html{
   height: 100%;
 }

body{
   background: url(img18blur.png);
   background-color: black;
   background-repeat: no-repeat;
   background-size: cover;
   background-attachment: fixed;
   min-height: 100%;
   display: flex;
   flex-direction: column;
}

.logo{
   width: 500px;
   display: block;
   margin-left: auto;
   margin-right: auto;
   margin-top: 50px;
}

.welcome{
   font-family: Arial, Helvetica, sans-serif;
   font-size: larger;
   color: aliceblue;
}

footer{
   text-align: center;
   font-family: Arial, Helvetica, sans-serif;
   font-size: larger;
   color: aliceblue;
   margin-top: auto;
   clear: both
}

.neocitiesicon{
   width: 88px;
   height: 31px;

}

.one{
   font-family: Arial, Helvetica, sans-serif;
   color: aliceblue;
   background-color:rgb(52, 82, 159);
   width: 600px;
   height: 80px;
   margin: auto;
}

.ytvid{
   margin: auto;
   margin-bottom: auto;
   margin-left: auto;
   margin-right: auto;
}

#cat{
  width:500px;
  height:500px;
  margin: auto;
}

#h1text{
  font-family: Arial, Helvetica, sans-serif;
  color: aliceblue;
}