css样式：
插播一下 让checkbox字体和框在同一条水平线上的样式.checkbox{ vertical-align: middle; margin-top: 0; line-height: 24px; margin-bottom: 2px;}/*div水平垂直居中*/ .topdiv { text-align:center; } .insidediv1 { position:absolute; left:50%; top:50%; margin-left:width/2; margin-top:height/2; } .insidediv2 { background-color:Yellow; width:300px; height:180px; margin-left:-150px; /*对应数值是width的二分之一*/ margin-top:-90px; /*对应数值是height的二分之一*/ }aspx或html页面：
<body> <form id="form1" runat="server"> <div class="topdiv"> <div class="insidediv1"> <div class="insidediv2"> <table cellpadding="0" cellspacing="0" class="table"> <tr> <td> 登 录 名： </td> <td align="left"> <asp:TextBox ID="txtLoginName" runat="server" Width="150px" Height="26px"></asp:TextBox> </td> </tr> <tr> <td> 密 码： </td> <td align="left"> <asp:TextBox ID="txtPassword" runat="server" TextMode="Password" Width="150px" Height="26px"></asp:TextBox> </td> </tr> <tr> <td> <asp:Button ID="btnLogin" runat="server" Text="登录" OnClick="btnLogin_Click" /> </td> <td> <asp:Button ID="btnReset" runat="server" Text="重置" OnClick="btnReset_Click" /> </td> </tr> </table> </div> </div> </div> </form> </body>
转载于:https://www.cnblogs.com/zhizihuakai/archive/2012/12/10/2811035.html
