WelcomeItem.vue

<template>
  <div class="container">
        <div class="from-box">
            <!-- 注册 -->
            <div class="register-box hidden">
                <h1>register</h1>
                <input type="text" placeholder="用户名" id="reg_user">
                <input type="number" placeholder="手机号" id="reg_phone" >
                <input type="password" placeholder="密码">
                <input type="password" placeholder="确认密码">
                <button id="reg_submit">注册</button>
            </div>
            <!-- 登录 -->
            <div class="login-box">
                <h1>login</h1>
                <input type="text" placeholder="用户名">
                <input type="password" placeholder="密码">
                <button>登录</button>
            </div>
        </div>
        <div class="con-box left">
                    
            <img src="./img/1.png" alt="">
            <p>已有账号</p>
            <button id="login">去登录</button>
        </div>
        <div class="con-box right">
            
            <img src="./img/1.png" alt="">
            <p>没有账号?</p>
            <button id="register">去注册</button>
        </div>
    </div>
</template>

<style scoped>
*{
  /* 初始化 */
  padding: 0;
  margin: 0;
}

html,body{
  /* 100%的窗口高度 */
  height: 100vh;
  /* 弹性布局 水平+垂直居中 */
  display: flex;
  align-items: center;
  justify-content: center;
  /* 渐变背景 */
  background: linear-gradient(200deg,#f3e7e9,#e3eeff);
  -ms-overflow-style: none; 
  
}


input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}
.container{
  background-color: #fff;
  width: 650px;
  height: 415px;
  /* 阴影 */
  box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1);
  /* 相对定位 */
  position: relative;
}
.from-box{
  /* 绝对定位 */
  position: absolute;
  top: -10%;
  left: 5%;
  background-color: #d3b7d8;
  width: 320px;
  height: 500px;
  border-radius: 5px;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
   /* 弹性布局 水平+垂直居中 */
   display: flex;
   align-items: center;
   justify-content: center;
   z-index: 2;
   /* 动画过渡 加速之后 减速 */
   transition: 0.5s ease-in-out;
}

.register-box,.login-box{
  /* 弹性布局 垂直排列 */
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}
.hidden{
  display: none;
  transition: 0.5s;
}

h1{
  text-align: center;
  margin-bottom: 25px;
  /* 大写字母 */
  text-transform: uppercase;
  color: #fff;
  /* 字间距 */
  letter-spacing: 5px;
}

input{
  background-color: transparent;
  width: 70%;
  color: #fff;
  border: none;
  /* 下边框样式 */
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  padding: 10px 0;
  text-indent: 10px;
  margin: 8px 0;
  font-size: 14px;
  /* 字间距 */    
  letter-spacing: 2px;
}
input::placeholder{
  color: #fff;
}

input:focus{
  color: #a262ad;
  outline: none;
  border-bottom: 1px solid #a262ad80;
  transition: 0.5s;
}
input:focus::placeholder{
  opacity: 0;
}

.from-box button{
  width: 70%;
  margin-top: 35px;
  background-color: #f6f6f6;
  outline: none;
  border-radius: 8px;
  padding: 13px;
  color: #a262ad;
  letter-spacing: 2px;
  border: none;
  cursor: pointer;
}

.from-box button:hover{
  background-color: #a262ad;
  color: #f6f6f6;
  transition: background-color 0.5s ease;
}

.con-box{
  width: 50%;
  /* 弹性布局 垂直排列 居中 */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  /* 绝对定位 */
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.con-box.left{
  left: -2%;
}

.con-box.right{
  right: -2%;
}

.con-box h2{
  color: #8e9aaf;
  font-size: 25px;
  font-weight: bold;
  letter-spacing: 3px;
  text-align: center;
  margin-bottom: 4px;
}

.con-box p{
  font-size: 12px;
  letter-spacing: 2px;
  color: #8e9aaf;
  text-align: center;
}
.con-box span{
  color: #d3b7d8;
}

.con-box img{
  width: 150px;
  height: 150px;
  opacity: 0.9;
  margin: 40px 0;
}

.con-box button{
  margin-top: 3%;
  background-color: #fff;
  color: #a262ad;
  border: 1px solid #d3b7d8;
  padding: 6px 10px;
  letter-spacing: 1px;
  outline: none;
  /* 鼠标放上变小手 */
  cursor: pointer;
}
.con-box button:hover{
  background-color: #a262ad;
  color: #f6f6f6;
}

</style>