body {
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    margin: 0px;
    padding: 0px;
}

.container {
    max-width: 1024px;
    margin: 0 auto;
    text-align: center;
}

h1 {
    font-size: 28px;
    margin-top: 20px;
    margin-bottom: 20px;
}

h2 {
    font-size: 18px;
    margin-bottom: 20px;
}

select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100' height='100' fill='%238C98F2'><polygon points='0,0 100,0 50,50'/></svg>") no-repeat;
    background-size: 12px;
    background-position: calc(100% - 10px) center;
    background-repeat: no-repeat;
    background-color: #efefef;
    color:black;
    font-size: 18px;
    padding: 5px;
    margin-bottom: 20px;
}

iframe {
    border: 1px solid #ccc;
}