hladké rolovanie css
html {
scroll-behavior: smooth;
}
/* No support in IE, or Safari
You can use this JS polyfill for those */
http://iamdustan.com/smoothscroll/
css bez pretečenia
div.ex1 {
overflow: scroll;
}
div.ex2 {
overflow: hidden;
}
div.ex3 {
overflow: auto;
}
div.ex4 {
overflow: visible;
}