diff --git a/SQIntervalTimer/SQIntervalTimer/Base.lproj/Main.storyboard b/SQIntervalTimer/SQIntervalTimer/Base.lproj/Main.storyboard
index 4d6ba584..fefd74d1 100644
--- a/SQIntervalTimer/SQIntervalTimer/Base.lproj/Main.storyboard
+++ b/SQIntervalTimer/SQIntervalTimer/Base.lproj/Main.storyboard
@@ -16,7 +16,7 @@
                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                         <subviews>
                             <pickerView autoresizesSubviews="NO" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="8Xd-6t-B0t">
-                                <rect key="frame" x="15" y="145" width="399" height="216"/>
+                                <rect key="frame" x="54.5" y="145" width="320" height="216"/>
                                 <constraints>
                                     <constraint firstAttribute="height" constant="216" id="YFg-Q9-gId"/>
                                 </constraints>
@@ -25,17 +25,15 @@
                                     <outlet property="delegate" destination="BYZ-38-t0r" id="IP9-Xy-nc1"/>
                                 </connections>
                             </pickerView>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="秒" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="hPF-DO-Rzk">
-                                <rect key="frame" x="96" y="236" width="21" height="34"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="秒" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="hPF-DO-Rzk">
+                                <rect key="frame" x="127" y="240" width="22.5" height="26.5"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="22"/>
                                 <color key="textColor" red="0.76684117892066839" green="0.76684117892066839" blue="0.76684117892066839" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="秒" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="13o-bN-7YL">
-                                <rect key="frame" x="237" y="237" width="21" height="34"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="秒" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="13o-bN-7YL">
+                                <rect key="frame" x="235.5" y="240" width="22.5" height="26.5"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="22"/>
                                 <color key="textColor" red="0.76684117892066839" green="0.76684117892066839" blue="0.76684117892066839" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                 <nil key="highlightedColor"/>
                             </label>
@@ -69,31 +67,27 @@
                                     <constraint firstAttribute="height" constant="1" id="1m4-H7-HWM"/>
                                 </constraints>
                             </view>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="执行" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="T9I-mf-wOK">
-                                <rect key="frame" x="30" y="236" width="41" height="34"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="执行" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="T9I-mf-wOK">
+                                <rect key="frame" x="48.5" y="240" width="45" height="26.5"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="22"/>
                                 <color key="textColor" red="0.76684117892066839" green="0.76684117892066839" blue="0.76684117892066839" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="休息" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="dkn-zj-XIU">
-                                <rect key="frame" x="156" y="235" width="41" height="34"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="休息" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="dkn-zj-XIU">
+                                <rect key="frame" x="157" y="240" width="45" height="26.5"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="22"/>
                                 <color key="textColor" red="0.76684117892066839" green="0.76684117892066839" blue="0.76684117892066839" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="次" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="kli-UI-BPo">
-                                <rect key="frame" x="368" y="235" width="21" height="34"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="次" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="kli-UI-BPo">
+                                <rect key="frame" x="344" y="240" width="22.5" height="26.5"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="22"/>
                                 <color key="textColor" red="0.76684117892066839" green="0.76684117892066839" blue="0.76684117892066839" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                 <nil key="highlightedColor"/>
                             </label>
-                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" text="循环" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="5GG-lx-Gu6">
-                                <rect key="frame" x="293" y="235" width="41" height="34"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                                <fontDescription key="fontDescription" type="boldSystem" pointSize="20"/>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="循环" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="2" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="5GG-lx-Gu6">
+                                <rect key="frame" x="265.5" y="240" width="45" height="26.5"/>
+                                <fontDescription key="fontDescription" type="boldSystem" pointSize="22"/>
