From fcbf14aeb2e39f00a7b6f19cd683bfda282742c2 Mon Sep 17 00:00:00 2001
From: meihangbo <meihangbo@vip.qq.com>
Date: Fri, 3 Mar 2017 08:56:12 +0800
Subject: [PATCH] Update layer.js
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未设置btnAlign时,包裹按钮的div.layui-layer-btn  出现一多余class layui-layer-btn-
---
 src/layer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/layer.js b/src/layer.js
index e7003ee..c7a48ef 100644
--- a/src/layer.js
+++ b/src/layer.js
@@ -233,7 +233,7 @@ Class.pt.vessel = function(conType, callback){
         for(var i = 0, len = config.btn.length; i < len; i++){
           button += '<a class="'+ doms[6] +''+ i +'">'+ config.btn[i] +'</a>'
         }
-        return '<div class="'+ doms[6] +' layui-layer-btn-'+ (config.btnAlign||'') +'">'+ button +'</div>'
+        return '<div class="'+ doms[6] + ((config.btnAlign&&config.btnAlign.length>0)? (' layui-layer-btn-' + config.btnAlign) : ' ') +'">'+ button +'</div>'
       }() : '')
       + (config.resize ? '<span class="layui-layer-resize"></span>' : '')
     + '</div>'