Code:

/* Général */

.hiden{
  display: none;
}

body{
  margin: 0;
}

a, a:hover{
  text-decoration: none !important;
}

div, :root{
  scrollbar-color: rgb(224,237,234) rgb(108, 142, 150) !important;
  scrollbar-width: thin !important;
}

::-webkit-scrollbar{
  width: 5px;
  background-color: rgb(108, 142, 150);
}

::-webkit-scrollbar-thumb {
  background: rgb(224,237,234);
}

#i_logo {
  margin-top: -1px;
  width: 850px;
  margin-bottom: -47px;
}

/* Fil d'ariane */

.unav img, .nav img{
  width: 200px;
}

.unav{
  height: 40px;
  width: 100%;
  color: white;
  background-color: #4f636d;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}

.unav a{
  font-family: 'Arial';
  text-transform: uppercase;
  font-size: 10pt;
  font-weight: bold !important;
  color: white !important;
}

/* Navigation */

#navig{
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100px;
  background-color: #b7c8cb;
}

#avatarBefore{
  background: linear-gradient(#86b2b9,#b7c8cb);
  height: 90px;
  padding-top: 10px;
}

#discord2{
  margin-top: 40px;
}

/*Nav + QEEL*/
#avatar, #cadreAvatar{
  height: 70px;
  width: 70px;
  border-radius: 50%;
  overflow: hidden;
  margin: auto;
  border: 3px solid white;
}

#avatar img, #cadreAvatar img{
  width: 70px;
}

.infobulle{
  position: relative;
}

.infobulle img{
  display: block;
  margin: 10px auto;
}

.infobulle img:hover{
  filter: opacity(50%);
}

.infobulleText{
  top: 0px;
  left: 70px;
  visibility: hidden;
  font-size: 15pt;
  padding-left: 15px;
  padding-right: 15px;
  background-color: #e3f1f1;
  color: #5c5156;
  font-family: 'Onyx';
  text-transform: uppercase;
  font-weight: bold;
  text-align: center;
  border-radius: 15px;
  position: absolute;
}

.infobulle:hover .infobulleText {
    visibility: visible;
}

/* Barre sous le header */

#barreHeader{
  width: 850px;
  height: 100px;
  background: linear-gradient(0.25turn, #8eb4ba, #a4b9be);
  margin: -2px auto;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 30px;
}

#barreHeader > div{
  margin-left: 10px;
  margin-right: 10px;
}

#welcome{
  font-family: 'Impact';
  font-size: 35pt;
  color: #ffffff;
  text-transform: uppercase;
}

#username{
  font-family: 'Impact';
  text-transform: uppercase;
  color: #e5ec84;
  font-size: 20pt;
  letter-spacing: 1pt;
}

#welcome, #username{
  text-align: center;
}

#votez, #version, #staff{
  font-family: 'Impact';
  text-transform: uppercase;
  color: #ffffff;
  font-size: 20pt;
  text-align: center;
}

#topsites{
  display: flex;
  justify-content: center;
}

#topsites img{
  margin: 5px;
}

#noteVersion{
  background-color: #d0dbdd;
  width: 148px;
  height: 42px;
  color: black;
  font-family: 'Arial';
  font-size: 11pt;
  margin: auto;
  padding: 5px;
  border-radius: 5px;
  overflow: auto;
}

.infoStaff{
  display: none;
  background-color: #d0dbdd;
  width: 115px;
  height: 40px;
  font-family: 'Arial';
  font-size: 8pt;
  font-weight: bold;
  text-transform: uppercase;
  border-radius: 5px;
  position: relative;
}

.infoStaff > img{
  position: absolute;
  border-radius: 5px;
  top: 0px;
  left: 0px;
  z-index: 1;
}

.textStaff{
  position: relative;
  z-index: 2;
  text-align: right;
  margin-right: 4px;
}

.buttonsStaff{
  margin-top: 25px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.buttonStaff{
  margin-left: -20px;
  height: 7px;
  width: 7px;
  border-radius: 50%;
  background-color: #709199;
  margin-top: 4px;
  cursor: pointer;
}

