body {
  margin: 0;
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-columns: 6fr;
  grid-template-rows: 70px auto ;
  grid-template-areas: 
    'header '
    'tab ';
  grid-row-gap: 1px;
  background-color: #252527;
  
}
.tab { display: none;}
.tab.active {  
  grid-area: tab;
  display: grid;
  grid-template-columns: 6fr;
  grid-template-rows: none;
  grid-template-areas: 
    'main '
    'content '
    'footer ';
  background-color: #252527;
  transition: all 3s;
}


header {
  grid-area: header;
  background-color: #474E51;
}

main {
  grid-area: main;
  background-color: #252527;
}

content {
    grid-area: content;
    background-color: #252527;
}
  

footer {
  grid-area: footer;
  background-color: #474E51;
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0px 10px;
}

.today {
  font-size: 32px;
  color: white;
}

.stitle {
  font-family: 'Nanum Gothic', sans-serif;
  font-size: 48px;
  text-shadow: 0 1px 0 #CCC, 0 2px 0 #C9C9C9, 0 3px 0 #BBB, 0 4px 0 #B9B9B9, 0 5px 0 #AAA, 0 3px 1px rgba(0, 0, 0, .1), 0 0 3px rgba(0, 0, 0, .1), 0 1px 3px rgba(0, 0, 0, .3), 0 0px 0px rgba(0, 0, 0, .2), 0 2px 5px rgba(0, 0, 0, .25), 0 5px 5px rgba(0, 0, 0, .2), 0 10px 10px rgba(0, 0, 0, .15);
  color: white;
}

.totime {
  font-size: 32px;
  color: white;
}
/*Title Main 작업*/
.main_title > div {  
  font-family: 'Nanum Gothic', sans-serif;
  text-shadow: 0 1px 0 #CCC, 0 2px 0 #C9C9C9, 0 3px 0 #BBB, 0 4px 0 #B9B9B9, 0 5px 0 #AAA, 0 6px 1px rgba(0, 0, 0, .1), 0 0 5px rgba(0, 0, 0, .1), 0 1px 3px rgba(0, 0, 0, .3), 0 3px 5px rgba(0, 0, 0, .2), 0 5px 10px rgba(0, 0, 0, .25), 0 10px 10px rgba(0, 0, 0, .2), 0 20px 20px rgba(0, 0, 0, .15);
  font-size: 32px;  
  padding: 5px;
}

.main_title {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(2, 1fr); 
  /* border: 1px #46ADEC solid; */
}
.item1 {
  color: white;
  background-color: #46ADEC;
  grid-row: 1 / 3;
  margin : 1px;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.item2 {
    color: white;
    background-color: #46ADEC;
    grid-row: 1 / 3;
    margin : 1px;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.item3 {
  color: white;
  background-color: #46ADEC;
  grid-row: 1 / 3;
  margin : 1px;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.item4 {
  color: white;
  background-color: #46ADEC;
  grid-row: 1 / 3;
  margin : 1px;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.item5 {
  color: white;
  background-color: #46ADEC;
  grid-row: 1 / 3;
  margin : 1px;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.item6 {
  color: white;
  background-color: #46ADEC;
  grid-row: 1 / 3;
  margin : 1px;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
}

/*Content Main 작업*/
.main_content {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: repeat(3, 150px); 
  /* border: 1px #46ADEC solid; */
}

/* .main_content > div {
  font-family: 'Play', sans-serif;
  font-size: 3.5rem;
  color: white;
  background-color: #474E51;
  margin : 1px;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
} */

.con2, .con3, .con4, .con5, .con6,    
.con12, .con13, .con14, .con15, .con16, 
.con22, .con23, .con24, .con25, .con26, 
.con32, .con33, .con34, .con35, .con36 {    
    font-family: 'Play', sans-serif;
    font-size: 3.5rem;
    color: white;
    background-color: #474E51;
    margin : 1px;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;    
}

.con-garo {
    font-family: 'Play', sans-serif;
    font-size: 1rem;
    color: white;
    background-color: #474E51;
    margin : 1px;
    border-radius: 5px;
}


.navt {
    font-family: 'Nanum Gothic', sans-serif;
    text-shadow: 0 1px 0 #CCC, 0 2px 0 #C9C9C9, 0 3px 0 #BBB, 0 4px 0 #B9B9B9, 0 5px 0 #AAA, 0 6px 1px rgba(0, 0, 0, .1), 0 0 5px rgba(0, 0, 0, .1), 0 1px 3px rgba(0, 0, 0, .3), 0 3px 5px rgba(0, 0, 0, .2), 0 5px 10px rgba(0, 0, 0, .25), 0 10px 10px rgba(0, 0, 0, .2), 0 20px 20px rgba(0, 0, 0, .15);
    font-size: 36px;  
    padding: 5px;
    color: white;
    background-color: #DD9234;
    margin : 1px;
    border-radius: 5px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
.navt1 {
      font-family: 'Nanum Gothic', sans-serif;
      text-shadow: 0 1px 0 #CCC, 0 2px 0 #C9C9C9, 0 3px 0 #BBB, 0 4px 0 #B9B9B9, 0 5px 0 #AAA, 0 6px 1px rgba(0, 0, 0, .1), 0 0 5px rgba(0, 0, 0, .1), 0 1px 3px rgba(0, 0, 0, .3), 0 3px 5px rgba(0, 0, 0, .2), 0 5px 10px rgba(0, 0, 0, .25), 0 10px 10px rgba(0, 0, 0, .2), 0 20px 20px rgba(0, 0, 0, .15);
      font-size: 36px;  
      padding: 5px;
      color: white;
      background-color: #DD9234;
      margin : 1px;
      border-radius: 5px;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100%;
    }

.input-help {
    margin: 0 10px;
    font-size: 30px;
    background-color: skyblue;
    color: white;
    border: none;   
    border-radius: 20px;
  }

.output-help {
    margin: 0 10px;
    font-size: 30px;
    background-color: palevioletred;
    color: white;
    border: none;   
    border-radius: 20px;
}

.cnt-help {
    margin: 10px 10px;
    font-size: 30px;
    background-color: green;
    color: white;
    border: none;   
    border-radius: 20px;
}

/* 5 */
.btn-5{
  backface-visibility: hidden;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center; 
  justify-content: center;
  white-space: nowrap;
  border-color: #111;
  color: white;
  /* background: linear-gradient(180deg,#555 0%,#222 49%, #000 51%,#222 100%); */
  border-radius: 5px;
  box-shadow: inset 0px 1px 0px rgba(255,255,255,.5),0px 1px 3px rgba(0,0,0,0.3);
}

/* posco snnc */
.btn-3{
    backface-visibility: hidden;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between; 
    white-space: nowrap;
    border-color: #111;
    color: white;
    border-radius: 5px;
    padding: 0px 5px;
}

/* 5 */
.btn-4{
    backface-visibility: hidden;
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center; 
    justify-content: center;
    white-space: nowrap;
    border-color: #111;
    color: white;
}

p {
    margin: 1px;
    font-size: 2em;
    align-content: center;
}

.p-equip {
    font-size: 2.3em;
}
  
/*Content Main 작업*/
.footer_sum {
    display: grid;
    grid-template-columns: 0.16fr 0.84fr;
}


/*Content Main 작업*/
.content_content {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    grid-template-rows: repeat(1, 1fr); 
    /* border: 1px #46ADEC solid; */
}