body {
    font-family: Arial, sans-serif;
    background-color: #f0f8ff;
    margin: 0;
    padding: 0;
}

iframe {
    width: 100%;
    height: 315px;
}

.header, .content, .footer {
    display: flex;
    justify-content: center;
    flex-wrap: wrap-reverse;
    width: 100%;
}

.media {
    max-width: 100%;
    outline: 3px solid #333;
    border-radius: 5px;
}

.img-profile {
    max-width: 270px;
}

.browser {
    max-width: 300px;
    min-height: 200px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin: 10px;
    display: flex;
    flex-direction: column;
}

.header .browser, .footer .browser {
    max-width: 100%;
    width: 620px;
    text-align: center;
}

.browser-header {
    height: 30px;
    background-color: #333;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    display: flex;
    align-items: center;
    padding: 0 10px;
}

.browser-header .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 5px;
}

.browser-header .dot:nth-child(1) {
    background-color: #ff5f56;
}

.browser-header .dot:nth-child(2) {
    background-color: #ffbd2e;
}

.browser-header .dot:nth-child(3) {
    background-color: #28c940;
}

.browser-content {
    flex: 1;
    padding: 15px;
    color: #333;
    font-size: 16px;
}

.btn {
    padding: 0.8rem;
    font-size: 2rem;
    display: block;
    background: linear-gradient(135deg, #8b52ff, #5ddfe6);
    color: #001e47;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-decoration: none;
    margin: 2rem 10px;
    text-align: center;
}

.btn:hover {
    background: linear-gradient(135deg, #5ddfe6, #8b52ff);
}

@media (max-width: 650px) {
    .browser, .btn {
        max-width: 100%;
    }
}