style.css

@font-face {
  font-family: Roboto;
  src: url(Roboto-Light.ttf);
}

body {
    background-color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ai {
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: solid #00a;
    min-width: 600px;
    max-width: 1000px;
    margin: 20px;
}

.checkbox {
    color: #fff;
    background-color: #00a;
    font-family: Roboto;
    text-align: center;
    font-size: 150%;
    padding: 10px 0px;
    margin: 10px 0px;
    width: 600px;
    border: solid #00a;
}
.checkbox:hover {
    color: #00a;
    background-color: #fff;
}

#neuralnetwork {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
}

h1 {
    color: #00a;
    font-family: Roboto;
    text-align: center;
    font-size: 300%;
}

#text {
    font-size: 180%;
}

h2 {
    color: #00a;
    font-family: Roboto;
    text-align: center;
    font-size: 180%;
}

p {
    color: #00a;
    font-family: Roboto;
    text-align: center;
    font-size: 140%;
    padding: 0px 50px
}

.imgTxt {
    width: 280px;
    padding: 10px;
    font-size: 100%;
    color: #fff;
    background-color: #00a;
    border: 2px solid #fff;
}

.footer {
    align-self: stretch;
    padding: 20px 60px;
    text-align: right;
    color: #fff;
    background-color: #000;
    font-family: Roboto;
    font-size: 110%;
}