.kentekenhold {
    background-color: #f5ce00;
    border: 1px solid black;
    border-radius: 5px;
    padding: 2px;
    position: relative;
    display: inline-flex;
}
.kentekenhold::before {
    content: " ";
    width: 20px;
    height: 40px;
    position: relative;
    background-color: rgb(38 98 162 / var(--tw-bg-opacity, 1));
    background-repeat: no-repeat;
    background-position: center;
    background-image: url(../images/plates/kenteken-eu-nl.svg);
    background-size: 60% auto;
}
#enterkentekenid{
    text-transform: uppercase;
    font-family: kenteken, monospace;
    font-size: 30px;
    width: 180px;
    text-align: center;
    background-color: transparent;
    border: none;
    height: 40px;
    color: black;
} 
#enterkentekenid:focus {
    outline: none;
    box-shadow: none;
}