refactor: 精简样式

Author: ArgoZhang

src/BootstrapBlazor.Server/Components/Pages/Index.razor

@@ -6,23 +6,21 @@
 
 <section class="bd-masthead">
     <div class="container-xxl bd-gutter">
-        <div class="col-md-8 mx-auto text-center">
-            <a class="d-flex flex-column flex-lg-row justify-content-center align-items-center mb-4 text-dark lh-sm text-decoration-none" href="https://github.com/dotnetcore/BootstrapBlazor?wt.mc_id=DT-MVP-5004174" rel="noopener" target="_blank">
-                <span class="d-sm-inline-flex align-items-center gap-1 py-2 px-3 mb-lg-0 rounded-5 masthead-notice">
+        <div class="text-center">
+            <a class="d-inline-flex text-dark text-decoration-none" href="https://github.com/dotnetcore/BootstrapBlazor?wt.mc_id=DT-MVP-5004174" rel="noopener" target="_blank">
+                <span class="py-2 px-3 rounded-5 masthead-notice">
                     @Localizer["Support"]
                 </span>
             </a>
-            <img src="./favicon.png" alt="bootstrap-blazor" class="bb-logo d-none d-sm-block mx-auto my-5">
+            <img src="./favicon.png" alt="bootstrap-blazor" class="bb-logo d-sm-block mx-auto my-5">
             <h1 class="mb-3 fw-semibold">@Localizer["Title"]</h1>
             <p class="lead mb-4">
                 @Localizer["SubTitle"]
             </p>
-            <div class="d-flex flex-column flex-lg-row align-items-md-stretch justify-content-md-center gap-3 mb-4">
-                <a href="introduction/" class="btn btn-lg bd-btn-lg btn-bd-primary d-flex align-items-center justify-content-center fw-semibold">
-                    <i class="fa-solid fa-book-open"></i>
-                    <span class="ms-2">@Localizer["Docs"]</span>
-                </a>
-            </div>
+            <a href="introduction/" class="btn btn-lg bd-btn-lg btn-bd-primary mb-4 d-inline-flex align-items-center justify-content-center fw-semibold">
+                <i class="fa-solid fa-book-open"></i>
+                <span class="ms-2">@Localizer["Docs"]</span>
+            </a>
             <p class="text-body-secondary mb-0">
                 Currently <strong>@_versionString</strong>
                 <span class="px-1">·</span>