Adjust dark mode toggle position for mobile view (#7)

* Adjust dark mode toggle position for mobile view

* Fix toggle into absolute position

Author: dotcomaki

_includes/head_custom.html

@@ -13,6 +13,7 @@
   display: flex;
   align-items: center;
   justify-content: center;
+  line-height: 0;
   background-color: rgba(128, 128, 128, 0.15);
   color: inherit;
   transition: background-color 0.2s, transform 0.2s;
@@ -29,6 +30,13 @@
 .theme-toggle:active {
   transform: scale(0.95);
 }
+@media (max-width: 50rem) {
+  .theme-toggle {
+    position: absolute;
+    right: 4rem;
+    top: 0.67rem;
+  }
+}
 </style>
 <script>
 (function() {