change to simpler style

less/core.less

@@ -632,26 +632,19 @@ table.classy {
 	}
 }
 
-body#post article table {
+article table {
 	border-spacing: 0;
 	border-collapse: collapse;
+	width: 100%;
 	th {
-		border-bottom: 2px solid #ccc;
+		border-width: 1px 1px 2px 1px;
-		text-align: center;
+		border-style: solid;
-	}
+		border-color: #ccc;
-	th + th {
-		border-left: 1px solid #ccc;
-	}
-	tr:nth-child(even) {
-		background-color: #f6f6f6;
 	}
-	td + td {
+	td {
-		border-left: 1px solid #ccc;
+		border-width: 0 1px 1px 1px;
-	}
+		border-style: solid;
-	tr + tr td {
+		border-color: #ccc;
-		border-top: 1px solid #ccc;
-	}
-	td, th {
 		padding: .25rem .5rem;
 	}
 }