/* Page d'accueil */

#PA{
  width: 850px;
  display: flex;
  margin: auto;
  flex-wrap: wrap;
  position: relative;
}

#decoPA{
  position: absolute;
  top: 160px;
  left: 150px;
}

#context, #babillard, #partenairesPA, #newsPA, #liensPA{
  background-color: #a4b9be;
}

#liensPA{
  width: 850px;
  height: 46px;
  font-size: 10pt;
  display: flex;
  align-items: center;
}

#liensPA > div{
  height: 49px;
  width: 122px;
  padding-left: 5px;
  background: url('https://i.ibb.co/r5p82jQ/fl-che-liens.png');
  margin: 0px;
  display: flex;
  align-items: center;
}

#liensPA > a{
  display: block;
  padding-top: 3px;
  padding-bottom: 3px;
  padding-left: 11px;
  padding-right: 11px;
  background-color: #d0dbdd;
  border: 1px solid #ffffff;
  color: #5c5156 !important;
  margin-left: 10px;
  margin-right: 10px;
}

.PAColumn{
  display: flex;
  flex-direction: column;
}

.PAColumn > div{
  margin: 10px;
}

#context{
  height: 186px;
  width: 250px;
  margin-left: 0px;
  padding: 5px;
  text-align: justify;
  font-family: 'Arial';
  font-size: 12pt;
  color: #676166;
  overflow-y: scroll;
}

#event{
  width: 260px;
  height: 80px;
  margin-top: 0px;
  margin-left: 0px;
  background-image: url('https://i.ibb.co/b3gjTv6/image-2021-08-05-100534.png');
}

#event > div{
  height: 50px;
  width: 230px;
  background-color: rgb(164, 185, 190, 0.8);
  color: #ffffff;
  font-weight: bold;
  text-transform: uppercase;
  font-size: 13pt;
}

#event, #event > div{
  display: flex;
  align-items: center;
  justify-content: center;
}

#babillard{
  margin-left: 0px;
  width: 282px;
  height: 195px;
  overflow: auto;
}

#babillard > div{
  margin-top: 3px;
  font-family: 'Arial';
  font-size: 11pt;
  text-transform: uppercase;
  text-align: center;
  color: white;
  overflow: auto;
}

#babillard > hr{
  width: 170px;
  color: white;
}

#babillard > p{
  font-family: 'Arial';
  font-size: 9pt;
  color: white;
  text-transform: uppercase;
  margin-top: 5px;
  margin-bottom: 5px;
  margin-left: 10px;
}

#babillard > p > span{
  font-size: 10pt !important;
  color: #5c5156 !important;
}

#partenairesPA{
  margin-top: 0px;
  margin-left: 0px;
  height: 80px;
  width: 282px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  position: relative;
}

#alliance{
  font-size: 10pt;
  height: 36px;
  width: 80px;
  transform: rotate(-90deg);
  background-color: #d0dbdd;
  position: absolute;
  top: 22px;
  left: -22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#partenairesPA img{
  height: 32px;
  width: 32px;
  border-radius: 5px;
  margin-left: 5px;
  margin-right: 5px;
}

.buttonAlliance{
  font-family: 'Arial';
  font-size: 8pt;
  text-transform: uppercase;
  display: block;
  color: #5c5156 !important;
  background-color: #d0dbdd;
  padding-top: 1px;
  padding-bottom: 1px;
  padding-left: 5px;
  padding-right: 5px;
  margin-left: 10px;
}

#newsPA{
  margin-left: 0px;
  margin-right: 0px;
  height: 284px;
  width: 288px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  overflow: auto;
}

.cadrePA{
  height: 50px;
  width: 50px;
  background-color: #d0dbdd;
  font-size: 9pt;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-left: 5px;
  margin-right: 5px;
  margin-top: 10px;
}

