style.css

@import url('https://fonts.googleapis.com/css?family=Karla:400,700&display=swap');

:root {
    --textColor: black;
    --font: 'Karla', sans-serif;
}

html {
    /*FONT:*/   
    font-family: var(--font);
    color: var(--textColor);
    font-size: 18px; 
    font-weight: 400;

    /*BACKGROUND:*/
    background: rgba(195, 53, 77, 0.1);
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

body {
    margin: 10px auto; /*auto - center the linktree*/
}

img {
    width: 130px;
    height: 130px;
    display: block;
    margin: 20px auto;
    border-radius: 50%; /*round image*/
}

#userName {
    font-weight: 700; /*bold*/
}

#description {
    margin: 20px auto;
    padding: 10px 0; 
    max-width: 450px;
}

.subline {
	text-transform: uppercase;
	font-weight: bold;
	margin-top: 30px;
}

#risk-banner {
	background: url(images/background.png);
	color: white;
	display: block;
    margin: 10px;
    padding: 15px 10px; 
    border-radius: 5px;
    max-width: 500px;
}

#risk-banner > * {
	margin: 10px 0;
}

#risk-banner form {
	width: 100%;
	display: block;
	margin: 20px 0 10px 0;
}

#risk-banner input {
	border:none;
	padding: 15px 10px;
	font-size: 16px; 
	width: 75%;
	border-top-left-radius: 5px;
	border-bottom-left-radius: 5px;
	border-top-right-radius: 0px;
	border-bottom-right-radius: 0px;
	font-family: var(--font);
}

#risk-banner button {
	border:none;
	padding: 15px 10px;
	font-size: 16px; 
	width: 15%;
	border-top-left-radius: 0px;
	border-bottom-left-radius: 0px;
	border-top-right-radius: 5px;
	border-bottom-right-radius: 5px;
	font-family: var(--font);
	background: var(--textColor);
	color: white;
}

.shadow {
	box-shadow: 5px 5px 0px 0px rgba(195, 53, 77, 0.1);
}

main {
    width: auto;
    max-width: 500px;
    margin: 15px auto;
}

/*LINKS*/
a {
    /*LINKS TEXT*/
    color: var(--textColor);
    text-decoration: none;
    text-align: center;

    /*LINKS BORDER:*/
    border: 2px solid var(--textColor);
    border-radius: 5px;

    display: block; /*each link takes a whole line*/
    margin: 10px;
    padding: 10px; 
    box-shadow: 5px 5px 0px 0px rgba(195, 53, 77, 0.1);
}