                                 <color key="textColor" red="0.76684117892066839" green="0.76684117892066839" blue="0.76684117892066839" alpha="1" colorSpace="custom" customColorSpace="displayP3"/>
                                 <nil key="highlightedColor"/>
                             </label>
@@ -122,22 +116,33 @@
                         </subviews>
                         <color key="backgroundColor" red="0.10980392160000001" green="0.10980392160000001" blue="0.10980392160000001" alpha="1" colorSpace="calibratedRGB"/>
                         <constraints>
-                            <constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="8Xd-6t-B0t" secondAttribute="trailing" id="5Jt-xB-cwZ"/>
+                            <constraint firstItem="dkn-zj-XIU" firstAttribute="leading" secondItem="hPF-DO-Rzk" secondAttribute="trailing" constant="7.5" id="012-nn-Sy3"/>
+                            <constraint firstItem="hPF-DO-Rzk" firstAttribute="centerY" secondItem="8Xd-6t-B0t" secondAttribute="centerY" id="3sJ-iE-kWc"/>
                             <constraint firstItem="kHu-8m-66E" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" constant="52" id="62N-gS-JfV"/>
                             <constraint firstItem="Qjv-ld-sNL" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" constant="35" id="6VP-dP-N8q"/>
                             <constraint firstItem="6Tk-OE-BBY" firstAttribute="bottom" secondItem="Qjv-ld-sNL" secondAttribute="bottom" constant="20" id="6ue-vq-FFF"/>
                             <constraint firstAttribute="trailing" secondItem="stF-Hm-XEy" secondAttribute="trailing" constant="15" id="7bU-n6-5Id"/>
+                            <constraint firstItem="13o-bN-7YL" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" constant="39.5" id="7eJ-r2-XdG"/>
                             <constraint firstItem="8Xd-6t-B0t" firstAttribute="top" secondItem="kHu-8m-66E" secondAttribute="bottom" constant="8" id="BcZ-J2-Mix"/>
-                            <constraint firstItem="8Xd-6t-B0t" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" constant="15" id="CrY-dG-MmA"/>
+                            <constraint firstItem="13o-bN-7YL" firstAttribute="centerY" secondItem="8Xd-6t-B0t" secondAttribute="centerY" id="CuN-3w-unM"/>
+                            <constraint firstItem="kli-UI-BPo" firstAttribute="leading" secondItem="5GG-lx-Gu6" secondAttribute="trailing" constant="33.5" id="D1h-q0-uD7"/>
+                            <constraint firstItem="5GG-lx-Gu6" firstAttribute="centerY" secondItem="8Xd-6t-B0t" secondAttribute="centerY" id="G19-l3-Si0"/>
+                            <constraint firstItem="hPF-DO-Rzk" firstAttribute="leading" secondItem="T9I-mf-wOK" secondAttribute="trailing" constant="33.5" id="HXN-a6-dY0"/>
+                            <constraint firstItem="dkn-zj-XIU" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" constant="-27.5" id="N35-Hk-fIW"/>
+                            <constraint firstItem="kli-UI-BPo" firstAttribute="centerY" secondItem="8Xd-6t-B0t" secondAttribute="centerY" id="O9C-sc-QGZ"/>
                             <constraint firstItem="yDf-Ly-a3k" firstAttribute="centerY" secondItem="kHu-8m-66E" secondAttribute="centerY" id="P2e-Au-2O8"/>
+                            <constraint firstItem="T9I-mf-wOK" firstAttribute="centerY" secondItem="8Xd-6t-B0t" secondAttribute="centerY" id="PlU-eJ-Ywc"/>
                             <constraint firstItem="6Tk-OE-BBY" firstAttribute="bottom" secondItem="6xl-uf-8Po" secondAttribute="bottom" constant="20" id="Q7U-3i-snq"/>
                             <constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="6xl-uf-8Po" secondAttribute="trailing" constant="35" id="REI-Uw-I3y"/>
+                            <constraint firstItem="5GG-lx-Gu6" firstAttribute="leading" secondItem="13o-bN-7YL" secondAttribute="trailing" constant="7.5" id="UER-90-AZI"/>
                             <constraint firstItem="stF-Hm-XEy" firstAttribute="top" secondItem="Up2-SV-NfB" secondAttribute="bottom" constant="34" id="Zky-9x-1Kx"/>
                             <constraint firstItem="stF-Hm-XEy" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" constant="15" id="bxy-e2-8ry"/>
                             <constraint firstAttribute="trailing" secondItem="Up2-SV-NfB" secondAttribute="trailing" constant="15" id="eR1-fA-qUY"/>
+                            <constraint firstItem="8Xd-6t-B0t" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" constant="7.5" id="jGe-kk-M1I"/>
                             <constraint firstItem="kHu-8m-66E" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" constant="15" id="qr7-lB-hzT"/>
                             <constraint firstItem="Up2-SV-NfB" firstAttribute="top" secondItem="kHu-8m-66E" secondAttribute="bottom" constant="97" id="qsQ-c0-05R"/>
                             <constraint firstItem="Up2-SV-NfB" firstAttribute="leading" secondItem="8bC-Xf-vdC" secondAttribute="leading" constant="15" id="wRY-88-z18"/>
+                            <constraint firstItem="dkn-zj-XIU" firstAttribute="centerY" secondItem="8Xd-6t-B0t" secondAttribute="centerY" id="xQU-gD-lJs"/>
                             <constraint firstItem="6Tk-OE-BBY" firstAttribute="trailing" secondItem="yDf-Ly-a3k" secondAttribute="trailing" constant="15" id="zL8-1C-4DI"/>
                         </constraints>
                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
@@ -150,7 +155,7 @@
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
             </objects>
-            <point key="canvasLocation" x="-209" y="179"/>
+            <point key="canvasLocation" x="-210.1449275362319" y="178.79464285714286"/>
         </scene>
     </scenes>
 </document>