style.css

@font-face {
  font-family: Brushield;
  src: url(font/BrushieldItalic-n8PM.ttf);
}
.main {
  display: flex;
}
.left {
  height: 100vh;
  width: 45%;
  background-image: url(image/splash.jpg);
  background-size: 102% 100%;
}
.right {
  height: 100vh;
  width: 65%;
  background-color: #070ca8;
}
.sider {
  position: relative;
  top: 20%;
  background: rgba(240, 248, 255, 0.8);
  height: 10rem;
  display: flex;
}
.logo {
  margin-left: 6%;
  align-self: center;
  width: 180px;
  height: 145px;
  background-image: url(image/logo.png);
  background-size: 100% 100%;
}
.logo-title {
  display: flex;
  flex-direction: column;
  align-self: center;
  line-height: 3.4rem;
}
.title-top {
  font-family: Brushield;
  color: #1ab0d1;
  font-size: 5rem;
}
.title-down {
  font-family: Brushield;
  color: #0068b6;
  font-size: 5rem;
}

.info {
  font-family: "Zhi Mang Xing", cursive;
  color: aliceblue;
  font-size: 1.8rem;
  padding: 25px 25px 0;
}

.content {
  height: 310px;
  margin-top: 20px;
  background-color: #0068b6;
  padding: 0 25px;
}

.form-info {
  font-family: "Zhi Mang Xing", cursive;
  color: aliceblue;
  font-size: 2rem;
  padding: 12px 0 24px;
}

.form {
  font-family: "Poppins", sans-serif;
  color: aliceblue;
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  gap: 25px;
}
.se1 {
  display: flex;
  gap: 75px;
}
.se2 {
  display: flex;
  gap: 75px;
}
.se3 {
  display: flex;
  gap: 75px;
}
input {
  width: 250px;
  height: 1.4rem;
  margin-bottom: 0.2rem;
  padding: 0.16rem 0.25rem 0;
  font-family: "Poppins", sans-serif;
  font-weight: bold;
  color: aliceblue;
  letter-spacing: 1px;
  background: transparent;
  border-radius: 2px;
  border: 1px solid rgba(240, 248, 255, 0.3);
}
label {
  position: relative;
}
input:focus {
  outline: none;
  margin-bottom: 0rem;
  height: 1.6rem;
  border: 1px solid aliceblue;
}
input:focus:invalid {
  border: 1px solid orangered;
}
input:focus:valid {
  border: 1px solid greenyellow;
}
.error {
  font-size: 0.75rem;
  color: red;
  position: absolute;
}
.join {
  margin: 24px 32px 0;
  width: 200px;
  height: 50px;
  color: aliceblue;
  font-size: 2rem;
  font-family: "Zhi Mang Xing", cursive;
  background-color: #1ab0d1;
  border: 2px solid aliceblue;
  border-radius: 4px;
  cursor: pointer;
}
.join:hover {
  background-color: aliceblue;
  color: #1ab0d1;
  border: 2px solid #1ab0d1;
}
.log {
  margin: 16px 32px;
  font-size: 2rem;
  font-family: "Zhi Mang Xing", cursive;
  color: aliceblue;
  letter-spacing: 1px;
}
.login {
  background-color: transparent;
  color: #1ab0d1;
  border: none;
  cursor: pointer;
  opacity: 0.8;
}
.login:hover {
  opacity: 1;
}