body,
html {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: "Helvetica", sans-serif;
    background: #28262b;
    background: linear-gradient(135deg, #212529 0%, #343a40 100%);
}

.container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

@-webkit-keyframes avatar-float {
    0% {
        box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.6);
        transform: translatey(0px);
    }
    50% {
        box-shadow: 0 25px 15px 0px rgba(0, 0, 0, 0.2);
        transform: translatey(-20px);
    }
    100% {
        box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.6);
        transform: translatey(0px);
    }
}

@keyframes avatar-float {
    0% {
        box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.6);
        transform: translatey(0px);
    }
    50% {
        box-shadow: 0 25px 15px 0px rgba(0, 0, 0, 0.2);
        transform: translatey(-20px);
    }
    100% {
        box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.6);
        transform: translatey(0px);
    }
}
.avatar {
    width: 150px;
    height: 150px;
    box-sizing: border-box;
    border: 5px white solid;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 5px 15px 0px rgba(0, 0, 0, 0.6);
    transform: translatey(0px);
    -webkit-animation: avatar-float 6s ease-in-out infinite;
    animation: avatar-float 6s ease-in-out infinite;
}
.avatar img {
    width: 100%;
    height: auto;
}

@-webkit-keyframes content-float {
    0% {
        transform: translatex(-2px);
    }
    50% {
        transform: translatex(2px);
    }
    100% {
        transform: translatex(-2px);
    }
}

@keyframes content-float {
    0% {
        transform: translatex(-2px);
    }
    50% {
        transform: translatex(2px);
    }
    100% {
        transform: translatex(-2px);
    }
}
.content {
    width: 100%;
    max-width: 600px;
    padding: 20px 40px;
    box-sizing: border-box;
    text-align: center;
    font-size: 2.5em;
    -webkit-animation: content-float 3s ease-in-out infinite;
    animation: content-float 3s ease-in-out infinite;
}