body {
   background-color: black;
   color: white;
   margin: 20px; 
font-family: arial, helevetica;
   } 
p {

font-size: 12px;
line-height: 180%; 
text-align: left;
color: #fff;
}
.tab {
  width: 100%;
  height: 100%;
  border: none;
}
.centr {
 text-align:center;
}
.left {
text-align:left;
}

a { color: yellow;
   font-weight:bold;
   text-decoration: none;
   font-size: 14px;
   }
a:hover {
color: red;
}

img {border: none;}

h3 {text-align: left}