.textPA{
  width: 200px;
  height: 50px;
  padding-left: 5px;
  padding-right: 5px;
  margin-left: 5px;
  margin-right: 5px;
  margin-top: 10px;
  font-size: 9pt;
  text-align: justify;
  overflow-y: scroll;
  border-bottom: 1px solid #d0dbdd;
}

.textPA, .cadrePA, #alliance, #liensPA{
  font-family: 'Arial';
  text-transform: uppercase;
  color: #5c5156;
}

/* Catégories : code commun */

.subForumCate{
  height: 60px;
  overflow: auto;
  position: absolute;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.subForumCate a{
  display: block;
  background: linear-gradient(0.25turn, #8eb4ba, #a4b9be);
  padding: 5px;
  margin-top: 5px;
  margin-right: 5px;
  height: 10px;
  font-family: 'Arial';
  font-weight: bold;
  font-size: 9pt;
  color: #5c5156;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
}

.subForumCate a:hover{
  background: linear-gradient(0.25turn, #8eb4ba, #8eb4ba);
  color: #5c5156 !important;
}

.lastPost{
  text-transform: uppercase;
  font-size: 8pt;
  font-family: 'Arial';
  width: 130px;
}

.lastPost a{
  font-family: 'Impact';
  color: white;
  font-size: 8pt;
  letter-spacing: 1pt;
}

.lastAvatar img{
  width: 35px;
  height: 45px;
  border: 1px solid white;
  margin: 5px;
}

.sujMess{
  font-family: 'Arial';
  font-size: 8pt;
  text-transform: uppercase;
}

.new{
  margin: 5px;
}

.hidenImage{
  display: none;
}

/* QEEL */

#qeel{
  width: 850px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

#qeel > div{
  margin: 5px;
}

#firstColumnQeel{
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

#lineAvatar{
  display: flex;
}

#totalUser, #totalOnline, #totalPost, #hour1{
  display: none;
}

#lineAvatar > div > #membresQeel{
  margin-top: 5px;
}

#bienvenueQeel{
  color: white;
  font-family: 'Impact';
  text-transform: uppercase;
  font-size: 18pt;
  letter-spacing: '2pt';
}

#pseudoQeel{
  color: #3f353b;
  background-color: #a4b9be;
  padding-top: 2px;
  padding-bottom: 2px;
  padding-left: 2px;
  width: 130px;
  font-family: "Arial";
  font-size: 11pt;
  text-transform: uppercase;
}

#membresQeel{
  width: 110px;
  padding-top: 2px;
  padding-bottom: 2px;
  font-size: 10pt;
  font-family: "Impact";
  text-transform: uppercase;
  letter-spacing: 1pt;
  color: white;
  background-color: #4f636d;
  margin: auto;
  text-align: center;
}

#hours{
  background-color: #a4b9be;
  padding: 5px;
  height: 180px;
  width: 216px;
  font-size: 11pt;
  text-align: justify;
  font-family: 'Impact';
  text-transform: uppercase;
  color: #3f353b;
  margin: auto;
  font-weight: normal !important;
}

.buttonQeel{
  width: 198px;
  margin-top: 10px;
  background-color: #a4b9be;
  color: #3f353b;
  font-size: 14pt;
  font-family: 'Impact';
  text-transform: uppercase;
  text-align: center;
}

.descrGroup{
  display: none;
  background-image: url('https://media.discordapp.net/attachments/872562597835186278/873642095590658048/groupe_description.png');
  width: 150px;
  height: 190px;
  opacity: 0.75;
  justify-content: center;
  align-items: center;
}

.descrGroup > div{
  width: 120px;
  height: 170px;
  background-color: #4f636d;
  padding 5px;
  font-family: 'Arial';
  color: white;
  text-transform: uppercase;
  text-align: justify;
  font-size: 9pt;
  overflow: auto;
}

#lineGroups{
   flex-direction: column;
  align-items: center;
}

#lineGroups > div{
  margin-top: 4px;
  margin-bottom: 4px;
  height: 30px;
  width: 200px;
  cursor: pointer;
}

