html {
    box-sizing: border-box;
    background-color: #000;
}

body {
    color: #fff;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    text-decoration: none;
}


.unselectable {
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

header {
    min-height: 75px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    background-color: rgba(0,0,0,0.8);
    margin-bottom: 50px;
}

header .left a {
    color: #fff;
    font-size: 2.25rem;
}

header .right ul {
    font-size: 1rem;
    display: flex;
    list-style: none;
}

header .right ul li {
    padding-left: 20px;
}

header .right ul li a {
    color: #fff;
    text-decoration: none;
}

header .right ul li .active {
    color: #11FF11;
}

.wrapper-button {
    font-size: 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: auto;
    width: 80%;
    margin-top: 40px;
    padding: 20px;
}

.button {
    font-size: 1.25rem;
    color: #fff;
    margin-top: 20px;
    padding: 10px 100px;
    border-radius: 10px;
    border: 1px solid #11ff11;
    background-color: rgba(17, 255, 17, 0.2);
}

.button:hover {
    background-color: rgba(17, 255, 17, 0.3);
}

.button:active {
    background-color: rgba(17, 255, 17, 0.4);
}