@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');


* {
    margin:0;
    padding:0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 100px;
    background: red;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index:99;
}

.Title{
    font-size: 2.7em;
    color: white;
}

.TopBar a {
    position: relative;
    font-size: 1.1em;
    color: white;
    text-decoration: none;
    font-weight: 500;
    margin-left: 40px;
}

.TopBar a::after {
    content: '';
    position:absolute;
    left: 0;
    bottom: -6px;
    width: 100%;
    height: 3px;
    background: white;
    border-radius: 5px;
    transform: scaleX(0);
    transition: transform 0.5s;
}

.TopBar a:hover::after {
    transform: scaleX(1);
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: lightgrey;
}

.Explainer {
    color: black;
    font-size: 1.2em;
}