.textGroup{
  display: flex;
  align-items: center;
  justify-content: center;
  height: 30px;
  width: 200px;
  font-family: 'Arial';
  text-transform: uppercase;
  font-weight: bold;
  font-size: 11pt;
  color: #fff;
  opacity: 0;
}

#userOnline{
  background-color: #a4b9be;
  width: 850px;
  padding-top: 5px;
  padding-bottom: 5px;
  margin: 0;
  text-align: center;
  text-transform: uppercase;
  font-size: 11pt;
  font-family: 'Impact';
  text-transform: uppercase;
  color: #3f353b;
}

#credits{
  margin-top: 5px;
  background-color: #4f636d;
  height: 90px;
  width: 840px;
  overflow: auto;
  padding: 5px;
  font-family: 'Arial';
  font-size: 10pt;
  color: white;
  text-transform: uppercase;
  background-image: url('https://i.ibb.co/yXT9Jt9/credit-qeel.png');
  display: flex;
  align-items: center;
}

#credits div{
  margin-left: 500px;
  text-align: justify;
}

.titreParto{
  font-family: 'Impact';
  text-transform: uppercase;
  font-size: 20pt;
  color: white;
  text-align: center;
  margin: 10px auto;
}

#parto2{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

#parto2 img{
  margin: 5px;
}

#parto1{
  display: flex;
  justify-content: center;
}

.heartParto{
  position: relative;
}

.textParto{
  position: absolute;
  top: 5px;
  left: 5px;
  z-index: 1;
  height: 75px;
  width: 200px;
  overflow: auto;
  background-color: rgba(255, 255, 255, 0.7);
  opacity: 0;
  transition: 1s;
}

.textParto:hover{
  opacity: 1;
}

.heartParto img{
  margin: 5px;
}

.textParto a{
  display: block;
  margin: auto;
  color: #3f353b !important;
  text-align: center;
  font-family: 'Impact';
  font-size: 16pt;
  text-transform: uppercase;
}

.textParto div{
  font-family: 'Arial';
  font-size: 9pt;
  text-transform: uppercase;
  margin-left: 5px;
  margin-right: 5px;
  color: #5c5156;
}

/* Profil */

.feuillePerso{
  height: 150px;
  width: 850px;
  background-image: url('https://i.ibb.co/DM0C26x/haut.png');
}

.espaceAvatar{
  width: 240px;
}

.avatarProfil{
  position: relative;
}

.avatarProfil img{
  display: block;
  margin: auto;
  border-bottom: 5px solid #e5ec84;
}

.pseudoProfil a{
  margin: auto;
  display: block;
  text-align: center;
  font-family: "Impact";
  font-size: 18pt !important;
  letter-spacing: 1pt;
  text-transform: uppercase;
}

.profilField{
  margin: auto;
  width: 190px;
  padding: 5px;
  background-color: #6c8e96;
  font-family: 'Arial';
  text-transform: uppercase;
  font-weight: bold;
  color: white !important;
  font-size: 10pt;
  margin-bottom: 5px;
}

.profilField span{
  color: white !important;
}

.topicTitle{
  background-color: #a2ced8;
  color: white;
  text-transform: uppercase;
  font-family: 'Arial';
  font-size: 11pt;
  font-weight: bold;
  padding-top: 5px;
  padding-bottom: 5px;
}

.profilTd{
  background-color: #a4b9be;
}

.spaceProfil{
  background-color: #a2ced8;
}

.spaceProfil > div{
  width: 0; /*10 PX POUR BANDE BLEUE*/
}

.persoHide, .profilHide{
  display: none;
}

.linePerso, .lineLevel{
  display: flex;
  justify-content: center;
  width: 850px;
}

.lineLevel{
  margin-top: 10px;
}

.champPerso, .legendPerso{
  width: 100px;
  margin: 5px;
  text-align: center;
  flex-wrap: wrap;
}

.legendPerso, .lineLevel > div{
  font-size: 14pt;
  text-transform: uppercase;
  color: white;
  font-family: 'Impact';
}

