diff --git a/assets/scss/_content.scss b/assets/scss/_content.scss
new file mode 100644
index 0000000..b285cc2
--- /dev/null
+++ b/assets/scss/_content.scss
@@ -0,0 +1,249 @@
+.content {
+  flex: 1;
+  display: flex;
+  margin-top: 1.6rem;
+  margin-bottom: 3.2rem;
+
+  @media only screen and (max-width: 768px) {
+    margin-top: 1rem;
+    margin-bottom: 1.6rem;
+  }
+
+  header {
+    margin-top: 6.4rem;
+    margin-bottom: 3.2rem;
+
+    h1 {
+      font-size: 4.2rem;
+      line-height: 4.6rem;
+      margin: 0;
+
+      @media only screen and (max-width: 768px) {
+        font-size: 4rem;
+        line-height: 4.4rem;
+      }
+    }
+  }
+
+  article {
+    a:where(.external-link):not(:has(img)):after {
+      @extend %fa-icon;
+      @extend .fa-solid;
+      content: fa-content($fa-var-external-link);
+      padding-left: 0.5em;
+      font-size: 0.75em;
+    }
+
+    details {
+      summary {
+        cursor: pointer;
+      }
+    }
+
+    footer {
+      margin-top: 4rem;
+
+      .see-also {
+        margin: 3.2rem 0;
+
+        h3 {
+          margin: 3.2rem 0;
+        }
+      }
+    }
+
+    p {
+      text-align: left;
+    }
+  }
+
+  .post {
+    .post-title {
+      margin-bottom: 0.75em;
+    }
+
+    .post-meta {
+      i {
+        text-align: center;
+        width: 1.6rem;
+        margin-left: 0;
+        margin-right: 0.5rem;
+      }
+
+      .date {
+        .posted-on {
+          margin-left: 0;
+          margin-right: 1.5rem;
+        }
+      }
+
+      .tags {
+        .tag {
+          display: inline-block;
+          padding: 0.3rem 0.6rem;
+          background-color: $alt-bg-color;
+          border-radius: 0.6rem;
+          line-height: 1.5em;
+
+          a {
+            color: $fg-color;
+          }
+
+          a:active {
+            color: $fg-color;
+          }
+        }
+      }
+    }
+  }
+
+  figure {
+    margin: 0;
+    padding: 0;
+  }
+
+  figcaption p {
+    text-align: center;
+    font-style: italic;
+    font-size: 1.6rem;
+    margin: 0;
+  }
+}
+
+.avatar img {
+  width: 20rem;
+  height: auto;
+  border-radius: 50%;
+
+  @media only screen and (max-width: 768px) {
+    width: 17rem;
+  }
+}
+
+.list {
+  ul {
+    margin: 3.2rem 0 3.2rem 0;
+    list-style: none;
+    padding: 0;
+
+    li {
+      font-size: 1.8rem;
+
+      @media only screen and (max-width: 768px) {
+        margin: 1.6rem 0 1.6rem 0;
+      }
+
+      .date {
+        display: inline-block;
+        flex: 1;
+        width: 20rem;
+        text-align: right;
+        margin-right: 3rem;
+
+        @media only screen and (max-width: 768px) {
+          display: block;
+          text-align: left;
+        }
+      }
+
+      .title {
+        font-size: 1.8rem;
+        flex: 2;
+        color: $fg-color;
+        font-family: $font-family;
+        font-weight: 700;
+
+        &:hover,
+        &:focus {
+          color: $link-color;
+        }
+      }
+    }
+  }
+
+  ul:not(.pagination) {
+    li {
+      @media only screen and (min-width: 768.1px) {
+        display: flex;
+      }
+    }
+  }
+}
+
+.centered {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+
+  .about {
+    text-align: center;
+
+    h1 {
+      margin-top: 2rem;
+      margin-bottom: 0.5rem;
+    }
+
+    h2 {
+      margin-top: 1rem;
+      margin-bottom: 0.5rem;
+      font-size: 2.4rem;
+
+      @media only screen and (max-width: 768px) {
+        font-size: 2rem;
+      }
+    }
+
+    ul {
+      list-style: none;
+      margin: 3rem 0 1rem 0;
+      padding: 0;
+      cursor: pointer;
+
+      li {
+        display: inline-block;
+        position: relative;
+
+        a {
+          color: $fg-color;
+          text-transform: uppercase;
+          margin-left: 1rem;
+          margin-right: 1rem;
+          font-size: 1.6rem;
+
+          &:hover,
+          &:focus {
+            color: $link-color;
+          }
+
+          @media only screen and (max-width: 768px) {
+            font-size: 1.5rem;
+          }
+        }
+      }
+    }
+  }
+
+  .error {
+    text-align: center;
+
+    h1 {
+      margin-top: 2rem;
+      margin-bottom: 0.5rem;
+      font-size: 4.6rem;
+
+      @media only screen and (max-width: 768px) {
+        font-size: 3.2rem;
+      }
+    }
+
+    h2 {
+      margin-top: 2rem;
+      margin-bottom: 3.2rem;
+      font-size: 3.2rem;
+
+      @media only screen and (max-width: 768px) {
+        font-size: 2.8rem;
+      }
+    }
+  }
+}