* {
    margin: 0;
    padding: 0;
    border: 0 none;
    background: none;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

h2 {
    margin-bottom: 20px;
}

header {
    background-color: #000;
    width: 100%;
    box-sizing: border-box;
    color: #fff;
    padding: 10px 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
}
header img{
    margin-right: 10px;
}

.container {
    max-width: 1200px;
    margin: auto;
}

main {
    text-align: center;
    padding: 20px 30px;
}

button {
    max-height: 77px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    color: #fff;
    font-size: 20px;
    border-radius: 4px;
    margin-bottom: 30px;
    padding: 15px 10px;
    box-shadow: 3px 3px 15px -5px rgba(51, 51, 51, 0.5);
}
button img,
button svg {
    vertical-align: middle;
    width: 32px;
    fill: #fff;
    margin-right: 7px;
}

.btn-whatsapp {
    background-color: #00E676;
}

.btn-telegram {
    background-color: #32afed;
}

.btn-messenger {
    background-color: #09f;
}

.btn-viber {
    background-color: #665cac;
}

footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
    padding: 10px;
    background-color: #ffffff;
}