fix some UI problems

src/Flows.css

@@ -145,6 +145,10 @@
   font-size: 0.8em;
 }
 
+.box-header {
+  display: flow-root;
+}
+
 .flow-item-row p.img {
   text-align: center;
   margin-top: 0.5em;
@@ -404,6 +408,7 @@
 
 .box-content-wrapper .box-content-vote {
   flex: 0 0;
+  margin-left: 6px;
 }
 
 .vote-num {

src/Flows.js

@@ -370,8 +370,8 @@ class FlowItem extends PureComponent {
                         ? 'vote-icon-active'
                         : 'vote-icon-inactive'
                     }
-                    width="28"
+                    width="24"
-                    height="28"
+                    height="24"
                     viewBox="0 0 36 36"
                   >
                     <path d="M2 25h32L18 9 2 25Z" />
@@ -392,8 +392,8 @@ class FlowItem extends PureComponent {
                         ? 'vote-icon-active'
                         : 'vote-icon-inactive'
                     }
-                    width="28"
+                    width="24"
-                    height="28"
+                    height="24"
                     viewBox="0 0 36 36"
                   >
                     <path d="M2 11h32L18 27 2 11Z"></path>