@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

* {
    margin: 0;
    padding: 0;
    list-style: none;
}

a{
    text-decoration: none;
    color: inherit;
}

button {
    background-color: transparent;
    border: none;
}

html, body {
    height: 100%;
    font-family: 'IBM Plex Sans', sans-serif;
}

main{
    width: 100%;
    display: flex;
    justify-content: center;
}

.container{
    width: 100%;
    text-align: center;
    color: #191919;
}

.container img {
    margin-top: 80px;
}

.container h2 {
    margin-top: 28px;
    font-size: 28px;
    line-height: 39px;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.7s, margin 1.3s;
}

.container h3 {
    font-size: 16px;
    margin-top: 32px;
    line-height: 28px;
    font-weight: 400;
    opacity: 0;
    transition: opacity 0.7s, margin 1.3s;
}

.download_bt {
    width: 202px;
    min-height: 50px;
    margin: 16px auto 10px auto;
    display: flex;
    justify-content: center;
    background-color: #000;
    color:#fff;
    padding: 11px 0;
    border-radius: 30px;
    align-items: center;
    opacity: 0;
    transition: opacity 0.7s, margin 1.3s;
}

.icon-apple {
    padding-right: 4px;
    width: 28px;
    height: 28px;
    background: url("./images/icon_apple_white.svg") no-repeat center;
}

.icon-android {
    padding-right: 4px;
    width: 26px;
    height: 22px;
    background: url("./images/icon-android.svg") no-repeat center;
}

.download_text {
    font-weight: 500;
    font-size: 16px;
    line-height: 22px;
}

.banner_img,
.container h2,
.container h3,
.container .download_bt,
.fadeIn {
    animation: fadeIn 0.7s forwards ease-in;
}