.btn-secondary,.btn-secondary:focus,.btn-secondary:hover{color:#333;text-shadow:none}body{text-shadow:0 .05rem .1rem rgba(0,0,0,.5);box-shadow:inset 0 0 5rem rgba(0,0,0,.5)}.cover-container{max-width:42em}.nav-masthead .nav-link{color:hsla(0,0%,100%,.5);border-bottom:.25rem solid transparent}.nav-masthead .nav-link:focus,.nav-masthead .nav-link:hover{border-bottom-color:hsla(0,0%,100%,.25)}.nav-masthead .nav-link+.nav-link{margin-left:1rem}.nav-masthead .active{color:#fff;border-bottom-color:#fff}.bd-placeholder-img{font-size:1.125rem;text-anchor:middle;-webkit-user-select:none;-moz-user-select:none;user-select:none}@media (min-width:768px){.bd-placeholder-img-lg{font-size:3.5rem}}.b-example-divider{height:3rem;background-color:rgba(0,0,0,.1);border:solid rgba(0,0,0,.15);border-width:1px 0;box-shadow:inset 0 .5em 1.5em rgba(0,0,0,.1),inset 0 .125em .5em rgba(0,0,0,.15)}.b-example-vr{flex-shrink:0;width:1.5rem;height:100vh}.bi{vertical-align:-.125em;fill:currentColor}.nav-scroller{position:relative;z-index:2;height:2.75rem;overflow-y:hidden}.nav-scroller .nav{display:flex;flex-wrap:nowrap;padding-bottom:1rem;margin-top:-1px;overflow-x:auto;text-align:center;white-space:nowrap;-webkit-overflow-scrolling:touch}#__next{flex:1 1 auto}