sources/src/page/main.css

@import url('https://fonts.googleapis.com/css2?family=Raleway&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');

a {
    font-size: 3.6rem;
    text-decoration: none;
    color: #26110C;
    font-family: 'Raleway', sans-serif;
}

a:hover {
    color: #732727;
    text-decoration: underline;
}

body {
    background-color: #F2A76650;
    margin: 0;
    /*#D9B9A7;*/
}

br {
    margin-bottom: 1.8rem;
}

div.content_block {
    display: flex;
    flex-direction: column-reverse;
    flex-wrap: wrap;
    flex-basis: 100%;
    flex: 1;
    width: 100%;
}

div.main_block {
    width: max(50%, 350px);
    max-width: min(100%, 800px);
    margin: 0 auto;
}

div.selection_item {
    min-width: 40%;
    padding: 0.5rem 1rem;
}

div.title_block {
    margin: 4rem 0;
}

h1 {
    font-family: 'Raleway', sans-serif;
    font-size: 4.8rem;
    padding-left: 1rem;
    margin: 0;
}

h2 {
    font-family: 'Raleway', sans-serif;
    font-size: 4rem;
}

h3 {
    font-family: 'Open Sans', sans-serif;
    font-size: 3.2rem;
}

h4 {
    font-family: 'Open Sans', sans-serif;
    font-size: 2.4rem;
}

hr {
    border: 0;
    border-bottom: dashed;
}

html {
    font-size: 62.5%;
    margin: 0;
}

img {
    padding: 1.5rem 0;
    width: 100%;
}

p {
    font-family: 'Raleway', sans-serif;
    font-size: 2.8rem;
}

select {

    /* styling */
    background-color: #F2A76652;
    border: thin solid #F23030;
    border-radius: 4px;
    display: block;
    font: inherit;
    font-size: 2.0rem;
    line-height: 1.5em;
    padding: 0.5em 3.5em 0.5em 1em;

    /* reset */

    margin: 0 auto;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-appearance: none;
    -moz-appearance: none;
}

select.select-css {
    background-image:
        linear-gradient(45deg, transparent 50%, #260101 0%),
        linear-gradient(135deg, #260101 50%, transparent 0%);
    background-position:
        calc(100% - 21px) calc(1em + 2px),
        calc(100% - 13px) calc(1em + 2px);
    background-size:
        8px 8px, 8px 8px, 2.5em 2.5em;
    background-repeat: no-repeat;
}