body{
background-color:#000000;

}
#head{
color:#15f4ee;
text-align: center;
 


font-size:50px;
}
#btn{
background-color:#000000;
color:#15f4ee;
position: relative;p""
left:6%;
border-radius:15px;
height:100px;
} 
#abc{
  color:#15f4ee;
  }
#area{
 font-size:0px;
 color:#000000;
 }
ul{
margin:0;
padding:0;
list-style:none;
height:60px;
line-height:60px;
background-color:#156ee2;
font-family:Arial, Helvetica,sans-sarif;
font-size:15px;
}
