body {
    font-family: Arial, sans-serif;
    min-height: 100vh;
    background: linear-gradient(180deg, #000000 55%, #ff0000 100%)
}

.header {
    background-color: #333;
    color: #fff;
    padding: 20px;
    width: 100vw;
    height: 128px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-align: center;
    min-height: 100px;
    margin-right: auto;
}

.header .logo_img {
    max-width: 100%;
    height: auto;
    display: block;
}

input {
    margin: 5px;
    padding: 5px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

input:focus {
    outline: none;
    border-color: #ff0000;
}

.holder {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #ffffff;
}

p {
    margin: 0;
    padding: 5px;
    background-color: #ffffff;
    border: 1px solid #ddd;
}