diff --git a/teach/dcs290/s2024.html b/teach/dcs290/s2024.html
index 941980a..549986c 100644
--- a/teach/dcs290/s2024.html
+++ b/teach/dcs290/s2024.html
@@ -73,19 +73,19 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
  <tr bgcolor="#C8C4B3">
   <td width="12%"><font face="Arial, Helvetica, sans-serif"><b>Week/Date</b></font>
   </td>
-  <td width="47%"><font face="Arial, Helvetica, sans-serif"><b>Lecture</b></font>
+  <td width="45%"><font face="Arial, Helvetica, sans-serif"><b>Lecture</b></font>
   </td>
-  <td width="32%" align="center"><font face="Arial, Helvetica, sans-serif">
+  <td width="25%" align="center"><font face="Arial, Helvetica, sans-serif">
      <b>Lab</b></font>
   </td>
-  <td width="13%" align="center"><font face="Arial, Helvetica, sans-serif">
+  <td width="18%" align="center"><font face="Arial, Helvetica, sans-serif">
      <b>Note</b></font>
   </td>
  </tr>
 
  <tr>
   <td>wk1: 2/27</td>
-  <td><a class="link-other" href="slides-23/lec_0.pdf"><img src="../acc/PDF_icon.png" height=20 />Overview</a></td>
+  <td><a class="link-other" href="slides-24/lec_0.pdf"><img src="../acc/PDF_icon.png" height=20 />Overview</a></td>
   <td align="center"></td>
   <td align="center"><a href="link-other" href="https://zwshan.github.io/SYsU-lang-doc/#/introduction/environment?id=%e8%bd%af%e4%bb%b6%e5%ae%89%e8%a3%85">Linux env</a></td>
  </tr>
@@ -113,10 +113,10 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
  <tr>
   <td>wk3: 3/12</td>
   <td>Lexical Analysis: NFA, DFA (3), Parse</td>
+  <td align="center"></td>
   <td align="center">
 	  <font color="brown"><img src="../acc/PDF_icon.png" height=20 />HW1</font>
   </td>
-  <td align="center"></td>
  </tr>
  <tr>
   <td>wk3: 3/14</td>
@@ -143,8 +143,8 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
  <tr>
   <td>wk5: 3/26</td>
   <td>Syntax Analysis: Top-down (2)</td>
-  <td align="center"><font color="red">HW1 due</font></td>
   <td align="center"></td>
+  <td align="center"><font color="red">HW1 due</font></td>
  </tr>
  <tr>
   <td>wk5: 3/28</td>
@@ -175,10 +175,10 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
  <tr>
   <td>wk7: 4/11</td>
   <td>Synatx: LR-parse (4)</td>
-  <td align="center">Lab<br>
+  <td align="center">Lab</td>
+  <td align="center">
 	  <font color="brown"><img src="../acc/PDF_icon.png" height=20 />HW2</font>
   </td>
-  <td align="center"></td>
  </tr>
 
  <tr bgcolor="#E2E2E2">
@@ -201,11 +201,11 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
  <tr>
   <td>wk9: 4/23</td>
   <td>Semantic Analysis: SDT</td>
+  <td align="center"></td>
   <td align="center">
 	  <font color="brown"><img src="../acc/PDF_icon.png" height=20 />HW3</font> /
 	  <font color="red">HW2 due</font>
   </td>
-  <td align="center"></td>
  </tr>
  <tr>
   <td>wk9: 4/25</td>
@@ -235,8 +235,8 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
  <tr bgcolor="#E2E2E2">
   <td>wk12: 5/16</td>
   <td>Intermediate Code: Generation (3)</td>
-  <td align="center">Lab/<font color="red">HW3 due</font>
-  <td align="center"></td>
+  <td align="center">Lab</font>
+  <td align="center"><font color="red">HW3 due</td>
  </tr>
 
 <tr>
@@ -260,10 +260,10 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
 <tr>
   <td>wk15: 6/6</td>
   <td>Code Opt. (3), Target Code Generation (1)</td>
-  <td align="center">Lab<br>
-       <font color="brown"><img src="../acc/PDF_icon.png" height=20 />HW4</font>
+  <td align="center">Lab</td>
+  <td align="center">
+	  <font color="brown"><img src="../acc/PDF_icon.png" height=20 />HW4</font>
   </td>
-  <td align="center"></td>
  </tr>
 
  <tr bgcolor="#E2E2E2">
@@ -277,9 +277,9 @@ <h2 id='section_title'> <span class='highlight'><font color="#006600"> > Schedul
   <td>wk17: 6/20</td>
   <td>Target Code Generation (3)</td>
   <td align="center">Lab<br>
-	  <font color="red">proj4 due</font> / <font color="red">HW4 due</font>
+	  <font color="red">proj4 due</font>
   </td>
-  <td align="center"></td>
+  <td align="center"><font color="red">HW4 due</font></td>
  </tr>
 
  <tr bgcolor="#E2E2E2">