mame-agent.css

body {
  background: skyblue;
  align-content: center;
  text-align: center;
}

* {box-sizing: border-box;}

.button {
    align-self: center;
    text-align: center;
    width: 60%;
    display: inline-block;
    padding: 15px;
    margin-bottom: 30px;
    font-weight: 400;
    font-size: 23px;
    line-height: 20px;
    color: rgb(255, 255, 255);
    text-shadow: rgba(0, 0, 0, 0.270588) 0px 1px 1px;
    vertical-align: middle;
    cursor: pointer;
    background-color: rgb(85, 85, 85);
    border: 1px solid rgb(73, 73, 73);
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
    border-bottom-left-radius: 5px;
    background-image: linear-gradient(to top, rgb(82, 82, 82), rgb(105, 105, 105));
    text-decoration: none;
    margin-right: 5px;
    margin-left: 5px;
    box-shadow: rgba(255, 255, 255, 0.4) 0px 1px 0px 0px inset, rgba(255, 255, 255, 0.2) 0px 0px 5px 0px inset, rgba(255, 255, 255, 0) 0px 67px 67px -40px inset, rgb(46, 46, 46) 0px 2px 0px 0px, rgba(0, 0, 0, 0.4) 0px 3px 6px 0px;
}

.button-common {
    border: 1px solid #009e62;
    background-color: #00c67c;
    background-image:         
        linear-gradient(0deg, #00b772, #00d486);    

    box-shadow: 
        inset 0 1px 0 0 rgba(255,255,255,0.4),
        inset 0 0 5px 0 rgba(255,255,255,0.2),
        inset 0 67px 67px -40px rgba(255,255,255,0),
        0 2px 0 0 #008f5a,
        0 3px 6px 0 rgba(0,0,0,0.4);
}
.button-hello:hover {
    border-color: rgba(0,158,98,0.5);
    box-shadow: 
        inset 0 1px 0 0 rgba(255,255,255,0.6),
        inset 0 0 5px 0 rgba(255,255,255,0.2),
        inset 0 67px 67px -40px rgba(255,255,255,0.3),
        0 2px 0 0 #008f5a,
        0 3px 8px 0 rgba(0,0,0,0.4);
}
.button-hello:active {
    box-shadow: 
        inset 0 1px 0 0 rgba(255,255,255,0),
        inset 0 1px 7px -1px rgba(0,0,0,0.35),
        inset 0 67px 67px -40px rgba(255,255,255,0),
        0 2px 0 0 rgba(79,111,168,0),
        0 4px 7px 0 rgba(0,0,0,0);
    transform: translate(0px, 2px);
}