace;
  margin: 5px 10px 10px;
  padding: 5px 15px;
}

.tos {
  background-color: #eceff1;  /* light blue */
  height: 40px;
  padding: 15px 25px 0;
  position: relative;
  top: 40px;
}

.tos table tr td img {
  opacity: .54;
}

.tos table tr td a {
  color: #4285f4;  /* dark blue */
  font-size: 12px;
  font-weight: 300;
  padding-left: 10px;
  text-decoration: none;
}

.tos table tr td a:visited {
  color: #4285f4;  /* dark blue */
}

.tos tr .tos-right {
  text-align: right;
}

.tag-cloud-small {
  height: 500px;
  overflow-x: hidden;
  padding: 0;
  position: relative;
}

.tag-cloud-full {
  height: 100%;
  overflow-x: hidden;
  padding: 0;
  position: relative;
}

.organizers tr td {
  text-align: center;
}

.organizers  tr td img {
  height: 120px;
}

.chart-photo {
  padding-right: 160px;
}

.two-columns tr td {
  width: 50%;
}

.four-columns tr td {
  width: 25%;
}

.carousel-images {
}