add white version of logo + add thrgraph

app/assets/v2/css/hackathons/explorer.css

@@ -76,18 +76,10 @@
 
 #beyondblockchain_2019 img.Alethio,
 #beyondblockchain_2019 img.Arweave {
-  height: 4rem;
+  height: 3.5rem;
   width: auto;
 }
 
-#beyondblockchain_2019 img.Alethio ,
-#beyondblockchain_2019 img.Matic,
-#beyondblockchain_2019 img.Arweave {
-  padding: 5px;
-  background-color: rgba(255, 255, 255, 0.85);
-  border-radius: 1px;
-}
-
 #beyondblockchain_2019 .img-holder {
   width: auto;
   height: auto;
@@ -98,13 +90,28 @@
   max-height: 6rem;
 }
 
-#beyondblockchain_2019 .sponsors-silver img {
-  max-height: 3rem;
+#beyondblockchain_2019 .sponsors-gold {
+  margin-bottom: 1rem;
 }
 
-#beyondblockchain_2019 img.Pegasys,
-#beyondblockchain_2019 img.Portis {
-  max-height: 3rem;
+#beyondblockchain_2019 img.Pegasys {
+  height: 4rem;
   position: relative;
   top: 1rem;
+}
+
+#beyondblockchain_2019 img.Portis {
+  height: 3rem;
+  position: relative;
+  top: 1.5rem;
+}
+
+#beyondblockchain_2019 img.Alethio,
+#beyondblockchain_2019 img.TheGraph {
+  height: 4.5rem;
+}
+
+#beyondblockchain_2019 img.TheGraph {
+  position: relative;
+  top: -.4rem;
 }

app/assets/v2/css/hackathons/static.css

@@ -52,6 +52,7 @@ h4 {
 
 .hackathon .banner-logo {
   max-height: 18rem;
+  width: auto !important;
 }
 
 .hackathon .sponsors_gold img {
@@ -147,8 +148,13 @@ h4 {
   height: 100%;
 }
 
+.beyond_blocks .sponsors_silver img {
+  height: 3.5rem;
+}
+
 .bb-banner-bg {
   background-color: #121315;
+  text-align: center;
 }
 
 .bb-green-bg {