.str {
		  margin: auto auto;
		  padding: auto auto;
		  /*background: #F4F6F7;*/
		  background: white;
		  background-clip: padding-box;
		  border: 1px solid #172b4e;
		  border-bottom-color: #142647;
		  border-radius: 5px;
		  -webkit-box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), inset 0 0 1px 1px rgba(255, 255, 255, 0.1), 0 2px 10px rgba(0, 0, 0, 0.5);
		  box-shadow: inset 0 1px rgba(255, 255, 255, 0.3), inset 0 0 1px 1px rgba(255, 255, 255, 0.1), 0 2px 10px rgba(0, 0, 0, 0.5);	
	}
	.str h2 { color: #0000ff; text-shadow: 0 0 10px rgba(0,0,0,0.3); letter-spacing:1px; text-align:center; }	
.button {
    background-color: #4CAF50; /* Green */
    border: none;
 	border-radius: 8px;
	box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 8px 4px;
    -webkit-transition-duration: 0.4s; /* Safari */
    transition-duration: 0.4s;
    cursor: pointer;
}
.button1 {
    background-color: #4CAF50; 
    color: white; 
    border: 2px solid #4CAF50;
	padding: 10px 8px;
}

.button1:hover {
    background-color: #4CAF50;
    color: red;
}