* {
    padding: 0;
    margin: 0;
    /* box-sizing: border-box; */
}

body {
    box-sizing: border-box;
}


h1 {
    text-align: center;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin-top: 30px;
    margin-bottom: 10px;
    color: rgb(19, 39, 47);
    /* background: linear-gradient(rgb(62, 236, 236),rgb(241, 224, 123)); */
    background: -webkit-linear-gradient(#ec4899, rgb(71, 94, 221));
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   font-weight: bold;
   font-size: 1.9rem;
}

.container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    flex-direction: column;
    padding-bottom: 30px;
}
.child {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

p {
    margin: 25px auto;
    color: rgb(38, 39, 36);
    font-size: 1rem;
    text-align: center;
    width: 50%;
    font-family: Readex Pro, Sans-serif;
    color: rgb(107 114 128);
}

.btn {
    padding: 0.6rem;
    background: #ec4899;
    color: rgb(27, 18, 18);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    border-radius: 5px;
    width: 15%;
    font-size: 1rem;
    /* margin-bottom: 2.5rem; */
}

.btn:hover {
    background-color: rgb(104, 104, 223);
}

section.main {
    background: url(../images/pexels-trang-doan-1024248.jpg);
    background-size: cover;
    opacity: 80%;
    position: relative;
}


section.main::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0 , .6);
}

.box {
    display: flex;
    flex-direction: row;
    color: whitesmoke;
    font-size: 1.8rem;
    text-align: center;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

.counter-box {
    z-index: 1;
    margin: 0 20px;
}