Override form-control class to increase its border radius

static/css/elegant.less

@@ -29,6 +29,11 @@ h1, h2, h3, h4, h5, h6 {
     }
 }
 
+.form-control {
+    &:extend(.form-control);
+    border-radius: 15px;
+}
+
 .page-header {
     &:extend(.page-header);
     color: @page-header-color;