form.css

#chat_form input {
    margin: 5px;
}
header {
    font-size: 3em;
    font-weight: bold;
    color: whitesmoke;
}
#chat_form {
    margin-top: 2px;
}
#chat_form label {
    text-align: center;
}
#chat_box {
    padding: 20px 20px;
    width: 90%;
}
.btn {
    background-color: royalblue;
    padding: 10px 20px;
}
.btn:hover {
    cursor: pointer;
}
#user_comment {
    padding: 5px 10px;
    width: 90%;
}
#user_name {
    padding: 5px 10px;
    width: 80%;
}
#last_display {
    padding: 5px 10px;
}
body {
    background-color: teal;
}
label {
    color: whitesmoke;
    font-family: sans-serif;
    font-size: 15px;
}
form {
    background-color: darkslategrey;
    padding: 25px;
    border: none;
    border-radius: 20px;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    margin-left: 70px;
    margin-right: 70px;
}
input {
    border-radius: 5px;
    border: none;
    margin-bottom: 5px;
}
textarea {
    border-radius: 5px;
    border: none;
    font-family: sans-serif;
}
.container {
    display: flex;
}
.item {
    margin-right: 30px;
    width: 50%;
}