HTML table 边框双线变单线

效果对比图

普通table 标签

        

          
Month
          
Savings
        
        

          
January
          
$100
        
      

加了css限制的

    

        

            
1
            
1
            
1
            
1
            
1
        
        

            
1
            
1
            
1
            
1
            
1
        
    

table{
    border-collapse:collapse;
    border-spacing:0;
    border-left:1px solid #888;
    border-top:1px solid #888;
}  

th,td{
    border-right:1px solid #888;
    border-bottom:1px solid #888;
    padding:5px 15px;
}  

th{
    font-weight:bold;
}