diff --git a/html/css/main.css b/html/css/main.css
index 8ad0ab1..cfcd7b6 100644
--- a/html/css/main.css
+++ b/html/css/main.css
@@ -18,7 +18,6 @@ body {
     margin: 0;
     padding: 0;
     font-family: system-ui, -apple-system, sans-serif;
-    overflow-x: hidden;
 }
 
 .debug {
@@ -106,7 +105,6 @@ body.debug-mode fieldset legend {
     font-weight: 400;
     line-height: 1.5;
     box-sizing: border-box;
-    overflow: hidden;
 }
 
 .footer {
diff --git a/html/index.html b/html/index.html
index 3b68016..c4c06d6 100644
--- a/html/index.html
+++ b/html/index.html
@@ -51,31 +51,30 @@
 			<div class="flex-container">
 				<input type="file" id="image_file" onchange="updateImage(true)" accept=".png,.jpg,.bmp,.webp,.jpeg">
 			</div>
-			<div class="flex-container">
+			<div class="flex-container options">
 				<div class="flex-group debug">
 					<label for="canvasSize">画布尺寸：</label>
 					<select id="canvasSize" onchange="updateCanvasSize()">
-						<option value="1.54_152_152">1.54_152_152 (152x152)</option>
-						<option value="1.54_200_200">1.54_200_200 (200x200)</option>
-						<option value="2.13_250_122">2.13_250_122 (250x122)</option>
-						<option value="2.66_296_152">2.66_296_152 (296x152)</option>
-						<option value="2.9_296_128">2.9_296_128 (296x128)</option>
-						<option value="2.9_384_168">2.9_384_168 (384x168)</option>
-						<option value="3.5_384_184">3.5_384_184 (384x184)</option>
-						<option value="3.7_416_240">3.7_416_240 (416x240)</option>
-						<option value="3.97_800_480">3.97_800_480 (800x480)</option>
-						<option value="4.2_400_300" selected>4.2_400_300 (400x300)</option>
-						<option value="5.79_792_272">5.79_792_272 (792x272)</option>
-						<option value="7.5_800_480">7.5_800_480 (800x480)</option>
-						<option value="10.2_960_640">10.2_960_640 (960x640)</option>
-						<option value="10.85_1360_480">10.85_1360_480 (1360x480)</option>
-						<option value="11.6_960_640">11.6_960_640 (960x640)</option>
-						<option value="4E_600_400">4E_600_400 (600x400)</option>
+						<option value="1.54_152_152">1.54 (152x152)</option>
+						<option value="1.54_200_200">1.54 (200x200)</option>
+						<option value="2.13_212_104">2.13 (212x104)</option>
+						<option value="2.13_250_122">2.13 (250x122)</option>
+						<option value="2.66_296_152">2.66 (296x152)</option>
+						<option value="2.9_296_128">2.9 (296x128)</option>
+						<option value="2.9_384_168">2.9 (384x168)</option>
+						<option value="3.5_384_184">3.5 (384x184)</option>
+						<option value="3.7_416_240">3.7 (416x240)</option>
+						<option value="3.97_800_480">3.97 (800x480)</option>
+						<option value="4.2_400_300" selected>4.2 (400x300)</option>
+						<option value="5.79_792_272">5.79 (792x272)</option>
+						<option value="7.5_800_480">7.5 (800x480)</option>
+						<option value="10.2_960_640">10.2 (960x640)</option>
+						<option value="10.85_1360_480">10.85 (1360x480)</option>
+						<option value="11.6_960_640">11.6 (960x640)</option>
+						<option value="4E_600_400">4E (600x400)</option>
 						<option value="7.3E6">7.3E6 (480x800)</option>
 					</select>
 				</div>
-			</div>
-			<div class="flex-container options">
 				<div class="flex-group debug">
 					<label for="ditherMode">颜色模式：</label>
 					<select id="ditherMode" onchange="updateImage(false)">
@@ -95,8 +94,6 @@
 						<option value="jarvis">Jarvis-Judice-Ninke</option>
 					</select>
 				</div>
-			</div>
-			<div class="flex-container options">
 				<div class="flex-group">
 					<label for="ditherStrength">抖动强度：</label>
 					<input type="range" min="0" max="5" step="0.1" value="1.0" id="ditherStrength" oninput="updateImage(false)">
diff --git a/html/js/main.js b/html/js/main.js
index 704922d..a594426 100644
--- a/html/js/main.js
+++ b/html/js/main.js
@@ -25,6 +25,7 @@ const EpdCmd = {
 const canvasSizes = [
   { name: '1.54_152_152', width: 152, height: 152 },
   { name: '1.54_200_200', width: 200, height: 200 },
+  { name: '2.13_212_104', width: 212, height: 104 },
   { name: '2.13_250_122', width: 250, height: 122 },
   { name: '2.66_296_152', width: 296, height: 152 },
   { name: '2.9_296_128', width: 296, height: 128 },