密碼輸入區

1. 密碼輸入區邊界太小，當要顯示密碼內容時最左邊的文字看不清楚，修改 base 樣式的 core.css。

   [root@dywang moodle23]# diff -uN ../moodle/theme/base/style/core.css theme/base/style/core.css
   --- ../moodle/theme/base/style/core.css	2012-07-06 08:44:30.000000000 +0800
   +++ theme/base/style/core.css	2016-03-11 08:35:51.603170519 +0800
   @@ -1,7 +1,13 @@
    /**
     * Required to undo YUI resets that override input size
     */
   -input[type=text],input[type=password],textarea{width:auto;}
   +input[type=text],input[type=password],textarea{
   +	width: auto; 
   +	min-width: 4em; 
   +	resize: both;
   +	padding: 1px;
   +	padding-left: 3px;
   +}
    
    /* Fix for YUI overriding styles */
    strong{font-style:inherit;}em{font-weight:inherit;}