.btn-secondary,.btn-secondary:hover,.btn-secondary:focus{color:#333;text-shadow:none;background-color:#fff;border:.05rem solid #fff}html,body{height:100%}body{display:-ms-flexbox;display:flex}.cover-container{max-width:42em}.masthead{color:#fff;margin-bottom:2rem}.masthead-brand{margin-bottom:0}.nav-masthead .nav-link{padding:.25rem 0;font-weight:700;color:rgba(255,255,255,0.5);background-color:transparent;border-bottom:.25rem solid transparent}.nav-masthead .nav-link:hover,.nav-masthead .nav-link:focus{border-bottom-color:rgba(255,255,255,0.25)}.nav-masthead .nav-link+.nav-link{margin-left:1rem}.nav-masthead .active{color:#fff;border-bottom-color:#fff}@media (min-width: 48em){.masthead-brand{float:left}.nav-masthead{float:right}}.cover{padding:0 1.5rem}.cover .btn-lg{padding:.75rem 1.25rem;font-weight:700}.mastfoot{color:rgba(255,255,255,0.5)}.bd-placeholder-img{font-size:1.125rem;text-anchor:middle;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}@media (min-width: 768px){.bd-placeholder-img-lg{font-size:3.5rem}}.checkbox-large{width:40px}