diff --git a/jdmain.css b/jdmain.css
index 0a60c3e..e05acfa 100644
--- a/jdmain.css
+++ b/jdmain.css
@@ -106,10 +106,10 @@
     justify-content:space-evenly;
     align-items: center;
 }
-.home h3{
+.home >h3{
     font-size: 1.3rem;
 }
-.home p{
+.home >p{
     font-size: 1.2rem;
     line-height: 2.0;
 }
@@ -120,7 +120,7 @@
 .what_study{
     width:730px;
 }
-.home .what_study h3{
+.home > .what_study > h3{
     background: linear-gradient(transparent 50%, yellow 50%);
     width: 346px;
 }