problem3.css

html,
body {
  margin: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #585858;
  flex-direction: column;
}
.login {
  position: absolute; /* 절대 위치로 설정 */
  top: 20px; /* 상단에서 20px 떨어지게 설정 */
  right: 20px; /* 오른쪽에서 20px 떨어지게 설정 */
  color: white;
  display: flex;
  width: auto; /* 자동 너비 */
}
.hr_login {
  width: 100vw;
  color: white;
  position: absolute; /* 절대 위치로 설정 */
  margin-top: -650px;
}
.box {
  width: 400px;
  height: 600px;
  border: solid 1px #000000;
  background-color: white;
  display: none;
}
.inputbox {
  width: 240px;
  height: 30px;
  border: none;
}
.inputalign {
  justify-content: flex-start;
  align-items: center;
  text-align: center;
  margin-top: 12px;
  margin-left: 50px;
  width: 300px;
  height: 35px;
  border: solid 1px #b2adad;
  display: flex;
}

.buttonstyle1 {
  margin-top: -10px;
  margin-left: 50px;
  height: 45px;
  width: 180px;
  background-color: rgb(48, 167, 48);
  color: white;
  font-size: 15px;
  border-radius: 10px;
  border: none;
}
.buttonstyle2 {
  margin-top: -10px;
  margin-left: 20px;
  height: 45px;
  width: 100px;
  background-color: red;
  color: white;
  font-size: 15px;
  border-radius: 10px;
  border: none;
}
.warning {
  color: red;
  height: 100px;
  margin-left: 50px;
  max-height: 100px; /* 최대 높이 설정 */
  overflow-y: auto; /* 세로 스크롤 활성화 */
}