diff --git a/src/styles/post.css b/src/styles/post.css
index 03dc076..2109b53 100644
--- a/src/styles/post.css
+++ b/src/styles/post.css
@@ -246,7 +246,7 @@
     margin-bottom: 10px;
 }
 
-.IBMSMSMBSSPostBody > * > h1, h2, h3, h4, h5, h6 {
+.IBMSMSMBSSPostBody > * > :is(h1, h2, h3, h4, h5, h6) {
     margin: 15px 0 15px 0 !important;
     border-bottom: solid 1px rgb(255 255 255 / 10%);
     padding: 0px 0 10px 0;