@font-face {
    font-family: myFont;
    src: url(./fonts/digital-7_mono-webfont.woff);
  }
*{
    margin: 0;
    padding: 0;
}
body{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    background-color: #d3d4cf;
}
.body{
    background-color: #000;
    width:400px;
    box-shadow: 0px 10px 10px -5px black;
  margin:20px;
}

.first-table{
    width:400px;
    height: 500px;
    background-color: #000;
    color: #fff;
    font-size: 16px;
    text-align: center;
    font-weight: 500;
    font-family: Arial, Helvetica, sans-serif;
    border: 1px solid #474867;
    outline-color: #fff;
    padding:2px;
}

.first-table tr td{
    background-color: #4d4d4d;
    padding: 10px;
}
.first-table tr td:hover{
    background-color: #8b8686;
    padding: 10px;
    cursor: pointer;
    
}

.first-table button{
    border: none;

}

.first-table .reset{
    background-color: #bb4040;
}
.first-table .reset:hover{
    background-color: rgb(204, 157, 4);
}
.first-table .operation{
    background-color: #666666;
    padding: 10px;

}
.first-table .eq{
    background-color: #004566;
}
.first-table .eq:hover{
    background-color: rgb(204, 157, 4);
}
.first-table .black{
    background-color: #000;
    padding-right:10px;
    text-align: right;
    height: 20%;
    
}

#netice1{
    font-family: myFont;
    font-size: 34px;
}

#netice{
    font-family: myFont;
    font-size: 34px;
}

.first-table .black:hover{
    background-color: #000;
    cursor:default
}


.first-table span{
color:#fff;
font-size: 28px;
  text-align: center;
    font-weight: 600;
    font-family: Arial, Helvetica, sans-serif;
}

.first-table #netice1{
    font-size: 18px;
    color:#dba938;
}