style.css

body {
    background-color: black;
    font-family: 'Handlee', cursive;
}

p {
    margin: 1px;
    font-size: 21px;
}

h2 {
    font-size: 29px;
}

input {
    border: 0px;
    border-bottom: 1px gray solid;
    margin-bottom: 5px;
    width: 90%;
    margin: 5px 23px;
    font-size: 20px;
    font-style: italic;
    font-family: 'Handlee', cursive;
}

input::placeholder {
    color: lightpink;
}

.flexboxContainers {
    display: flex;
    margin-bottom: 15px;
}

.flexboxContainers div {
    width: 50%;
}

#postcardContainer {
    width: 555px;
    height: 355px;
    background-color: white;
    padding: 20px;
    margin: 150px auto;
}

#topRightTextContainer {
    text-align: right;
}

#bottomContainer {
    text-align: center;
}

#submitButton {
    text-align: center;
    width: 30%;
    background-color: lightgray;
    border-radius: 10px;    
    padding: 5px;
    font-style: normal;
}