.text_expand{
    background: #2a2c39;
    padding: 80px 0;
    overflow: hidden;
}

.text_expand h1{
    margin: 0;
    padding: 0;
    font-size: 60px;
    text-transform: uppercase;
    text-align: center;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
}
.text_expand h1 span{
    display: inline-flex;
    color: #ff7a00;
}
.text_expand h1 span:nth-child(even){
    overflow: hidden;
    transition: ease-in-out 0.5s;
    color: #fff;
    border-bottom: 8px solid #ff7a00;
    letter-spacing: -1em;
}
.text_expand h1:hover span:nth-child(even){
    letter-spacing: 0;
}
.text_expand h1:hover span:nth-child(2){
    transition-delay: 0s;
}
.text_expand h1:hover span:nth-child(4){
    transition-delay: 0.5s;
}
.text_expand h1:hover span:nth-child(6){
    transition-delay: 1s;
}
.text_expand h1:hover span:nth-child(8){
    transition-delay: 1.5s;
}