body {
  margin:0;
  text-align: center;
  position:relative;
  font-family: 'Noto Sans KR', sans-serif;
  width:100vw;
  height:100vh;
  background-color: black;
  overflow-x: hidden;
}

.hidden {
  display:none;
}

img {
  position:absolute;
  width:100%;
  left: 0px;
  top: 0px;
  right:0px;
  bottom:0px;
  z-index: -1;
  opacity:80%;
  margin:auto;

  }

  #clock {
    color: white;
    font-size: 140px;
    position:absolute;
    margin:0;
    top: 400px;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  #greeting {
    width:400px;
    color:white;
    font-size: 60px;
    position:absolute;
    margin:0;
    top: 550px;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  #quote {
    color:white;
    font-size: 20px;
    position:absolute;
    margin:0;
    top: 880px;
    left: 50%;
    transform: translate(-50%, -50%);
    width:80%;
  }

  #login-form {
    position:absolute;
    margin:0;
    top: 550px;
    left: 50%;
    transform: translate(-50%, -50%);
    width:350px;
  }

  #login-form input:first-child {
    height:40px;
    width:250px;
    margin-right:10px;
    text-align: center;
    font-size: 15px;
  }

  #login-form input:last-child {
    height:48px;
    background-color: black;
    color:white;
    border-radius: 5px;
    border:2px solid white;
    box-sizing: border-box;
    cursor: pointer;
  }

  #todo-list {
    background-color:white;
    font-size: 20px;
    position:absolute;
    margin:0;
    bottom: 50px;
    right: 20px;
    list-style-type: none;
    padding-left:0;
    border-radius: 5px;
    font-weight:600;
    z-index:1;
  }

  #todo-list li{
    width: 250px;
    margin-top:5px;
    margin-bottom:5px;
    font-weight:500;

  }

  #todo-list span{
    margin-right:15px;
    color:black;
    width:190px;
    display: inline-block;

  }

  #todo-list input{
    background-color: mediumaquamarine;
    color:white;
    transform : scale(1.5);
    margin:0;
    margin-bottom:10px;
    position: relative;
    top: -2px;
  }

  #weather span:first-child{
    position:absolute;
    right:30px;
    top:10px;
    font-size:25px;
    color: white;
  }

  #weather span:last-child{
    position:absolute;
    right:30px;
    top:50px;
    font-size:23px;
    color: white;
    font-weight:600;
  }


  #question{
    position:absolute;
    color:white;
    font-size:35px;
    top: 700px;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight:500;
  }

  #todo-form {
    position: absolute;
    top: 780px;
    left: 50%;
    transform: translate(-50%, -50%);
  }

  #todo-form input {
    border:none;
    background-color: transparent;
    text-align:center;
    width:350px;
    height:30px;
    font-size:30px;
    border-bottom:2px solid white;
    color:white;
    outline:none;
    padding-bottom:10px;
  }


  @media all and (max-width:1600px) {
    #quote{
      width:40%;
    }
  } 

  /* 테블릿 가로, 테블릿 세로 (해상도 768px ~ 1023px)*/ 
  @media all and (min-width:768px) and (max-width:1023px) {
    
  } 

  /* 모바일 가로, 모바일 세로 (해상도 480px ~ 767px)*/ 
  @media all and (max-width:767px) {
    #quote{
      font-size: 15px;
    }

    #todo-list {
      right:3%;
      font-size:17px;
    }

    #todo-list li {
      width:150px;
      font-size:15px;
    }

    #todo-list span {
      width:100px;
    }

  }
    @media all and (max-width:480px) {
      body {
        margin:0;
        text-align: center;
        position:relative;
        overflow: hidden;
        width:100vw;
        height:100vh;
      }

      #clock {
        font-size:80px;
        top:120px;
      }

      #greeting {
        font-size:50px;
        top:210px;
      }

      #question {
        font-size:30px;
        width:270px;
        top:540px;
      }

      #todo-form {
        top:620px;
      }

      #quote {
        width:250px;
        top:700px;
      }

      img{
        position:absolute;
        top: 270px;
        width:100%;
        z-index: -1;
        opacity:80%;
        margin:0;
      }

      #todo-list {
        background-color:white;
        font-size: 20px;
        position:absolute;
        top: 280px;
        bottom:initial;
        right: 60px;
        left: 60px;
        list-style-type: none;
        padding-left:0;
        border-radius: 5px;
        font-weight:600;
        z-index:1;
      }
    
      #todo-list li{
        margin:0;

        width: 100%;
        margin-top:5px;
        margin-bottom:5px;
        font-weight:500;
        align-items: center;
        display:flex;
        justify-content: center;
      }
    
      #todo-list span{
        margin-right:15px;
        color:black;
        width:190px;
        display: inline-block;

      }
    
      #todo-list input{
        background-color: mediumaquamarine;
        color:white;
        transform : scale(1.5);
        margin:0;
        margin-bottom:10px;
        position: relative;
        top: 4.5px;
      }


  }