html, body {
    background-image: url('download.jpg');
    margin: 0;
    padding: 0;
    color: white;
}

a:hover {
    text-decoration: underline;
}

a {
    text-decoration: none;
    font-weight: bold;
    font-family: 'Calibri';
    line-height: 200%;
}

a.button {
    width: fit-content;
    margin: 0 auto;
    color: white;
    padding: 10px 20px;
    border-radius: 4px;
    animation: colorChange 8s infinite;
    position: relative;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}

a.button:hover {
    animation-play-state: paused;
    box-shadow: 0 0 20px 0 rgba(255, 255, 255, 0.8);
}

@keyframes colorChange {
    0% { background-color: #dc3545; }
    25% { background-color: #c82333; }
    50% { background-color: #007bff; }
    75% { background-color: #28a745; }
    100% { background-color: #ffc107; }
}

h1 img {
    width: 10em;
    align-items: center;
}

.languageBlock {
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    text-align: left;
    padding-left: 10px;
}

div img {
    width: 1em;
    vertical-align: text-bottom;
    margin-right: 0.2em;
    align-items: center;
}

select {
    margin: 2em 0;
    font-size: 1em;
    font-family: 'Calibri';
    align-items: center;
}

h1 {
    text-align: center;
}

.centered-section {
    display: flex;
    justify-content: center;
    align-items: center;
}

.centered-section h3 {
    margin-left: 10px;
    text-align: left;
}

h3 {
    font-family: 'Calibri';
    font-size: 1.3em;
}

.centered-section h3 {
    margin-right: 10px;
}

.centered-section img {
    width: 2em;
}

.button-container {
    text-align: center;
    margin-top: 20px;
}