body {
    margin: 0px;
    z-index: 1;
}

.flex {
    flex-grow: 1;
}

.toolbarLoginBtn {
    margin-left: -12px;
    margin-right: 20px;
}

.flex-parent {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;

}

.paper {
    padding: 12px;
}

.login-btn {
    width: 100%;
}

.lesson-card-lg {
    height: 300px;
}
.lesson-card-xs {
    min-height: 300px;
}

.lesson-card-btn {
    margin-bottom: 16px;
    width: 100%;
}

.content {
    padding: 16px;
}

.vert-spacer {
    padding: 5px;
}

.intro-card-lg {
    width: 50%;
}
.intro-card-xs {
    width: 100%;
}
.intro-subheading {
    border-right: solid;
    border-left: solid;
    
    border-color: red;
}