style.css

body {
    font-family: Garamond;
}

h1 {
    color: black;
    margin-bottom: 0;
    margin-top: 0;
    text-align: center;
    font-size: 40px;
}

h3 {
    color: black;
    font-size: 20px;
    margin-top: 3px;
    text-align: center;
}
.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
}

.ml-auto{
    margin-left:auto !important;
}
.mr-auto{
    margin-right:auto !important;
}

.col-md-10,.col-md-8,.col-md-4{
    position: relative;
    width: 100%;
    min-height: 1px;
    padding-right: 15px;
    padding-left: 15px;
}
.col-md-8{flex:0 0 66.666667%;max-width:66.666667%}
.col-md-4{flex:0 0 33.333333%;max-width:33.333333%}
.col-md-10{flex:0 0 83.333333%;max-width:83.333333%}

.form-control {
    background: no-repeat bottom,50% calc(100% - 1px);
    background-image: none, none;
    background-size: auto, auto;
    background-size: 0 100%,100% 100%;
    border: 0;
    height: 36px;
    transition: background 0s ease-out;
    padding-left: 0;
    padding-right: 0;
    border-radius: 0;
    font-size: 14px;
}
.form-control {
    display: block;
    width: 100%;
    padding: .4375rem 0;
    padding-right: 0px;
    padding-left: 0px;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    border:none;
    background-color: transparent;
    background-clip: padding-box;
    border-bottom: 1px solid #d2d2d2;
    box-shadow: none;
    transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}
.btn {
    float: left;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: .46875rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: .25rem;
    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}
.btn-warning {
    color: #fff;
    background-color: #f08f00;
    border-color: #c27400;
}
.btn.btn-warning:active, .btn.btn-warning:focus, .btn.btn-warning:hover {
    box-shadow: 0 14px 26px -12px rgba(255,152,0,.42),0 4px 23px 0 rgba(0,0,0,.12),0 8px 10px -5px rgba(255,152,0,.2);
}

button, input, optgroup, select, textarea {
    margin: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    overflow:visible;
}
#chatbox {
    background-color: cyan;
    margin-left: auto;
    margin-right: auto;
    width: 80%;
    min-height: 70px;
    margin-top: 60px;
}

#userInput {
    margin-left: auto;
    margin-right: auto;
    width: 40%;
    margin-top: 60px;
}

#textInput {
    width: 87%;
    border: none;
    border-bottom: 3px solid #009688;
    font-family: monospace;
    font-size: 17px;
}

#buttonInput {
    padding: 3px;
    font-family: monospace;
    font-size: 17px;
}

.userText {
    color: white;
    font-family: monospace;
    font-size: 17px;
    text-align: right !important;
    line-height: 30px;
    margin: 5px;
}

.userText span {
    background-color: #009688;
    padding: 10px;
    border-radius: 2px;
}

.botText {
    color: white;
    font-family: monospace;
    font-size: 17px;
    text-align: left;
    line-height: 30px;
    margin: 5px;
}

.botText span {
    background-color: #ef5350;
    padding: 10px;
    border-radius: 2px;
}

#tidbit {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 300px;
}