style.css

a {
    text-decoration: none;
}

body {
    font-family: 'M PLUS 1p', sans-serif;
    background-color: #fcfcfc;
    margin: 0;
}

iframe {
    border: none;
}

.button {
    width: 100%;
    margin: 5px;
    height: 40px;
    box-sizing: border-box;
    padding: 5px;
    background-color: #0d47a1;
    font-size: 16pt;
    color: white;
    border: 0;
    cursor: pointer;
    font-size: 12pt;
}

.button--disable {
    background: #bbbbbb;
    cursor: default;
}

.frame--main {
    display: grid;
    flex-direction: column;
    grid-template-columns: auto 900px auto;
    grid-template-rows: 145px 425px 64px;
    margin-top: 8px;
}

.frame--secondary {
    width: 930px;
    display: block;
    margin: 0 auto;
    height: 100%;
    position: relative;
}

.frame--secondary__return-button {
    font-weight: bold;
    position: absolute;
    width: auto;
    box-sizing: content-box;
    font-size: 11pt;
    right: 25px;
    top: 5px;
    background-color: white;
    color: #0d47a1;
    z-index: 1;
}

.frame--invisible {
    display: none;
}

.window {
    border: 2px solid grey;
    border-radius: 15px;
    padding: 15px;
    background-color: white;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
}

.header {
    margin: 0 0 15px 0;
    width: 100%;
    box-sizing: border-box;
    height: auto;
    margin: 0;
    grid-column-start: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header__title {
    text-align: center;
    margin: 0;
}

.option {
    width: 32%;
    height: auto;
    margin: 10px 0;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.option--multiple{
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.option__title {
    margin: 0;
    text-align: center;
}

.content {
    display: flex;
    grid-column-start: 2;
    grid-column-end: 3;
    grid-row-start: 2;
    width: 100%;
    grid-row-end: 3;
    box-sizing: border-box;
    margin: 5px 0 0 0;
    justify-content: space-between;
}

.option--multiple__window{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    box-sizing: border-box;
}

.footer {
    grid-column-start: 2;
    grid-column-end: 3;
    grid-row-start: 3;
    box-sizing: border-box;
    grid-row-end: 3;
    margin: 0;
    text-align: center;
    padding: 0px;
    height: 68px;
    display: flex;
    justify-content: center;
    align-items: center;
}



/* FOR COMPONENT */

.header__settings{
    display: flex;
    width: 100%;
    justify-content: space-between;
}

.header__settings__label{
    font-weight: normal;
}

.header__settings__component{
    display: flex;
    flex-direction: column;
    text-align: center;
    font-weight: bold;
}

.header__settings__component__field{
    margin: 5px;
    height: 100%;
}

.header__input--function{
    width: 250px;
    padding: 2px;
    height: 100%;
}

.header__input--point{
    width: 50px;
    height: 22px;
    padding: 2px;
    margin-right: 5px;
    height: 100%;
}

.header__input--iteration{
    padding: 2px;
    height: 100%;
}

.button--function{
    font-size: 10pt;
    height: 37px;
    margin: 10px 0 0 0;
}

.button--calculate{
    width: 150px;
    align-self: center;
    font-size: 16pt;
}

.button--propose{
    background-color: #bd8803;
    font-size: 12pt;
    font-weight: bold;
    padding: 8px;
}

.option--results{
    width: 24%;
    height: auto;
    padding: 10px;
    margin: 0 10px 0 0;
    align-items: baseline;
    font-family: 'M PLUS 1p', sans-serif;
    font-size: 11pt;
    box-sizing: content-box;
}

.option--results__measurements{
    font-size: 8pt;
    display: flex;
    justify-content: space-around;
    margin-top: 0;
    width: 100%;
}

.option__title{
    font-weight:bold;
}

.option--results__iteration{
    font-weight: bold;
    display: block;
    margin-top: 5px;
}

.option--plot{
    padding-top: 0;
    width: 65%;
    box-sizing: border-box;
    position: relative;
    height: 400px;
    flex-grow: 1;
    margin: 0;
}

.option--test{
    margin: 0 0 0 10px;
    font-size: 11pt;
    text-align: center;
    width: 120px;
    box-sizing: initial;
}