.auth-bg{width:100vw;height:100vh;background-image:url(http://drozdov.com/images/leti.jpg);background-position:50% 50%;background-repeat:no-repeat;background-size:cover;color:#000}.v-card-form{width:450px;margin:0 auto}@media only screen and (max-width:460px){.v-card-form{width:360px;margin:0 auto}}.add-btn-right{text-align:right}.about-sso{width:900px;margin:0 auto;padding:20px}@media only screen and (max-width:900px){.about-sso{width:96%}}.add-btn{text-align:right}@media only screen and (max-width:640px){.add-btn{text-align:center}}