contato.css

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}
.container {
    min-height: 100vh;
    background: #08071d;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url(gtr.png) no-repeat center center/cover;
}
.container form {
    width: 670px;
    height: 400px;
    display: flex;
    justify-content: center;
    box-shadow: 20px 20px 50px rgba(0,0,0,0.5);
    border-radius: 15px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    flex-wrap: wrap;
}
.container form h1 {
    color: #fff;
    font-size: 500;
    margin-top: 20px;
    width: 500px;
    text-align: center;
}
.container form input {
    width: 290px;
    height: 40px;
    padding-left: 10px;
    outline: none;
    border: none;
    font-size: 15px;
    margin-bottom: 10px;
    background: none;
    border-bottom: 2px solid #fff;
}
.container form input::placeholder {
    color: #ddd;
}
.container form #lastName,
.container form #mobile {
    margin-left: 20px;
}
.container form h4 {
    color: #fff;
    font-weight: 300;
    width: 600px;
    margin-top: 20px;
}
.container form textarea {
    background: none;
    border: none;
    border-bottom: 2px solid #fff;
    color: #fff;
    font-weight: 200;
    font-size: 15px;
    padding: 10px;
    outline: none;
    min-width: 600px;
    max-width: 600px;
    min-height: 80px;
    max-height: 80px;
}
textarea::-webkit-scrollbar {
    width: 1em;
}
textarea::-webkit-scrollbar-thumb {
    background-color: rgba(194,194,194,0.713);
}
.container form #button {
    border: none;
    background: #fff;
    border-radius: 5px;
    margin-top: 20px;
    font-weight: 600;
    font-size: 20px;
    color: #333;
    width: 100px;
    padding: 0;
    margin-right: 500px;
    margin-bottom: 30px;
    transition: 0.3s;
}
.container form #button:hover {
    opacity: 0.7;
}
        @media only screen and (max-width: 600px) {
            .container form {
                width: 90%;
                max-width: 300px;
            }
        }