style.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: #21469e;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    background: #fff;
    display: flex;
    flex-direction: column;
    padding: 25px;
    border-radius: 5px;
    width: 80%;
    max-width: 400px;
}

.container h3 {
    font-size: 26px;
    font-weight: 700;
    text-transform: capitalize;
    margin-bottom: 15px;
    text-align: center;
}

.container label {
    margin-bottom: 5px;
    text-transform: capitalize;
    font-size: 16px;
    font-weight: 400;
}

.container textarea {
    resize: none;
    width: 100%;
    height: 130px;
    outline: 0;
    border: 1px solid #000;
    border-radius: 3px;
    font-size: 16px;
    padding: 5px;
    margin-bottom: 15px;
    text-transform: capitalize;
}

.container select {
    outline: 0;
    padding-top: 10px;
    padding-bottom: 10px;
    padding-left: 5px;
    width: 100%;
    border: 1px solid #000;
    border-radius: 3px;
    margin-bottom: 20px;
    font-size: 15px;
    text-transform: capitalize;
}

button.Btn {
    background: #21469e;
    color: #fff;
    outline: 0;
    border: 0;
    padding: 10px 0px;
    font-size: 15px;
    text-transform: capitalize;
    border-radius: 3px;
    cursor: pointer;
}