html,
body {
    margin: 0;
}

body {
    background-color: #f1f1f1;
    display: flex;
    justify-content: center;
}

.wrapper {
    width: 1200px;
    display: flex;
    margin: 0 auto;
    background-color: aquamarine;
}

.main {
    display: flex;
    flex-flow: column;
    width: 85%;
}

.menu {
    width: 15%;
    background-color: aqua;
    padding: 10px 20px 0px;
}

.header {
    background-color: rgb(5, 108, 108);
    min-height: 150px;
}

.content {
    background-color: white;
    min-height: 300px;
    padding: 20px;
}

.footer {
    background-color: rgb(64, 6, 119);
    color: white;
    min-height: 150px;
    text-align: center;
}

<style>form {
    width: 90%;
    max-width: 500px;
    margin: 20px auto;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

input,
textarea {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    margin-top: 10px;
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    background-color: #2c7be5;
    color: white;
    cursor: pointer;
}

button[type="reset"] {
    background-color: #6c757d;
}

button:hover {
    opacity: 0.9;
}

</style>