* {
    box-sizing: border-box;
}

.chat_window {
    position: absolute;
    /*width: calc(100% - 20px);*/
    max-width: 100%;
    height: 100%;
    width: 100%;
    border-radius: 10px;
    background-color: #fff;
    left: 50%;
    top: 50%;
    transform: translateX(-50%) translateY(-50%);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    background-color: #f8f8f8;
    overflow: hidden;
}

.top_menu {
    background-color: #fff;
    width: 100%;
    padding: 20px 0 15px;
    box-shadow: 0 1px 30px rgba(0, 0, 0, 0.1);
}

    .top_menu .buttons {
        margin: -1px 0 0 3px;
        position: absolute;
    }

    .top_menu .avatar {
        margin: -15px 0 0 25px;
        width: 55px;
        height: 55px;
        border-radius: 50%;
        display: inline-block;
        background-color: #f5886e;
        float: left;
    }

    .top_menu .title {
        text-align: center;
        color: #bcbdc0;
        font-size: 20px;
    }

.messages {
    position: relative;
    list-style: none;
    padding: 20px 10px 0 10px;
    margin: 0;
    height: 100%;
    overflow: scroll;
}

    .messages .message {
        clear: both;
        overflow: hidden;
        margin-bottom: 20px;
        transition: all 0.5s linear;
        opacity: 0;
    }

        .messages .message.left .avatar {
            background-color: #f5886e;
            float: left;
        }

        .messages .message.left .text_wrapper {
            background-color: #ffe6cb;
            margin-left: 20px;
        }

            .messages .message.left .text_wrapper::after, .messages .message.left .text_wrapper::before {
                right: 100%;
                border-right-color: #ffe6cb;
            }

        .messages .message.left .text {
            color: #c48843;
        }

        .messages .message.right .avatar {
            background-color: #fdbf68;
            float: right;
        }

        .messages .message.right .text_wrapper {
            background-color: #c7eafc;
            margin-right: 20px;
            float: right;
        }

            .messages .message.right .text_wrapper::after, .messages .message.right .text_wrapper::before {
                left: 100%;
                border-left-color: #c7eafc;
            }

        .messages .message.right .text {
            color: #45829b;
        }

        .messages .message.appeared {
            opacity: 1;
        }

        .messages .message .avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: inline-block;
        }

        .messages .message .text_wrapper {
            display: inline-block;
            padding: 20px;
            border-radius: 6px;
            width: calc(100% - 85px);
            min-width: 100px;
            position: relative;
        }

            .messages .message .text_wrapper::after, .messages .message .text_wrapper:before {
                top: 18px;
                border: solid transparent;
                content: " ";
                height: 0;
                width: 0;
                position: absolute;
                pointer-events: none;
            }

            .messages .message .text_wrapper::after {
                border-width: 13px;
                margin-top: 0px;
            }

            .messages .message .text_wrapper::before {
                border-width: 15px;
                margin-top: -2px;
            }

            .messages .message .text_wrapper .text {
                font-size: 18px;
                font-weight: 300;
            }

.bottom_wrapper {
    position: relative;
    width: 100%;
    background-color: #fff;
    padding: 20px 20px;
    position: absolute;
    bottom: 0;
}

    .bottom_wrapper .message_input_wrapper {
        display: inline-block;
        height: 50px;
        border-radius: 25px;
        border: 1px solid #bcbdc0;
        width: calc(100% - 160px);
        position: relative;
        padding: 0 20px;
    }

        .bottom_wrapper .message_input_wrapper .message_input {
            border: none;
            height: 100%;
            box-sizing: border-box;
            width: calc(100% - 40px);
            position: absolute;
            outline-width: 0;
            color: gray;
        }

    .bottom_wrapper .send_message {
        width: 140px;
        height: 50px;
        display: inline-block;
        border-radius: 50px;
        background-color: #a3d063;
        border: 2px solid #a3d063;
        color: #fff;
        cursor: pointer;
        transition: all 0.2s linear;
        text-align: center;
        float: right;
    }

        .bottom_wrapper .send_message:hover {
            color: #a3d063;
            background-color: #fff;
        }

        .bottom_wrapper .send_message .text {
            font-size: 18px;
            font-weight: 300;
            display: inline-block;
            line-height: 48px;
        }

.message_template {
    display: none;
}