feat: fix style

Author: ryoppippi

2025/src/components/AnnouncementSlides.astro

@@ -1,9 +1,15 @@
 <iframe
   src="https://docs.google.com/presentation/d/e/2PACX-1vT62Rl7c-bAJ4l2REq__4nvaLW4ZCuTEblh1PGpOa2ZA2Wg6jUm08KWTP-liYFLe2m80RFd5oB-DP8v/embed?start=false&loop=false&delayms=3000"
   frameborder="0"
-  width="960"
-  height="569"
   allowfullscreen="true"
   mozallowfullscreen="true"
   webkitallowfullscreen="true"
 />
+
+<style>
+iframe {
+  border: 0;
+  width: 100%;
+  height: 50vh;
+}
+</style>

2025/src/components/VenueMap.astro

@@ -1,6 +1,12 @@
 <iframe
   src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d3240.053340275775!2d139.77188631510504!3d35.70030498018984!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x60188ea7a29cf80b%3A0xdce74a4dd51e0a66!2z5a-M5aOr44K944OV44OI44Ki44Kt44OQ44OX44Op44K2!5e0!3m2!1sja!2sjp!4v1513741028586&amp;key=AIzaSyDYecdzqzXTkep-BSPK-rl52Yx3D1HFjME"
   height="400"
-  style="border:0;width:100%"
   allowfullscreen=""
 />
+
+<style>
+iframe {
+  border: 0;
+  width: 100%;
+}
+</style>