style.css

*{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
    font-family:Arial, Helvetica, sans-serif
}
body{
    background-image: url("bgimg.jpg");
    background-repeat: no-repeat;
    background-size: cover;
}
.container{
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    text-align: center;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);  
}
.sub-contain{
    border: 2px solid black;
    width: 90px;
    height: auto;
    justify-content: center;
    text-align: center;
    /* cursor: pointer; */
    margin-right: 20px;
    margin-bottom: 20px;
    /* margin-left: auto; */
    /* padding: 10px; */
}
/* .sub-contain:last-child{
    margin-right: 0;
} */
.sub-contain h3{
    color: white;
    text-transform: uppercase;
    font-size: 2em;
}
.sub-contain p{
    /* color: rgb(221, 221, 9); */
    color: #ffc600;
    text-transform: uppercase;
    font-weight: 700;
}