diff --git a/tools/Base64/index.html b/tools/Base64/index.html
index f11d751..2090200 100644
--- a/tools/Base64/index.html
+++ b/tools/Base64/index.html
@@ -5,7 +5,7 @@
     <button type="button" onclick="doencode();">Encode</button>
     <button type="button" onclick="dodecode();">Decode</button><br>
     <label>Output</label><br>
-    <textarea id="output" disabled></textarea><br>
+    <textarea id="output" readonly></textarea><br>
     <button type="button" id="copy" onclick="docopy">Copy</button>
 </form>