diff --git a/web/assets/css/custom.css b/web/assets/css/custom.css
index 718e87f8..728619e0 100644
--- a/web/assets/css/custom.css
+++ b/web/assets/css/custom.css
@@ -1,5 +1,23 @@
-#app {
+html,
+body {
     height: 100vh;
+    width: 100vw;
+    margin: 0;
+    padding: 0;
+    overflow: hidden;
+}
+
+#app {
+    height: 100%;
+    min-height: 100vh;
+    position: fixed;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    margin: 0;
+    padding: 0;
+    overflow: auto;
 }
 
 .ant-space {
diff --git a/web/assets/js/axios-init.js b/web/assets/js/axios-init.js
index bd55c3cf..b864b714 100644
--- a/web/assets/js/axios-init.js
+++ b/web/assets/js/axios-init.js
@@ -2,7 +2,7 @@ axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded
 axios.defaults.headers.common['X-Requested-With'] = 'XMLHttpRequest';
 
 axios.interceptors.request.use(
-    config => {
+    (config) => {
         if (config.data instanceof FormData) {
             config.headers['Content-Type'] = 'multipart/form-data';
         } else {
@@ -12,5 +12,5 @@ axios.interceptors.request.use(
         }
         return config;
     },
-    error => Promise.reject(error)
+    (error) => Promise.reject(error),
 );
diff --git a/web/assets/js/langs.js b/web/assets/js/langs.js
index e83b05f3..9e1f0911 100644
--- a/web/assets/js/langs.js
+++ b/web/assets/js/langs.js
@@ -1,41 +1,41 @@
 const supportLangs = [
     {
-       name : "English",
-       value : "en-US",
-       icon : "🇺🇸"
+        name: 'English',
+        value: 'en-US',
+        icon: '🇺🇸',
     },
     {
-        name : "Farsi",
-        value : "fa_IR",
-        icon : "🇮🇷"
+        name: 'Farsi',
+        value: 'fa_IR',
+        icon: '🇮🇷',
     },
     {
-        name : "汉语",
-        value : "zh-Hans",
-        icon : "🇨🇳"
+        name: '汉语',
+        value: 'zh-Hans',
+        icon: '🇨🇳',
     },
     {
-        name : "Russian",
-        value : "ru_RU",
-        icon : "🇷🇺"
+        name: 'Russian',
+        value: 'ru_RU',
+        icon: '🇷🇺',
     },
-]
+];
 
-function getLang(){
-    let lang = getCookie('lang')
+function getLang() {
+    let lang = getCookie('lang');
 
-    if (! lang){
-        if (window.navigator){
+    if (!lang) {
+        if (window.navigator) {
             lang = window.navigator.language || window.navigator.userLanguage;
 
-            if (isSupportLang(lang)){
-                setCookie('lang' , lang , 150)
-            }else{
-                setCookie('lang' , 'en-US' , 150)
+            if (isSupportLang(lang)) {
+                setCookie('lang', lang, 150);
+            } else {
+                setCookie('lang', 'en-US', 150);
                 window.location.reload();
             }
-        }else{
-            setCookie('lang' , 'en-US' , 150)
+        } else {
+            setCookie('lang', 'en-US', 150);
             window.location.reload();
         }
     }
@@ -43,47 +43,21 @@ function getLang(){
     return lang;
 }
 
-function setLang(lang){
-
-    if (!isSupportLang(lang)){
+function setLang(lang) {
+    if (!isSupportLang(lang)) {
         lang = 'en-US';
     }
 
-    setCookie('lang' , lang , 150)
+    setCookie('lang', lang, 150);
     window.location.reload();
 }
 
-function isSupportLang(lang){
-    for (l of supportLangs){
-        if (l.value === lang){
+function isSupportLang(lang) {
+    for (l of supportLangs) {
+        if (l.value === lang) {
             return true;
         }
     }
 
     return false;
 }
-
-
-
-function getCookie(cname) {
-    let name = cname + "=";
-    let decodedCookie = decodeURIComponent(document.cookie);
-    let ca = decodedCookie.split(';');
-    for(let i = 0; i <ca.length; i++) {
-        let c = ca[i];
-        while (c.charAt(0) == ' ') {
-            c = c.substring(1);
-        }
-        if (c.indexOf(name) == 0) {
-            return c.substring(name.length, c.length);
-        }
-    }
-    return "";
-}
-
-function setCookie(cname, cvalue, exdays) {
-    const d = new Date();
-    d.setTime(d.getTime() + (exdays*24*60*60*1000));
-    let expires = "expires="+ d.toUTCString();
-    document.cookie =  cname + "=" + cvalue + ";" + expires + ";path=/";
-}
\ No newline at end of file
diff --git a/web/assets/js/util/common.js b/web/assets/js/util/common.js
index b3ebc0bd..808b1ba9 100644
--- a/web/assets/js/util/common.js
+++ b/web/assets/js/util/common.js
@@ -56,14 +56,37 @@ function toFixed(num, n) {
     return Math.round(num * n) / n;
 }
 
