html,
body {
    padding: 0;
    margin: 0;
    height: 100%;
    width: 100%;
    color: #424242;
    line-height: 1.6;
    background-color: #eec0c6;
    background-image: linear-gradient(315deg, #eec0c6 0%, #7ee8fa 74%);
}

div {
    background: white;
}

form {
    position: absolute;
    width: 50%;
    left: 50%;
    top: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    padding: 20px;
    border-radius: 10px;
    background: white;
}

input:not([type="checkbox"]),
button {
    width: 100%;
}

@media only screen and (max-width: 700px) {
    form {
        width: calc(100% - 20%);
    }
}