Can you check this tour for any mistakes or glitches please

[flowersgone]

I noticed dotted outlines when I click on links on the page and, more clearly, when I click on the links and hit the back button.

Your file style.css has a rule

a, a:link, a:active, a:visited {
    color: silver;
    font-family: "Comic Sans MS";
    text-decoration: none;
}

which you might enhance to

a, a:link, a:active, a:visited {
    color: silver;
    font-family: "Comic Sans MS";
    text-decoration: none;
    outline: 0;
}

to fix the problem.

fg