.champPerso{
  display: flex;
  align-items: center;
  justify-content: center;
  height: 30px;
  overflow: hiden;
  color: white;
  font-size: 9pt;
  text-transform: uppercase;
  font-family: 'Arial';
  background-color: rgba(162, 206, 216, 0.55);
}

.lineLevel > img, .lineLevel > div{
  margin-left: 5px;
  margin-right: 5px;
}

.imagesPerso{
  display: none;
}

.lineImages{
  width: 850px;
  display: flex;
  justify-content: center;
  margin-top: 5px;
}

.hoverAvatar{
  width: 180px;
  height: 320px;
  position: absolute;
  top: 20px;
  left: 30px;
  background-color: #6c8e96;
  opacity: 0;
  transition: 1s;
}

.hoverAvatar:hover{
  opacity: 1;
}

.profilL{
  width: 150px;
  padding: 5px;
  color: #6c8e96 !important;
  background-color: white;
  font-family: 'Arial';
  font-size: 9pt;
  text-transform: uppercase;
  margin: 5px auto;
}

.hoverAvatar span{
  color: #6c8e96 !important;
}

.coins{
  display: flex;
  justify-content: center;
  align-items: center;
}

.coins > img{
  border: none !important;
  display: inline;
  margin: initial;
}

.coins > div{
  font-family: 'Arial';
  text-transform: uppercase;
  font-size: 9pt;
  color: white;
}

/* Liste des sujets */

.topic-title, .topic-title .topictitle, .poster a, .lastposttime, .poster{
  text-align: center;
  text-transform: uppercase;
  font-family: 'Arial';
  font-size: 11pt;
  font-weight: normal !important;
}

.lastposttime, .poster{
  color: white;
}

.lastpost-avatar{
  border: 1px solid white;
  height: 50px;
  width: 50px;
  overflow: hidden;
  padding: 0 !important;
}

.lastpost-avatar img{
  width: 50px;
  height: 100px;
  border-radius: 0px;
}

.lineSuj{
  background-color: #a4b9be !important;
}

.lineSuj2{
  background-color: #6c8e96; !important;
  text-align: center;
  font-family: "Impact";
  font-size: 11pt;
  color: white;
  padding-top: 2px;
  padding-bottom: 10px;
}

/* Autre */

.stat1{
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
}

.buttonSearch{
  display: block;
  padding: 5px;
  margin: 5px auto;
  text-align: center;
  background: linear-gradient(0.25turn, #8eb4ba, #a4b9be);
  font-family: 'Arial';
  font-size: 9pt;
  color: white !important;
  text-transform: uppercase;
}

.buttonSearch:hover{
  background: linear-gradient(0.25turn, #8eb4ba, #8eb4ba);
}

.separStar{
  width: 600px;
  color: white;
}

#page-footer a{
  text-transform: uppercase;
  color: white !important;
  font-family: 'Arial';
  font-size: 9pt;
}

#page-footer a:hover{
  color: white !important;
}

#page-footer{
  background-color: #4f636d;
  padding-top: 10px;
  padding-bottom: 10px;
  width: 850px;
  margin: auto;
}

#page-footer a[href^="/admin"]{
  box-shadow: inset 2px 0px 7px rgba(0, 0, 0, 35%);
  background: #6c8e96;
  padding-top: 5px;
  color: #fbfbfb !important;
  font-family: impact;
  letter-spacing: 2pt;
  font-size: 13pt;
  width: 280px;
  height: 25px;
  display: block;
}

/* Profil (vue) */

#bandeProfil{
  height: 50px;
  width: 100%;
  margin: auto;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1;
  position: relative;
  margin-bottom: -15px;
}

.contact{
  font-size: 0px;
}

#contentProfil{
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  width: 850px;
  z-index: 2;
  position: relative;
}

#textProfil, #avatar_membre{
  margin: 5px;
}

#textProfil{
  display: flex;
  width: 580px;
  height: 360px;
  background-color: #a4b9be;
}

.columnProfil{
  width: 280px;
  height: 350px;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 5px;
}

