:root {
  --font-family: Courier, monospace;
  --font-size: 10px;
  --line-height: 1.3em;
  --font-color: black;
  --link-color: #22506A;
  --link-text-decoration: none;
  --content-padding: 25px 25px;
  --content-bg-color: #eee7d7;
  --opacity: 0.0;
  --header-height: 225px;
  --header-margin-bottom: 0px;
  --sidebar-margin: 10px;
  --sidebar-width: 200px;
  --sidebar-padding: 15px 15px;
  --sidebar-bg-color: #f6eee3;
  --footer-height: 50px;
  --footer-bg-color: #e5decf;
  --navitems-alignment: center;
  --space-between-navitems: 40px;
  --navbar-margin-bottom: 10px;
  --nav-bg-color: orange;
  --container-max-width: 1000px;
  --container-min-width: 300px;
  --container-bg-color: #1591D1;
  --opacity: 0.0;
  --row-gap: 5px;
  --sidebar-height: 100%;
  --sidebar-overflow: auto;
  --background-color: #1591D1;
  --box-shadow-size: 5px 5px;
  
  --s: 50px; /* control the size*/
  --c1: #5e5c64;
  --c2: #77767b;
  --c3: #2c2e2a;
  
  --p:at 45% 40%,#0000 75%,;
  --g1:conic-gradient(var(--p) var(--c1) 0);
  --g2:conic-gradient(var(--p) var(--c2) 0);
}





body {
  background-repeat: repeat;
  background-image: url(res/cat_ears_background.png);
  color: black;
  font-family: var(--font-family);
  margin: 0;
}

main {
 max-width: var(--container-max-width); 
 min-width: var(--container-min-width); 
 width: 70%;
 margin: auto;
}

#pagetitle {
  background-image: url(res/cloud.png);
  background-position: left top;
  background-size: cover;
  background-color: transparent;
  padding: 30px 40px;
  display: flex;
}

#subpagetitle {
  text-align: center;
  background-color: transparent;
  padding: 10px 10px;
  font-family: Cursive, "Lucida Handwriting";
  width: 30%;
  margin-left: auto;
  margin-right: auto;
  border: 4mm ridge;
  border-color: yellow;
  background-image: url(res/aida.jpg);
  
}

#subheader {
  display: inline;
  align-items: center;
}

#navbar {
  margin-top: var(--navbar-margin-bottom);
}

#left-sidebar {
  border: 1px #000 solid;
  width: var(--sidebar-width);
  margin-right: var(--sidebar-margin);
  margin-bottom: var(--row-gap);
  height: 720px;
  overflow: hidden;
  background-position: center bottom;
  background-size: cover;
 
  background:
    var(--g1),var(--g2) calc(2*var(--s)) 0,
    var(--g2) calc(3*var(--s)) var(--s),
    var(--g1) var(--s) var(--s) var(--c3);
  background-size: calc(4*var(--s)) calc(2*var(--s));
 
  
  box-shadow: var(--box-shadow-size);
}

#right-sidebar {
  border: 1px #000 solid;
  width: var(--sidebar-width);
  margin-left: var(--sidebar-margin);
  margin-bottom: var(--row-gap);
  height: 720px;
  overflow: hidden;
  background-image: url('');
  background-position: center bottom;
  background-repeat: no-repeat;
  background-size: cover;
  background-color: var(--sidebar-bg-color);
  box-shadow: var(--box-shadow-size);
}

#mid-content-container {
  width: 60%;
  background-color: var(--content-bg-color);
  border-style: solid;
  border-width: 3px;
  border-left-width: 2px;
  border-right-width: 2px;
  border-color: black;
  padding: var(--content-padding);
  box-shadow: var(--box-shadow-size);
}

#pagefooter {
  margin-top: 20px;
  background-color: var(--footer-bg-color);
  height: var(--footer-height);
  border-color: black;
  padding: var(--content-padding);
  box-shadow: var(--box-shadow-size);
  border: 2px #000 solid;
}


.sidebar-wrapper{
  padding: var(--sidebar-padding);
  height: var(--sidebar-height);
  overflow: var(--sidebar-overflow);
}

.sidebar-wrapper img {
  width: 80%;
 margin: auto; 
}

.sidebar-wrapper h2{
  background-color:  #e6b335;
  font-weight: bold;
  font-variant: small-caps;
  color: white;
  font-size: 16px;
  text-align: center;
}
 
.nav {
  text-align: var(--navitems-alignment);
  font-variant: small-caps;
  margin-top: 0;
  margin-bottom: var(--navbar-margin-bottom);
  padding-top: 1em;
  padding-bottom: 1em;
  background-color: var(--nav-bg-color);
  border-color: orange;
  border-style: inset;
  border-width: thick;
 
}

.nav li {
  display: inline-block;
  padding-right: var(--space-between-navitems);
}

.flex {
  display: flex;
}

.titleimage{
  width: 60% ;
  margin: auto;
}

.button {
  width: 88px;
  height: 31px;
}

.button::selection {
  color: #000000;
  background-color: #a0522d;
}

.button-list {
    list-style-type: none;
    margin: 0;
    padding: 0;
}


#rotating-cat {
  margin: auto;
  border: 1px solid black;
  width: 200px;
  height: 100px;
  background-color: coral;
  color: white;
  animation: mymove 5s infinite;
}

@keyframes mymove {
  50% {transform: rotate(360deg);}
}