rmcg.dev/FrontendMentor/huddle-landing-page-with-single-introductory-section-master/css/style.css

@import url('https://fonts.googleapis.com/css2?family=Open+Sans&family=Poppins:wght@400;700&display=swap');

:root {
    font-size: 16px;
    --site-color: hsl(257, 40%, 49%);
}

body {
    background-color: var(--site-color);
    background-image: url("../images/bg-desktop.svg");
    background-repeat: no-repeat;
    /*background-size: contain; */
    
    color: white;
    margin: 0;

    font-family: 'Open Sans', sans-serif;
}

h1 {
    font-family: 'Poppins', sans-serif;
    font-weight: 400; /* 400 & 40 are very close*/
    font-size: 40px;
}

.logo {
    width: 215px;
    margin: 3.75% 4.86% 0rem; /* 3.75% 4.375rem 0rem*/
}

.middleSection {
    display: flex;
    margin: 5.0625rem 0rem 0rem 4.55rem;
}

.siteBlurb {
    margin: 1.0625rem 4rem 2rem 3.325rem;

    /* line-height: 2rem;
    font-weight: 400; */
}

.siteBlurb h1 {
    margin-right: 2em;
    margin-bottom: 0;
}

.siteBlurb p {
    margin-right: 1.5rem;
    margin-bottom: 1.5625rem;
    line-height: 1.7rem;
    font-size: 18px;
    font-weight: 400;
}

.registerButton {
    background-color: white;
    color: var(--site-color);
    font-size: 19px;
    border: none;
    padding: 17px 64px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    /* margin: 4px 2px; */
    cursor: pointer;
    border-radius: 32px;
    box-shadow: 3px 3px 10px 1px rgba(0, 0, 0, 0.4); /* 10px 5px 10px*/
}

.socialButtonsSection {
    display: block;
    text-align: right;
    margin-right: 5.1875rem;
}

.socialButtonsSection i {
    padding: 0.5rem;
    margin-left: 0.5rem;
    margin-top: 0.9375rem;
    margin-right: 0;
}

.circleIcon {
    margin: 0;
    color: white;
    background: transparent;
    border: 1.75px solid #fff;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    text-align: center;
    line-height: 20px;
    vertical-align: middle;
    font-size: 19px;
}

.circleIcon:hover {
    color: blue;
}

.attribution { font-size: 11px; text-align: center; }
.attribution a { color: hsl(228, 45%, 44%); }

/* Formating for Mobile devices. Sample to match is 375z800 */
@media screen and (max-width: 500px) {

    body {
        background-image: url("../images/bg-mobile.svg");
        background-repeat: no-repeat;
        /* background-size: contain; */
        
        color: white;
        margin: 0;
        padding: 0;
    }

    .logo {
        width: 128px;
        margin: 8.5325% 35px 0rem; /* 3.75% 4.375rem 0rem*/
    }

    .illustrations {
        margin: 3.5rem 2.3125rem 1rem;
    }

    .illustration {
        max-width: 100%;
        max-height: 100vh;
        height: auto;
    }

    .middleSection {
        margin: 0;
        display: flex;
        flex-direction: column;

    }
    
    .siteBlurb {
        margin:0;
        margin-top: 0.9375rem;
        text-align: center;
    
        /* line-height: 2rem;
        font-weight: 400; */
    }
    
    .siteBlurb h1 {
        margin: 1.625rem 2rem 0rem 2rem;
        font-weight: 400;
        font-size: 1.5rem;
    }
    
    .siteBlurb p {
        margin:0.75rem 2.25rem;
        font-size: 1rem;
        line-height: 1.5rem;
    }
    
    .registerButton {
        margin-top: 0.875rem;
        background-color: white;
        color: var(--site-color);
        font-size: 13px;
        letter-spacing: 1px;
        border: none;
        padding: 12px 72px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        /* margin: 4px 2px; */
        cursor: pointer;
        border-radius: 32px;
        box-shadow: 3px 3px 10px 1px rgba(0, 0, 0, 0.4); /* 10px 5px 10px*/
    }
    
    .socialButtonsSection {
        /* display: block; */
        text-align: center;
        margin:0;
        margin-top: 3rem;
    }
    
    .socialButtonsSection i {
        /* padding: 0.5rem; */
        margin-left: 0.375rem;
        margin-top: 0.9375rem;
        margin-right: 0; 
    }
    
    .circleIcon {
        margin: 0;
        padding: 0;
        color: white;
        background: transparent;
        border: 1.5px solid #fff;
        width: 9px;
        height: 9px;
        border-radius: 50%;
        text-align: center;
        line-height: 11px;
        /* vertical-align: middle; */
        align-content: center;
        font-size: 14px;
    }

    .attribution { margin: 10px 0;}
}