feat: add authors

src/assets/css/index.scss

@@ -104,6 +104,7 @@ h1 {
   font-style: normal;
   font-size: 3rem;
   font-weight: 700;
+  margin: 3rem 0 2rem;
 }
 
 h2 {
@@ -136,7 +137,11 @@ main {
   padding: 8rem 1rem 4rem 1rem;
 }
 main :first-child {
-  margin: 0;
+  margin-top: 0;
+}
+
+.main-title {
+  margin-bottom: 0;
 }
 
 .sub-title {
@@ -229,7 +234,7 @@ figure figcaption {
   margin-bottom: 5rem;
 }
 .postlist-header h2 {
-  margin-bottom: 0;
+  margin-bottom: .5rem;
 }
 .postlist-link {
   flex-basis: calc(100% - 1.5rem);
@@ -261,14 +266,19 @@ figure figcaption {
   padding: 0;
   margin: 0;
 }
-.post-list time,
-.post-metadata time {
+
+h1 + .post-metadata {
+  margin: 0 0 4rem;
+}
+.post-list time {
   margin-right: 1em;
   font-size: 0.8125rem; /* 13px /16 */
   color: var(--text-color-sub);
 }
-.post-metadata li:first-child {
+.post-metadata .post-metadata__header {
   flex-grow: 1;
+  font-size: 0.8125rem; /* 13px /16 */
+  color: var(--text-color-sub);
 }
 .post-nav ul {
   display: flex;