body{
    background-color: #F2F3F4;
    -webkit-user-select: none; /* Chrome, Safari, Opéra depuis la version 15 */
    -ms-user-select: none; /* Internet explorer depuis la version 10 et Edge */
    user-select: none; /* Propriété standard */
}

/* Pour faire clignoter un bouton
@keyframes blink {
  0% { opacity: 1; }
  80% { opacity: 1; }
  90% { opacity: 0; }
  100% { opacity: 1; }
}

.input-button {
    animation: blink 10s infinite;
}

Ajouter class="input-button" 
*/

input[type=text], textarea {
        width: 97%;
        padding: 12px 20px;
        margin: 8px 0;
        box-sizing: border-box;
        border: 1px solid #ccc;
        font-family:'Consolas';
        font-size:30px;
}
textarea {
        height: 70%;
        resize: none;
}
input[type=text]:focus, textarea:focus {
        border: 1px solid #000;
        outline: none;
}
input[type=submit]{
        width: 400px;
        height: 60px;
        cursor:pointer;
        line-height:1;
        margin:10px;
        text-align:center;
        padding-top:.5625em;
        padding-right:1.5em;
        padding-bottom:.5625em;
        padding-left:1.5em;
        font-family:sans-serif;
        font-size:30px;
        border:solid 1px #2284a1;
        background-color:#2ba6cb;
        color:#fff
}
input[type=submit]:hover{
        background-color:#2284a1;
}
input[type="checkbox"] {
        opacity: 0;
        width: 0;
        height: 0;
}
label {
        font-size:30px;
        font-weight: lighter;
        font-family:Consolas;
        display: flex;
        align-items: center;
}
label::before {
        content: '';
        width: 15px;
        height: 15px;
        padding: 0.3em;
        border: 1px solid;
        margin-right: 0.5em;
        border-radius: 2px;
        line-height: 1.2rem;
        font-size:1.2rem;
        padding-left: 0.3rem;
}
input[type=checkbox]:checked + label::before { 
        content: '\2714';
        background-color: #2ba6cb;
        color:  white;
        border: 1px solid #2284a1;
}
.container{                 /*mail_new and mail_selector*/
    display: flex;
    flex-direction:column;
    align-items:center;
}
.browser-header{            /*all mail*/
    height: 75px;
    margin-top:3vh;
    background-color: #F2F3F4;
}
.browser-header.viewer{     /*emails.html*/
    width: 90vw;
    padding-left: 5vw;
}
.browser-header.new{        /*mail_new and mail_selector*/
    width: 70%;
    padding-left: 15px;
}
.browser-header-left{       /*all mail*/
    margin-left: 0;
    margin-right: 15px;
    display: flex;
    align-items: end;
    padding: 0;
    width: 25%;
    height: 100%;
    float: left; /*supprimer? */
    background-color: #F2F3F4;
}
.browser-header-right{      /*all mail*/
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    width: 55%;
    height: 100%;
    background-color: #F2F3F4;
    float: right;
    padding-right: 60px;
}

.mail-container{            /*emails.html*/
    width: 90vw;
    padding-left: 5vw;
    height: 85vh;
    background-color: #F2F3F4;
}
.mail-write-container{      /*mail_new and mail_selector*/
    display: flex;
    flex-direction: column;
    text-align: left;
    width: 70%;
    height: auto;
    border:solid 1px #ddd;
    background-color: white;
    padding: 0;
    margin: 0;
    padding-top: 10px;
    padding-left: 15px;
}
.mails-list{                /*emails.html*/
    margin-left: 0;
    margin-right: 15px;
    padding: 0;
    width: 33%;
    height: 100%;
    float: left;
    overflow-y: scroll;
    border:solid 1px #ddd;
    background-color: white;
}
.bloc{                      /*emails.html*/
    margin: 0;
    padding-top: 10px;
    padding-left: 10px;
    line-height : 1.3em;
    border-bottom:solid 1px #ddd;
    font-family: Consolas;
    cursor: pointer;
}
.bloc:hover{                /*emails.html*/
    margin: 0;
    padding-top: 9px;
    padding-left: 9px;
    line-height : 1.3em;
    font-family: Consolas;
    cursor: pointer;
    border:solid 1px black !important;
}

.mails-display-container{   /*emails.html*/
    display: flex;
    flex-direction: column;
    width: 65%;
    height: 100%;
    border:solid 1px #ddd;
    background-color: white;
}
.mails-header{              /*emails.html*/
    height: 100px;
    padding-top: 10px;
    padding-left: 10px;
    font-size: 25px;
    font-family: Consolas;
}
.mails-display{             /*emails.html*/
    height: 100%;
    padding-top: 10px;
    padding-left: 10px;
    font-size: 30px;
    overflow-y: scroll;
}


.mail-container-top-left{   /*mail_new*/
    margin-left: 8px;
    margin-right: 15px;
    display: flex;
    flex-direction: column;
    text-align: left;
    align-items: top;
    padding: 0;
    width: auto;
    height: 100%;
}
.mail-container-top-right{  /*mail_new*/
    display: flex;
    justify-content: right;
    align-items: center;
    width: 400px;
    height: 100%;
    float: right;
    padding-top:20px;
    padding-right: 60px;
}

.buttons-footer{           /*emails.html*/
    height: 80px;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
}
.button-footer{            /*mail_new and mail_selector*/
    text-align: center;
}
.left-button {
    float: left;
    cursor:pointer;
    border:solid 1px black;
}
.right-button {
    float: right;
    margin-right:40px;
    cursor:pointer;
    border:solid 1px black;
}
.button-hidden{            /*emails.html*/ 
    visibility: hidden;
}

.text-style{                /*mail_new*/
    font-family:sans-serif;
    font-size:25px;
}
.error-flag::placeholder {  /*mail_new*/
    color: red;
 }
.checkbox-container {       /*mail_selector*/
    display: grid;
    padding-bottom: 20px;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 10px;
    padding-left: 150px;
}