*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root 
{
    --primary-color: black;
    --secondary-color: red;
    --accent-color: gray;
    --accent-color2: white;
}

html
{
    background-color: green;
}

body 
{
    background-color: var(--accent-color);
}

header 
{
    width: 100%;
    height: auto;
}

main 
{
    background-color: black;
}

.section-container 
{
    width: 100%;
    max-width: 950px;
    margin: 0 auto;
}

img 
{
    max-width: 100%;
}

a 
{
    text-decoration: none;
}

ul 
{
    list-style-type: none;
}

.btn
{
    background-color: var(--secondary-color); /* Red */
    border: none;
    border-radius: 8px;
    color: white;
    padding: 15px 32px;
    margin: 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    box-shadow: 0;
}

.btn:hover
{
    box-shadow: 0 2px 4px 0 rgba(255, 255, 255, 0.2), 0 3px 10px 0 rgba(255, 255, 255, 0.19);
}

#developer
{
    background-color: #333333;
    margin: 30px 0;
    padding: 20px;
    font-size: 12px;
}