web/public/css/layout.css

body {
  font-family: "Arial", Gadget, sans-serif;
  counter-reset: heading;
  margin: 0;
}

footer {
  font-size: 0.8em;
}

.main {
  margin: auto;
  max-width: 42em;
}

.main .header-bar {
  padding: 1em 0.2em 0.3em 0.2em;
}

img {
  max-width: 100%;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

figure {
  margin: 0em;
}

figcaption {
  text-align: center;
  font-size: 0.9em;
  font-weight: bold;
}

iframe {
  max-width: 42em;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

li {
  margin-top: 0.5em;
}

p {
  line-height: 1.5em;
}

h1 { font-size: 2em;
     font-weight: normal;
}
h2 { font-size: 1.5em;
     font-weight: normal;
}
h3 { font-size: 1.17em;
     font-weight: normal;
}
h4 { font-size: 1.12em;
     font-weight: normal;
}
h5 { font-size: .90em;
     font-weight: bold;
}
h6 { font-size: .75em;
     font-weight: normal;
}

a:active, a:focus {
  outline-style: solid;
  outline-width: thin;
}

header {
  justify-content: space-around;
  flex-direction: column;
}

/* navigation  */
nav {
  text-align: center;
  display: -webkit-flex;
  -webkit-justify-content: space-between;
  -webkit-flex-flow: column;
  display: flex;
  justify-content: space-between;
  flex-flow: column;
}

.nav-item {
  font-size: 1.2em;
  text-decoration: none;
  font-weight: bold;
}

.nav-item-title {
  padding: 0.2em;
}

.nav-item-title:hover {
  text-decoration: underline;
}

pre {
  margin: 1em 0em 1em;
  padding: 0.5em 0.5em 0.5em;
}

code {
  white-space: pre-wrap;       /* Since CSS 2.1 */
  white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
  white-space: -pre-wrap;      /* Opera 4-6 */
  white-space: -o-pre-wrap;    /* Opera 7 */
  word-wrap: break-word;       /* Internet Explorer 5.5+ */
  line-height: 1.5em;
}

blockquote {
  padding: 0.5em;
  padding-left: 1em;
}

th, td {
  padding: 0.5em;
}


/* site title  */
.siteTitle {
  font-size: 2.5em;
  margin-bottom: 0.2em;
  font-family: "Lucida Console", Monaco, monospace;
}

.siteTitle a {
  text-decoration: none;
}

.articleheader_data {
  display: -webkit-flex;
  -webkit-justify-content: space-between;
  -webkit-flex-flow: row wrap;
  display: flex;
  justify-content: space-between;
  flex-flow: row wrap;
}

.post .title {
  text-align: center;
}

.post .content{
  padding-left : 1em;
  padding-right : 1em;
}

.post .date {
  text-align: center;
}

.post {
  margin-top : 1.5em;
  margin-bottom : 1.5em;
}

.post .content h1{
  margin: 1em 0em;
}

.post .content h2{
  margin: 1em 0em;
}

.post .content h3{
  margin: 1em 0em;
  text-align: center;
}

.post .content h4{
  margin: 1em 0em;
  text-align: center;
}

.post .content h5{
  margin: 1em 0em;
}

.post .content p{
}

.post-footer-data {
/*  display: -webkit-flex;
  -webkit-flex-direction: column;
  -webkit-align-items: flex-start;
  display: flex;
  flex-direction: column;
  align-items: flex-start; */
  font-size: 0.7em;
  padding: 1em;
}

.post-footer hr {
  width: 100%;
}

.post-footer-data .date {
  font-weight: bold;
  text-align: right;
  padding-top: 0.2em;
  padding-bottom: 0.2em;
}

.post-footer-data .tag {
  font-weight: bold;
}

.post-footer-data .categories {
  padding-top: 0.5em;
}

.post-footer-data .category {
  font-weight: bold;
}

.post-footer-data .series {
  padding-top: 0.5em;
  padding-bottom: 0.5em;
}

.content-item {
  margin-top: 0.5em;
  padding: 0.1em 0.3em 0.5em 0.3em
}

.content-item .meta{
  margin-top: 0.5em;
  padding-top: 0.5em;
  display: -webkit-flex;
  display:flex;
  flex-wrap: wrap;
  flex-direction: column;
  font-size: 0.7em;
}

.content-item .tags {
  margin-bottom: 0.3em;
  font-weight: bold;
}

.content-item .categories {
  margin-top: 0.3em;
  margin-bottom: 0.3em;
}

.content-item .category {
  font-weight: bold;
  display: inline-block;
}

.content-item .series {
  margin-top: 0.3em;
  margin-bottom: 0.3em;
}

.content-item .series-name {
  font-weight: bold;
  display: inline-block;
}

.content-item .date {
  font-size: 0.7em;
  font-weight: bold;
  white-space: nowrap;
  text-align: right;
}

