html,
body {
	margin: 0;
	padding: 0;
	border: 0;
	outline: 0;
	font-size: 100%;
	vertical-align: baseline;
	
	width: 100%;
	height: 100%;
	
}
input:focus {
            border-style: none;
            outline: none; //好像是outline起主要作用
        }


.apTitle {
    font-size: 40px;
    
    position: absolute;
    top: 28%;
    left:50%;
	margin-left: -303px;
    text-align: center;
}

input::-webkit-input-placeholder{
    color: #cccccc;
    font-size: 18px;
}


canvas {
	display: block;
	vertical-align: bottom;
}

#particles-js {
	width: 100%;
	height: 100%;
	background-image: url('../images/666.jpg');
	background-size: cover;
	background-position: 50% 50%;
	background-repeat: no-repeat;
	width: 100%;
	height: 100%;
	position: absolute;
	top: 0;
	left: 0;
}