stylle.css

body
{
    font-family: Calibri;
    margin: 0;
    width: 100%;
    height: 100%;
}

input
{
 width: 50px;
height: 50px;
font-size: 30px;
    text-align: center;
   border: 2px solid #000; 
}

main
h2
{
    text-align: center;
}

form
{
    display: flex;
    justify-content: center;
    padding-top: 100px
}
.row
{
    flex-direction: column;
    align-items: center;
}


#test
{
    border: 2px solid #000;
    width: 200px;
    font-size: 25px;
    background-color: aliceblue;
    clear: both;
}

#plec
{
    width: 200px;
    border: 2px solid #000;
    font-size: 25px;
    background-color: aliceblue;
    float: left;
}
button
{
    border: 2px solid #000;
    width: 100px;
    height: 40px;
    float: left;
}
button:hover
{
    border: 4px solid #000;
   
    background-color: #6d6d6d;
}
#ref
{
    width: 100px;
    height: 40px;  
    font-size: 14px;
    margin-top: 10px
}
#ref:hover
{
  border: 4px solid #000;  
    background-color: #6d6d6d;
}

.logo
{
    width: 100%;
    height: 100px;
    background-color: #000;
    text-align: center;
    
}
header
h1
{
    padding-top: 30px;
    color: #fff;
    font-size: 40px;
    text-align: center;
}

footer
{
    clear: both;
    margin-top: 10%;
    text-align: center;
    background-color: #000;
    color: #fff;
    padding-top: 3px;
    padding-bottom: 3px;
}