body {
    background-image: url("bg2.gif");
}
.nav {
    position: sticky;
    top: 0px;
    padding: 10px 0px;
}
ul {
    list-style-type: none;
}
.input{
    background-color: black;
    color: white;
    border-radius: 10px;
    width: 300px;
    height:25px;
    border: 1px solid white;
    display: block;
    margin-right: auto;
    margin-left: auto;
}
li {
    float: left;
}
.fort {
    float: right;
}
.fort a {
 display: flex;
 padding: 10px 22px;
 font-size: 29px;
 font-family: sans-serif;
 text-decoration: none;
 color: white;
}
.fort a:hover {
    color: red;
}
h1 {
    color: white;
    font-family: sans-serif;
    text-align: center;
    font-size: 43px;
}
p {
    font-family: sans-serif;
    color: white;
    text-align: center;
    font-size: 24px;
}
.switch {
    display: block;
    text-align: center;
    text-decoration: none;
    color: red;
    font-family: sans-serif;
    font-size: 20px;
}
.switch:hover {
    color: white;
}
.osu {
    display: flex;
    align-items: center;
    justify-content: center;
}
.hiddenbtn {
    display: block;
    font-family: Arial, Helvetica, sans-serif;
    color: white;
    text-align: center;
    font-size: 48px;
    text-decoration: none;
    font-weight: 700;
}

.gamechild {
    display: block;
    text-align: center;
    font-family: sans-serif;
    text-decoration: none;
    color: white;
    font-size: 48px;
}
.gamechild a:hover {
color: red;
}
.bigbtn a:hover {
    color: yellow;
}
.bigbtn {
    display: block;
    font-family: Arial, Helvetica, sans-serif;
    color: white;
    text-align: center;
    font-size: 48px;
    text-decoration: none;
    font-weight: 700;
}