.back-title{color:white;font-weight:700;text-shadow:0 2px 4px rgba(0,0,0,.3);line-height:1.2;margin:0;font-size:2.25rem}.back-subtitle{color:rgba(255,255,255,.8);font-size:1rem;text-transform:uppercase;font-weight:500;margin-bottom:.75rem;letter-spacing:.05em}@media (min-width:640px){.back-title{font-size:3rem}}@media (min-width:768px){.back-title{font-size:4rem}}@media (min-width:1024px){.back-title{font-size:5rem}}