body {
    margin: 0;
    font-family: sans-serif;
    -ms-overflow-style: scrollbar;
    overflow-style: scrollbar;
    background-color: #DDD;
}

main {
    max-width: 700px;
    margin: auto;
    height: 100vh;
    background-color: white;
    position: relative;
    display: flex;
    flex-direction: column;
}

.chat-box-container {
    margin: 0;
    width: 100%;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 70%;
    background-color: white;
}

.chat-box-header {
    display: block;
    text-align: center;
}

.chat-box {
    margin: 4px 4px 4px 4px;
    border: 2px solid black;
    flex-grow: 1;
    background-color: #FFF;
    overflow-y: scroll;
}

    .chat-box p {
        margin: 0;
        padding: 6px;
        font-size: medium;
    }

.ai-person-container {
    display: block;
    overflow: auto;
}

.ai,
.person {
    overflow: auto;
    margin: 4px;
    border: 2px solid black;
    border-radius: 8px;
    display: inline-block;
}

.ai {
    text-align: left;
    margin-right: 36px;
    border-color: red;
    float: left;
    border-bottom-left-radius: 0px;
}

.person {
    text-align: left;
    margin-left: 36px;
    border-color: blue;
    float: right;
    border-bottom-right-radius: 0px;
}

.ai-date,
.person-date {
    font-size: 10px;
    clear: both;
}

.ai-date {
    float: left;
    margin-left: 6px;
}

.person-date {
    float: right;
    margin-right: 6px;
}

.chat-input-container {
    position: relative;
    height: 60px;
    width: 100%;
    display: flex;
    bottom: 0;
    align-items: center;
    justify-content: center;
    overflow: auto;
    background-color: white;
}

.chat-input {
    height: 40px;
    width: auto;
    display: inline-block;
    flex-grow: 1;
    padding: 2px 2px 2px 2px;
    margin: 0 4px 0 4px;
    font-size: medium;
    border: 2px solid black;
}

    .chat-input:focus {
        outline: 0;
    }

.chat-submit {
    width: 70px;
    height: 47px !important;
    padding: 2px 2px 2px 2px;
    margin-right: 4px;
    border: 2px solid black;
    background-color: #1e048f; /*#69AAFF*/
    font-size: medium;
    color: white;
}

    .chat-submit:hover {
        cursor: pointer;
        background-color: #262feb;
    }

    .chat-submit:focus {
        outline: 0;
    }

    .chat-submit:active {
        transform: translateY(4px);
    }

@media screen and (max-width: 480px) {
    .chat-box p {
        font-size: 30px;
    }

    .chat-input {
        width: 60%;
        float: left;
        font-size: 28px;
    }

    .chat-submit {
        float: right;
    }
}