如何在网页中居中ImageButton？Visual Studio中PayPal按钮居中失败求助

Got it, let's get that PayPal ImageButton centered on your page—your current table setup just needs a little CSS tweak to behave the way you want. Here are a couple of reliable approaches:

Method 1: Center the Existing Table #

Since you're already using a table to wrap the button, you can add an inline style to make the table itself center in its parent container. Block-level elements like tables will center when you set left/right margins to auto:

<table style="margin: 0 auto;">
  <tr>
    <td>
      <asp:ImageButton ID="CheckoutImageBtn" runat="server" 
        ImageUrl="https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif" 
        Width="145" 
        AlternateText="Check out with PayPal" 
        OnClick="CheckoutBtn_Click" 
        BackColor="Transparent" 
        BorderWidth="0" />
    </td>
  </tr>
</table>

Method 2: Ditch the Table (Cleaner Approach) #

Tables aren't necessary for just wrapping a single button. A simple <div> with text-align: center will work perfectly, and it's more semantic:

<div style="text-align: center;">
  <asp:ImageButton ID="CheckoutImageBtn" runat="server" 
    ImageUrl="https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif" 
    Width="145" 
    AlternateText="Check out with PayPal" 
    OnClick="CheckoutBtn_Click" 
    BackColor="Transparent" 
    BorderWidth="0" />
</div>

Method 3: Use an ASP.NET Panel (If You Prefer Server Controls) #

If you want to stick with ASP.NET server-side controls, a Panel renders as a <div> in the browser, so you can apply the same centering style to it:

<asp:Panel runat="server" Style="text-align: center;">
  <asp:ImageButton ID="CheckoutImageBtn" runat="server" 
    ImageUrl="https://www.paypal.com/en_US/i/btn/btn_xpressCheckout.gif" 
    Width="145" 
    AlternateText="Check out with PayPal" 
    OnClick="CheckoutBtn_Click" 
    BackColor="Transparent" 
    BorderWidth="0" />
</asp:Panel>

All of these should work in Visual Studio and render the button dead-center on your page. Just pick the approach that fits best with your existing markup!

内容的提问来源于stack exchange，提问作者voltt