body {

	display: flex;

	flex-direction: column;

	justify-content: space-between;

	box-sizing: border-box;

	margin: 0;

	padding: 0;

	position: relative;

	top: 0;

	left: 0;

	background-color: #fff;

	min-height: 100vh;

}



.top-image,

.bottom-image,

.desc-tip {

	display: block;

	margin: 0 auto;

	width: 100%;

	max-width: 720px;

}

.bottom {
	    display: flex;
	        justify-content: center;
		    align-items: flex-start;
	    }
	    .bottom-image {
		        max-height: 45vh;
			    width: auto;
			        max-width: 100%;
			}

			.bottom,
			.icon-and-buttons {

				width: 100%;

				max-width: 720px;

				display: block;

				margin: 0 auto;

			}

			.icon-and-buttons {

				display: flex;

				justify-content: center;

				align-items: center;

			}



			.icon-and-buttons img {

				max-width: 100%;

			}



			.icon-and-buttons .icon {

				margin: 10px;

				width: 30%;

				height: auto;

			}


			.tip {

				position: relative;

			}

			.top-image,

			.desc-tip,

			.bottom-image {

				height: auto;

			}



			.fixed-image {

				position: absolute;

				top: -20px;

				right: 5px;

				width: 63px;

				height: 82px;

			}

			.icon-and-buttons a {

				transition: transform 0.2s;

				display: block;

				width: 100%;

				height: 60px;

				margin: 5px;

			}

			.hidden {

				visibility: hidden;

			}

			.wx {

				display: none;

				position: fixed;

				top: 0;

				left: 0;

				width: 100%;

				height: 100%;

				z-index: 9999;

				text-align: center;

			}

			.wx img {

				width: 100%;

				height: auto;

				margin-top: 0;

			}

			.icon-and-buttons .button:active {

				transform: scale(0.9);

			}

			img {

				user-select: none;

				pointer-events: none;

			}

			.btn1{

				padding: 14px 55px; cursor: pointer; width: auto; margin: 8px; border: none;

				border-radius: 30px; font-size: 20px; background: #d02525; color: white;

			}

			.btn2 {

				padding: 14px 55px; cursor: pointer; width: auto; margin: 8px; border: none;

				border-radius: 30px; font-size: 20px; background: #4285f4; color: white;

			}

			.btn3{

				padding: 14px 55px; cursor: pointer; width: auto; margin: 8px; border: none;

					border-radius: 30px; font-size: 20px; background: #28a745; color: white;

				}