button{
     background-color: #21bf73;
     color:  white;
     padding: 5px;
     margin: 10px;
     width: 250px;
     height: 40px;
     border: 1px solid blue;
     border-bottom:5px solid #52de97;
     border-left: 5px solid #52de97;
     border-right: 0px solid #52de97;
     border-top:  0px solid #52de97;
     border-radius: 25px;
     font-size: 16px;
     font-weight: bold;
     outline: none;
}
a
{
	text-decoration: none;
	color: inherit;
}
@media only screen and (max-width: 320px)
{
	button{width:200px;}
	
}