Update sponsor ads and carbon ad styling

styles/carbon.css

@@ -2,10 +2,16 @@
   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu,
   Cantarell, "Helvetica Neue", Helvetica, Arial, sans-serif;
   position: fixed;
-  bottom: 15px;
+  bottom: 150px;
   right: 20px;
 }
 
+@media (max-width: 700px) {
+  #carbonads {
+    display: none !important;
+  }
+}
+
 #carbonads {
   display: flex;
   max-width: 330px;

styles/sponsor.css

@@ -0,0 +1,66 @@
+#sponsorads {
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu,
+  Cantarell, "Helvetica Neue", Helvetica, Arial, sans-serif;
+  position: fixed;
+  bottom: 15px;
+  right: 20px;
+}
+
+#sponsorads {
+  display: flex;
+  max-width: 330px;
+  background-color: hsl(0, 0%, 98%);
+  box-shadow: 0 1px 4px 1px hsla(0, 0%, 0%, .1);
+}
+
+#sponsorads:hover {
+  z-index: 999;
+}
+
+#sponsorads a {
+  color: inherit;
+  text-decoration: none;
+}
+
+#sponsorads a:hover {
+  color: inherit;
+}
+
+#sponsorads span {
+  position: relative;
+  display: block;
+  overflow: hidden;
+}
+
+#sponsorads .sponsor-wrap {
+  display: flex;
+}
+
+.sponsor-img {
+  display: block;
+  margin: 0;
+  line-height: 1;
+}
+
+.sponsor-img img {
+  display: block;
+}
+
+.sponsor-text {
+  font-size: 13px;
+  padding: 10px;
+  line-height: 1.5;
+  text-align: left;
+}
+
+.sponsor-poweredby {
+  display: block;
+  padding: 8px 10px;
+  background: repeating-linear-gradient(-45deg, transparent, transparent 5px, hsla(0, 0%, 0%, .025) 5px, hsla(0, 0%, 0%, .025) 10px) hsla(203, 11%, 95%, .4);
+  text-align: center;
+  text-transform: uppercase;
+  letter-spacing: .5px;
+  font-weight: 600;
+  font-size: 9px;
+  line-height: 1;
+}