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

html, body { height: 100%; padding: 0; margin: 0; scroll-behavior: smooth; font-family: "Sintony", sans-serif; 
    font-weight: 300; scrollbar-width: thin; scrollbar-color:rgb(168, 28, 28); }

.header {width:100%; height:auto; border:solid 1px black;
    display:flex; justify-content: center; align-items: center; position: absolute; top:0;}