@media only screen and (max-width: 640px){
.c-heading1-01 h1 {
    font-size: 125%;
}
.c-heading3-01 h2, .c-heading3-01 h3 {
    border-bottom: 1px solid #d4d5d5;
    font-size: 125%;
    padding-bottom: 0;
}
}