body, html {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0; }
    
   body {
    font-family: "helvetica", Arial, sans-serif; }
  
 .wrapper {
  min-height: 100%;
  overflow: hidden;
  position: relative;
  min-width: 1200px;
}
    .wrapper:after {
      content: "";
      display: block;
      height: 30px; }

   .container {
    /*width: 1150px;*/
    margin: 0 auto; }
    
   .footer {
    height: 30px;
    margin-top: -30px;
    position: relative;
    background: #fff;
    min-width: 1100px; }
    .footer .container {
      font-size: 12px;
      font-weight: 100;
      color: #202020;
      text-align: center;
      padding-top: 8px; }
    
   .page .container:after {
    content: "";
    display: block;
    clear: both; }
    
   .maincontent {
    padding-bottom: 100px; }
    
   * {
    box-sizing: border-box; }
    
   @font-face {
    font-family: 'digital-7';
    src: url("../fonts/digital-7_mono-webfont.woff") format("woff"), url("../fonts/digital-7_mono-webfont.svg#digital-7_monomono") format("svg");
    font-weight: normal;
    font-style: normal; }
   @font-face {
    font-family: 'helvetica';
    src: url("../fonts/helveticaneuecyr-light-webfont.woff") format("woff"), url("../fonts/helveticaneuecyr-light-webfont.svg#helveticaneuecyrlight") format("svg");
    font-weight: 100;
    font-style: normal; }
   @font-face {
    font-family: 'helvetica';
    src: url("../fonts/helveticaneuecyr-medium-webfont.woff") format("woff"), url("../fonts/helveticaneuecyr-medium-webfont.svg#helveticaneuecyrmedium") format("svg");
    font-weight: 300;
    font-style: normal; }
   @font-face {
    font-family: 'helvetica';
    src: url("../fonts/helveticaneuecyr-roman-webfont.woff") format("woff"), url("../fonts/helveticaneuecyr-roman-webfont.svg#helveticaneuecyrroman") format("svg");
    font-weight: 400;
    font-style: normal; }
   .wrapper {
/*    background: url("https://raw.githubusercontent.com/JuliaStP/Calc/master/img/bg/bg.jpg") center center no-repeat;*/
    background-size: cover; }
    
   .header {
    padding-top: 1px;
    margin-bottom: 5px; }
    
   .page__left, .page__right {
    float: left;
    width: 50%; }
    
   /***************************
     Calc
   ****************************/
   .calc-wrapper {
    position: relative;
    display: inline-block; }
    .calc-wrapper:before {
      content: "";
      display: block;
      width: 603px;
      height: 682px;
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%); }
    
   .calc {
    border-radius: 12px;
    background-color: #f2f2f2;
    width: 350px;
    height: 500px;
    box-shadow: 0px 25px 35px 0 rgba(0, 0, 0, 0.4);
    position: relative;
    padding: 50px 25px 0; }
    
   .calc__display {
    border-radius: 6px;
    background-color: #202020;
    box-shadow: 0px 2px 0px 0px rgba(255, 255, 255, 0.004), inset 0px 1px 3px 0px rgba(23, 16, 25, 0.45);
    width: 100%;
    height: 86px;
    margin-bottom: 40px; }
    
   .calc__display-input {
    width: 100%;
    height: 90%;
    line-height: 86px;
    font-size: 50px;
    font-family: 'digital-7', serif;
    background: transparent;
    border: 0 none;
    color: #fff;
    text-align: right;
    padding: 0 15px;
    outline: none !important; }
    .calc__display-input::-webkit-input-placeholder {
      color: #2c2c2c; }
    
   .calc__table {
    width: 10%; }
    
   .calc__buttons-row td {
    border-left: 15px solid transparent;
    border-bottom: 15px solid transparent;
    vertical-align: top; }
    .calc__buttons-row td:first-child {
      border-left: 0 none; }

  /***************************
    Btns
  ****************************/
   .btn{
    width: 50px;
    height: 40px;
    background-color: #f4f4f4;
    border: 1px solid #eaeaea;
    font-size: 25px;
    color: #666666;
    text-transform: uppercase;
    text-align: center;
    text-decoration: none;
    border-radius: 6px; 
    padding: 0;
    cursor: pointer;
    display: block;
    transition: .3s;
    outline: none !important;}
    
    .btn:hover{
      background: #669e929e;
      color:#ffffff;
    }

    .btn_hover_blue:hover{
    background-color: #52b3fb;  
    color: #f2f2f2;}

    .btn_hover_red:hover{
    background-color: #d83e3e;  
    color: #f2f2f2;}

    .btn_long{
      width: 100%;}

    .btn_tall{
      height: 120px;
      line-height: 190px;}
    
   /***************************
     Title
   ****************************/
   .page__right {
    color: #fff; }
    
   .title {
    font-size: 55px;
    font-weight: 100;
    margin-bottom: 40px; }
    
   .about__btn-link {
    border: 1px solid #ededed;
    border-radius: 24px;
    background-color: #fdfdfd;
    box-shadow: 0px 2px 2px 0px rgba(7, 114, 172, 0.75);
    height: 52px;
    display: inline-block;
    line-height: 52px;
    padding: 0 25px;
    text-decoration: none;
    font-size: 24px;
    color: #0790ec; }