#usernameProfil{
  font-family: "Impact";
  text-align: center;
  text-transform: uppercase;
  font-size: 20pt;
  letter-pacing: 2pt;
}

#rankProfil{
  margin: auto;
  font-size: 0pt;
}

.feuillePersoP .gen, .feuillePersoP, .champProfilP, .champProfilP span{
  font-family: "Arial";
  font-size: 10pt;
  text-transform: uppercase;
  color: white !important;
}

.champProfilP div, .champProfilP span{
  display: inline;
}

.userPost a{
  margin-top: -5px;
  display: block;
  width: 255px;
  padding-left: 4px;
  padding-right: 4px;
  background-color: white;
  color: #1e2527 !important;
  text-transform: uppercase;
  font-family: 'Arial';
  font-size: 9pt;
  padding-top: 3px;
  padding-bottom: 3px;
  transition: 1s;
}

.userPost a:hover{
  background-color: #1e2527;
  color: white !important;
}

.profilHide2{
  display: none;
}

.profilSecond{
  background-color: #a4b9be;
  width: 386px;
  height: 210px;
  margin: 5px;
  border: 2px solid white;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  overflow: auto;
  color: white;
  text-transform: uppercase;
  font-family: 'Arial';
  font-size: 11pt;
}

.profilSecond img{
  width: 50px;
  height: 50px;
}

.titleSecond{
  height: 20px;
  width: 100%;
  text-transform: uppercase;
  color: #1e2527;
  background-color: white;
  font-family: "Arial";
  font-size: 9pt;
  text-align: center;
}

/* Liste des membres */

#listeMembres{
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  width: 800px;
  margin: auto;
}

#listeMembres > div{
  width: 200px;
  height: 120px;
  margin: auto;
  background-color: #a4b9be;
  display: flex;
  margin: 10px;
  position: relative;
}

.postMembers{
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200px;
  height: 30px;
  color: white;
  text-transform: uppercase;
  font-family: "Impact";
  font-size: 11pt;
  display: flex;
  align-items: center;
  justify-content: center;
}

#listeMembres img{
  width: 50px;
}

.pseudoMembres{
  display: block;
  width: 150px;
  padding-top: 1px;
  padding-bottom: 1px;
  text-align: center;
  font-family: "Impact";
  font-size: 11pt;
  letter-spacing: 2pt;
  text-transform: uppercase;
}

.joined{
  color: white;
  font-family: "Arial";
  font-size: 9pt;
  margin: 2px;
  text-align: center;
}

.MP a{
  display: block;
  padding: 1px;
  color: white !important;
  margin: auto;
  font-family: "Impact";
  font-size: 9pt;
  width: 50px;
  text-align: center;
}

.genmedTable td{
  background-color: #a4b9be;
  padding: 2pt;
  text-align: center;
  color: white;
  font-family: Arial;
  text-transform: uppercase;
  font-size: 10pt;
}

.titleMembres{
  background-color: #a4b9be;
  width: 850px;
  padding-top: 5px;
  padding-bottom: 5px;
  font-family: "Onyx";
  font-size: 50pt;
  text-align: center;
  color: white;
  letter-spacing: 5pt;
}

/* Mobile */

@media all and (max-width: 1024px){
  #navig{
    width: 50px;
  }
 
  #avatarBefore{
    display: none;
  }
 
  #navig img{
    margin-left: 10px auto;
  }
 
  #avatar{
    width: 35px;
    height: 35px;
  }
 
  #avatar img{
    width: 35px;
  }
 
  #version{
    font-size: 16pt;
  }
 
  body{
    margin-left: 50px;
   
  }
 
  .sujMess{
    display: none !important;
  }
 
  .boxCate .forumlink{
    font-size: 14pt !important;
  }
 
  .mobileCate{
    width: 280px;
  }
 
  .lastAvatar{
    display: none;
  }
 
  .infobulle img{
    margin: 20px auto;
  }
 
  .legendPerso{
    font-size: 11pt !important;
  }
 
}