body {
    background-color: #f2f2f2;
    font-family: 'Roboto', sans-serif;
}
form {
    border-radius: 5px;
    background-color: #8d8c8c;
    margin: 20px;
    padding: 20px;
}
input {
    border-radius: 4px;
    box-sizing: border-box;
    display: block;   
    margin: 8px 0;
    padding: 12px 20px;
    width: 100%;
}
input [type=submit] {    
    border-color: blueviolet;
    border-radius: 4px;
    box-sizing: border-box;
    margin: 8px 0;
    padding: 12px 20px;
    width: 100%;
}
select {
    border-radius: 4px;
    box-sizing: border-box;
    margin: 8px 0;
    padding: 12px 20px;
    width: 100%;
}
textarea {
    border-radius: 4px;
    box-sizing: border-box;
    margin: 8px 0;
    padding: 12px 20px;
    width: 100%;
}