html {
    margin-right: calc(-1 * (100vw - 100%));
    overflow-x: hidden;
}

body {
    padding:0; margin:0; 
    font-family: Arial, Helvetica, sans-serif; 
    color: rgb(0, 0, 0);
}
h1, h2, h3, h4, h5, h6 {
    padding:0; 
    margin:0
}
ul, li {
    padding: 0; 
    margin:0; 
    display: block
}
a {
    text-decoration: none; 
    color:rgb(0, 0, 0)
}
.container {
    max-width: 980px;
    margin: 0 auto; /*позиционирование по центру*/
    padding-left: 10px;
    padding-right: 10px;
    zoom: 1;
}
.header{
    position: fixed;
    top:0;
    padding-top: 10px;
    padding-bottom: 10px;
    background-color:rgb(81, 49, 112);
    width: 100vw;
    margin-bottom: 20px;
    z-index: 10;
}
.data .container{
    display: flex;
    margin-top: 130px;
    margin-bottom: 130px;
}
.left {
    width: 5vw;
}
.center {
    width: 90vw;
}
.right {
    width: 5vw;
    z-index: 9;
}
.footer{
    position: fixed;
    bottom:0;
    padding-top: 10px;
    padding-bottom: 10px;
    width: 100vw;
}
.nav {
    display: flex;
    align-items: center;
}
.menu {
    display:flex;
}

.navmain {
    margin: 0 auto;
    width: 300px;
}
.loginname{  
    margin-left: auto;
}
.btn{
    display: block;
    padding-left:10px;
    padding-right:10px;
    padding-top:20px;
    padding-bottom:20px;
    background-color:rgb(230, 230, 230);
    border: solid 2px rgb(20, 20, 20);
    transition: all 0.2s ease;
    font-family: Arial, Helvetica, sans-serif; 
    font-size: 25px;
    margin-left:5px;
    margin-right:5px;
    margin-top:5px;
    margin-bottom:5px;
    min-width: 50px;
    text-align: center;
    cursor: pointer;
    box-sizing: inherit;
}
.btn:hover{
    color:rgb(255, 255, 255);
    background-color: rgb(122, 122, 122);
}
.dictionary{
    width: 300px;
    margin: 10px auto
}
.projecttable{
    line-height: 30px;
}

.boldtext{
    font-weight: bold;
}

.errorlist li{
    display:block;
    padding:5px;
    margin-bottom: 3px;
    border: solid 1px;
    border-color: rgb(148, 148, 148);
    border-radius: 4px;
}
.errorlist li:before {
    content: "!";
    font-weight: bold;
    color:rgb(255, 255, 255);
    padding:2px 9px 2px 9px;
    margin: 2px;
    background-color: rgb(185, 11, 11);
    border-radius: 2px;
}