Beautified the tags in posts.

_layouts/post.html

@@ -69,7 +69,7 @@ layout: default
           <a href="{{ site.baseurl }}/tags/{{ tag | replace: ' ', '-' | downcase }}/"
             class="post-tag no-text-decoration" >
             {{- tag -}}
-          </a>{%- if forloop.last != true -%}&ensp;{%- endif -%}
+          </a>
           {% endfor %}
           </div>
         {% endif %}

assets/css/main.scss

@@ -713,9 +713,12 @@ table tbody td {
 }
 
 .post-tag {
+  display: inline-block;
+  min-width: 2rem;
+  text-align: center;
   background: rgba(0, 0, 0, 0.075);
   border-radius: .34rem;
-  padding: .25rem .4rem;
+  padding: 0 .4rem;
   margin: 0 .1rem;
   color: #818182;
   line-height: 1.6rem;