@import url(https://fonts.googleapis.com/css2?family=Imprima&family=Satisfy&display=swap);
html {
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: border-box;
}

body {
  font-family: "Imprima", sans-serif;
  font-size: 16px;
  background: rgb(243, 200, 255);
  background: linear-gradient(320deg, rgb(243, 200, 255) 0%, rgb(191, 191, 255) 100%);
}

a {
  color: #7874ff;
  transition: color 0.2s;
}
a:hover {
  color: #de7cff;
  transition: color 0.2s;
}

h1 {
  font-family: "Satisfy", serif;
  font-size: 46px;
  font-weight: normal;
  margin-left: 60px;
  display: inline-block;
  position: relative;
}
h1::after {
  content: "";
  background-color: #d7d5ff;
  height: 15px;
  display: block;
  position: absolute;
  width: 100%;
  left: 0;
  bottom: 10%;
  z-index: -1;
}

html, body {
  width: 100%;
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

.l-container {
  width: 80%;
  height: 90%;
  margin: 0 auto;
  background-color: #f8f8ff;
  border: 1px solid #7874ff;
  z-index: -2;
}

.l-nav {
  height: 7%;
  display: flex;
  align-items: stretch;
  border-bottom: 1px solid #7874ff;
}

.l-nav__tab {
  flex-grow: 1;
  border-right: 1px solid #7874ff;
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
.l-nav__tab:last-child {
  border-right: none;
}

.l-main {
  padding: 5px;
}