FIX unify the units css. (#499)

* FIX unify the units css.
* Fix units css font-size.

frontend/src/app/components/blockchain-blocks/blockchain-blocks.component.html

@@ -12,7 +12,7 @@
         <div class="fee-span">
           {{ block.feeRange[1] | number:'1.0-0' }} - {{ block.feeRange[block.feeRange.length - 1] | number:'1.0-0' }} <ng-container i18n="shared.sat-vbyte|sat/vB">sat/vB</ng-container>
         </div>
-        <div class="block-size">&lrm;{{ block.size | bytes: 2 }}</div>
+        <div class="block-size" [innerHTML]="block.size | bytes: 2">&lrm;</div>
         <div class="transaction-count">
           <ng-container *ngTemplateOutlet="block.tx_count === 1 ? transactionsSingular : transactionsPlural; context: {$implicit: block.tx_count | number}"></ng-container>
           <ng-template #transactionsSingular let-i i18n="shared.transaction-count.singular">{{ i }} transaction</ng-template>