main.css

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300&display=swap');

*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  font-family: sans-serif;
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}
body {
    margin: 0;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.5;
    color: #212529;
    text-align: left;
    background-color: #fff;
}
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: .5rem;
}
h3 {
    font-size: 1.75rem;
    font-weight: 500;
    line-height: 1.2;
}
small {
    font-size: 80%;
    font-weight: 400;
}
pre {
    font-size: 18px;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: .5px;
}
code {
    font-family: SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;
    font-size: 87.5%;
    color: #e83e8c;
    word-wrap: break-word;
}
kbd {
    background-color: #eee;
    border: 1px solid #b4b4b4;
    border-radius: 3px;
    padding: 2px 4px;
}
.p-3 {
    padding: 1rem;
}
hr {
    margin-top: 1rem;
    margin-bottom: 1rem;
    border: 0;
    border-top: 1px solid rgba(0,0,0,.1);
}
.bg-head {
    background: #f7f7f7;
}
.container {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}
.jumbotron {
    padding: 2rem 1rem;
    margin-bottom: 2rem;
    background-color: #40a744;
    color: #fff;
}
.display-3 {
    font-size: 4rem;
    font-weight: 300;
    line-height: 1.2;
}
.lead, .lead li {
    font-size: 1.25rem;
    font-weight: 300;
}
.text-muted {
    color: #6c757d!important;
}
.code {
    background-color: #5d5d5d;
    color: #fff;
    padding: 15px 0;
    border-left: 10px solid #00BCD4;
    margin-left: 10px;
    overflow: scroll;
}
.code span {
    color: #FF9800;
}


@media screen and (min-width: 576px) {
    .container {
        max-width: 540px;
    }
    .jumbotron {
        padding: 4rem 2rem;
    }
}
@media screen and (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}
@media screen and (min-width: 992px) {
    .container {
        max-width: 920px;
    }
}
@media screen and (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}
@media screen and (max-width: 700px) {
    .display-3 {
        font-size: 3rem;
    }
}