.catch{
    animation-name: fadeleftanime;
    animation-duration:2s;
    animation-fill-mode: forwards;
    opacity: 0;
}
@keyframes fadeleftanime{
    from{
        opacity: 0;
        transform: translateX(-150px);
    }
    to{
        opacity: 1;
        transform: translateX(0);
    }
}

.flow{
    display: flex;
    justify-content: center;
    animation-name: fadeinanime;
    animation-duration:2s;
    animation-fill-mode: forwards;
    opacity: 0;
}
@keyframes fadeinanime{
    from{
        opacity: 0;
        transform: translateX(300px);
    }
    to{
        opacity: 1;
        transform: translateX(0);
    }
}
.flow img{
    width: 80%;
}

.explan{
    margin:300px 15% 15% 15%;
    animation-name: fadeanime;
    animation-duration:4s;
    animation-fill-mode: forwards;
    opacity: 0;
}
@keyframes fadeanime{
    from{
        opacity: 0;
    }
    to{
        opacity: 1;
    }
}

h2{
    background-color: cadetblue;
    color: white;
}

/*スマホOK設定*/
@media(max-width: 600px){
.head{
    position: fixed;
    top: 0;
    z-index: 1;
    background-color: mintcream;
}

}