.css_button {
padding: 25px 50px;
border: 1px solid #C7C7C7;
background: -webkit-gradient(linear, left top, left bottom, from(#FFFFFF), to(#BABABA));
background: -webkit-linear-gradient(top, #FFFFFF, #BABABA);
background: -moz-linear-gradient(top, #FFFFFF, #BABABA);
background: -ms-linear-gradient(top, #FFFFFF, #BABABA);
background: -o-linear-gradient(top, #FFFFFF, #BABABA);
background-color: #BABABA;
box-shadow: 0px 7px 2px -5px #1A1A1A, inset 0px 0px 0px #000000;
-webkit-box-shadow: 0px 7px 2px -5px #1A1A1A, inset 0px 0px 0px #000000;
-moz-box-shadow: 0px 7px 2px -5px #1A1A1A, inset 0px 0px 0px #000000;
-webkit-border-radius: 20px;
-moz-border-radius: 20px;
border-radius: 20px;
text-shadow: #000000 1px 1px 0px;
color: #000000;
font-size: 50px;
font-family: '微軟正黑體';
text-decoration: none;
font-weight: bold;
-webkit-transition: 1s;
-moz-transition: 1s;
-o-transition: 1s;
cursor: pointer;
}
.css_button:hover {
background: none;
background-color: #BABABA;
box-shadow: 0px 0px 5px 0px #AAAAAA;
-webkit-box-shadow: 0px 0px 5px 0px #AAAAAA;
-moz-box-shadow: 0px 0px 5px 0px #AAAAAA;
border: 1px solid #ffffff;
color: #FF0000;
}
.css_button:active {
top: 1px;
position: relative;
}