diff --git a/index.html b/index.html
index c07e39d..a81ba51 100644
--- a/index.html
+++ b/index.html
@@ -715,7 +715,7 @@ <h2 class="title is-3">Videos</h2>
   <!--BibTex citation -->
   <section class="section" id="BibTeX">
     <div class="container is-max-desktop content">
-      <h2 class="title">BibTeX</h2>
+      <h2 class="title is-centered has-text-centered">BibTeX</h2>
       <pre><code>@ARTICLE{diffcr,
         author={Zou, Xuechao and Zhang, Shun and Li, Kai and Wang, Shiying and Xing, Junliang and Jin, Lei and Lang, Congyan and Tao, Pin},
         journal={arXiv}, 
@@ -732,7 +732,7 @@ <h2 class="title">BibTeX</h2>
   <!--Acknowledgements-->
   <section class="section" id="Acknowledgements">
     <div class="container is-max-desktop content">
-      <h2 class="title">Acknowledgements</h2>
+      <h2 class="title is-centered has-text-centered">Acknowledgements</h2>
       <p>
         This work was supported in part by the National Natural Science Foundation of China under Grant No. 62222606 and
         62076238.