.large-image { margin-left: auto; margin-right: auto; display: block; padding: 5px 0px; }

.app-description { text-align: center; }

.btn-primary { color: #ffffff; background-color: #3498DB; border-color: #3498DB; }

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
.btn-primary.active { background-color: #2980B9; border-color: #2980B9; }

.btn-primary.disabled,
.btn-primary[disabled],
fieldset[disabled] .btn-primary,
.btn-primary.disabled:hover,
.btn-primary[disabled]:hover,
fieldset[disabled] .btn-primary:hover,
.btn-primary.disabled:focus,
.btn-primary[disabled]:focus,
fieldset[disabled] .btn-primary:focus,
.btn-primary.disabled:active,
.btn-primary[disabled]:active,
fieldset[disabled] .btn-primary:active,
.btn-primary.disabled.active,
.btn-primary[disabled].active,
fieldset[disabled] .btn-primary.active { background-color: #3498DB; border-color: #3498DB; }