-function debounce (fn, delay) {
-    var timeoutID = null
+function debounce(fn, delay) {
+    var timeoutID = null;
     return function () {
-      clearTimeout(timeoutID)
-      var args = arguments
-      var that = this
-      timeoutID = setTimeout(function () {
-        fn.apply(that, args)
-      }, delay)
+        clearTimeout(timeoutID);
+        var args = arguments;
+        var that = this;
+        timeoutID = setTimeout(function () {
+            fn.apply(that, args);
+        }, delay);
+    };
+}
+
+function getCookie(cname) {
+    let name = cname + '=';
+    let decodedCookie = decodeURIComponent(document.cookie);
+    let ca = decodedCookie.split(';');
+    for (let i = 0; i < ca.length; i++) {
+        let c = ca[i];
+        while (c.charAt(0) == ' ') {
+            c = c.substring(1);
+        }
+        if (c.indexOf(name) == 0) {
+            return c.substring(name.length, c.length);
+        }
     }
-  }
\ No newline at end of file
+    return '';
+}
+
+function setCookie(cname, cvalue, exdays) {
+    const d = new Date();
+    d.setTime(d.getTime() + exdays * 24 * 60 * 60 * 1000);
+    let expires = 'expires=' + d.toUTCString();
+    document.cookie = cname + '=' + cvalue + ';' + expires + ';path=/';
+}
diff --git a/web/assets/js/util/date-util.js b/web/assets/js/util/date-util.js
index 24e08879..651101d8 100644
--- a/web/assets/js/util/date-util.js
+++ b/web/assets/js/util/date-util.js
@@ -128,14 +128,13 @@ Date.prototype.formatDateTime = function (split = ' ') {
 };
 
 class DateUtil {
-
     // 字符串转 Date 对象
     static parseDate(str) {
         return new Date(str.replace(/-/g, '/'));
     }
 
     static formatMillis(millis) {
-        return moment(millis).format('YYYY-M-D H:m:s')
+        return moment(millis).format('YYYY-M-D H:m:s');
     }
 
     static firstDayOfMonth() {
@@ -144,4 +143,4 @@ class DateUtil {
         date.setMinTime();
         return date;
     }
-}
\ No newline at end of file
+}
diff --git a/web/assets/js/util/utils.js b/web/assets/js/util/utils.js
index 9c441537..28891cd4 100644
--- a/web/assets/js/util/utils.js
+++ b/web/assets/js/util/utils.js
@@ -68,13 +68,11 @@ class HttpUtil {
 }
 
 class PromiseUtil {
-
     static async sleep(timeout) {
         await new Promise(resolve => {
             setTimeout(resolve, timeout)
         });
     }
-
 }
 
 const seq = [
@@ -95,7 +93,6 @@ const shortIdSeq = [
 ];
 
 class RandomUtil {
-
     static randomIntRange(min, max) {
         return parseInt(Math.random() * (max - min) + min, 10);
     }
@@ -153,8 +150,8 @@ class RandomUtil {
     static randomText() {
         var chars = 'abcdefghijklmnopqrstuvwxyz1234567890';
         var string = '';
-        var len = 6 + Math.floor(Math.random() * 5)
-        for(var ii=0; ii<len; ii++){
+        var len = 6 + Math.floor(Math.random() * 5);
+        for (var ii = 0; ii < len; ii++) {
             string += chars[Math.floor(Math.random() * chars.length)];
         }
         return string;
@@ -162,11 +159,11 @@ class RandomUtil {
 
     static randowShortId() {
         let str = '';
-        str += this.randomShortIdSeq(8)
+        str += this.randomShortIdSeq(8);
         return str;
     }
-    
-    static randomShadowsocksPassword(){
+
+    static randomShadowsocksPassword() {
         let array = new Uint8Array(32);
         window.crypto.getRandomValues(array);
         return btoa(String.fromCharCode.apply(null, array));
@@ -174,7 +171,6 @@ class RandomUtil {
 }
 
 class ObjectUtil {
-
     static getPropIgnoreCase(obj, prop) {
         for (const name in obj) {
             if (!obj.hasOwnProperty(name)) {
@@ -322,5 +318,4 @@ class ObjectUtil {
         }
         return true;
     }
-
 }