.post-footer-menu {
  display: -webkit-flex;
  -webkit-justify-content: space-between;
  display: flex;
  justify-content: space-between;

  font-size: 0.8em;
  margin: 0.5em 4em;
}

.post-prev a {
  text-decoration: none;
  font-weight: bold;
}

.post-next a {
  text-decoration: none;
  font-weight: bold;
}

.post-home a {
  text-decoration: none;
  font-weight: bold;
}

.copyright {
  font-size: smaller;
  text-align: center;
  margin-top: 1em;
}

.poweredby {
  font-size: smaller;
  text-align: center;
}

.poweredby a {
  text-decoration: none;
  text-decoration: underline;
}

.err-404 {
  margin: 3em;
  text-align: center;
}

.social-links-header {
  display: -webkit-flex;
  -webkit-justify-content: center;
  -webkit-flex-flow: row wrap;
  display: flex;
  justify-content: center;
  flex-flow: row wrap;
}

.social-links-header a {
  text-decoration: none;
}

.social-links-footer {
  text-align: center;
  display: -webkit-flex;
  -webkit-justify-content: center;
  -webkit-flex-flow: row wrap;
  display: flex;
  justify-content: center;
  flex-flow: row wrap;

  margin-top: 0.5em;
}

.social-links-footer a {
  text-decoration: none;
}

.social-link {
  margin: 0.2em;
  font-size: 1.2em;
}

.social-link:hover {
  text-decoration: underline;
}

.content-list {
  font-size: 1.2em;
}

.content-item a {
  text-decoration: none;
}

.content-list-date {
  font-size: 1.2em;
  margin-top: 0.5em;
  text-align: center;
}

.post-list {
  display: -webkit-flex;
  -webkit-justify-content: center;
  display: flex;
  justify-content: space-between;
  margin-top: 0.5em;
  margin-bottom: 0.5em;
}

.post-list .title {
  margin: 0em;
}

.post-list .date {
  margin: 0em;
  font-size: 0.9em;
}

.post-footer-data .category {
  font-weight: bold;
  display: inline-block;
}

.post-footer-data .category a {
  text-decoration: none;
}

.post-footer-data .series-name {
  display: inline-block;
}

.post-footer-data .series-name a {
  font-weight: bold;
  text-decoration: none;
}

.tag {
  display: inline-block;
}

.tag a {
  text-decoration: none;
}

/* summary list on main page  */

.post-preview {
  text-decoration: none;
  padding: 0.5em 0.5em 1em 0.5em;
  margin-top: 1.5em;
  margin-bottom: 1.5em;
}

.post-preview .title {
  margin-top: 0.3em;
  margin-bottom: 0.3em;
}

.post-preview a {
  text-decoration: none;
}

.post-preview .summary {
  padding-left: 0.5em;
  padding-right: 0.5em;
  padding-top: 0.5em;
  line-height: 1.5em;
}

.post-preview .summary p {
  margin-block-start: 0.5em;
  margin-block-end: 0.5em;
  margin-inline-start: 0.em;
  margin-inline-end: 0em;
  line-height: 1.5em;
}

.post-preview .meta {
  font-size: 0.8em;
  font-weight: bold;
  padding: 0.3em 1em 0.5em 1em;
  text-align: left;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.post-preview .date {
  font-weight: bold;
  text-align: left;
}

.post-preview .tags {
  font-weight: bold;
  text-align: left;
}

.post-preview .categories {
  font-weight: bold;
  text-align: left;
  display: inline-block;
}

.rmore {
  margin-top: 0.5em;
  white-space:nowrap;
  text-align: right;
}

.rmore a {
  border-radius: 0.2em;
  padding: 0.3em;
}

/* terms list */
.terms {
  border-radius: 0.2em;
  width: 50%;
  margin: auto;
  margin-bottom: 1em;
}

.terms a {
  font-size: 1.2em;
  text-decoration: none;
}

.terms .term {
  padding: 0.5em;
}

.page-nav {
  display: -webkit-flex;
  -webkit-justify-content: center;
  -webkit-flex-flow: row wrap;
  display: flex;
  justify-content: center;
  flex-flow: row wrap;

  padding: 1em;
  font-weight: bold;
}

.page-nav a {
  text-decoration: none;
}

.page-num {
  text-align: center;
  margin-left: 1em;
  margin-right: 1em;
}

.content-list-title {
  text-align: center;
  margin-bottom: 0em;
}

.content-list-title a {
  text-decoration: none;
}

.term-list-title {
  text-align: center;
}

.term-list-title a {
  text-decoration: none;
}

.sitemap {
    margin: auto;
    width: 50%;
    font-size: 1.4em;
}

.__h_instagram .card-header {
  font-weight: bold;
  padding: 0.5em;
  text-align: center;
}

.__h_instagram .card-body {
  padding: 0.5em;
}

@media only screen and (min-width: 400px) {

  nav {
    flex-flow: row wrap;
  }

  .siteTitle {
    flex-grow: 2;
    text-align: left;
    flex-basis: 0;
  }

  .nav-item-title {
    font-size: 0.85em;
    font-weight: bold;
  }

  .social-links-header {
    font-size: 0.75em;
    -webkit-justify-content: left;
    -webkit-flex-flow: row wrap;
    justify-content: left;
    flex-flow: row wrap;
  }

  .social-link {
    font-weight: bold;
  }

  .social-links-footer {
    text-align: center;
    -webkit-justify-content: center;
    -webkit-flex-flow: row wrap;
    justify-content: center;
    flex-flow: row wrap;

    font-size: 0.75em;
  }
}