style.css

body {
    text-align: center;
    font-family: 'Bree Serif', serif;
    padding: 20px;
    opacity: 0;
    -webkit-transition: all 0.25s ease-in-out;
       -moz-transition: all 0.25s ease-in-out;
         -o-transition: all 0.25s ease-in-out;
            transition: all 0.25s ease-in-out;
}

body.loaded, body.ie {
    margin: 0 !important;
    opacity: 1;
}

p {
    font-size: 25px;
    margin: 0;
}

.wrapper { 
    display: block; 
    width: 80%;
    margin: 150px auto; 
}

@media (max-width: 768px) {
    .wrapper {
        margin: 0 auto;
    }
}

.local-ip, .public-ip {
    font-size: 40px;
    margin-bottom: 20px;
}

.btn {
    background-color: #D3D3D3;
    border: none;
    color: black;
    padding: 10px 20px;
    text-align: center;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
    user-select: none;
    border-radius: 3px;
}

.btn:hover {
    background-color: #BCBCBC;
    -webkit-transition: all 0.1s ease-in-out;
       -moz-transition: all 0.1s ease-in-out;
         -o-transition: all 0.1s ease-in-out;
            transition: all 0.1s ease-in-out;
}
.btn:active {
    background-color: #999999;
}
    
.public-btn, .local-btn {
    left: 50%;
    margin-bottom:20px;
}

.local-copy, .public-copy {
    opacity: 0;
    height: 0;
    width: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
}