body{
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    font-family: Arial, Helvetica, sans-serif;
}
.navbar{
    width: 100%;
    height: 80px;
    background-color: rgb(255, 247, 247);
    border-bottom: 1px solid red;
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 4;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
}
a{
    text-decoration: none;
    color: black;
    font-size: 18px;
}
.inputSearch{
    width: 450px;
    height: 30px;
    border-radius: 20px;
    font-size: 16px;
    background-color: #eaf9ff;
}
.navbar > div{
    margin-left: 120px;
}

#dropdownIcon:hover{
    cursor: pointer;
}
#dropdownIcon{
    font-size: 20px;
}
#moreIcon{
    font-size: 26px;
    color: red;
}
.registerBtn{
    background-color: red;
    padding: 10px 30px;
    margin-right: 25px;
    border-radius: 20px;
}
.logoImg{
    width: 120px;
    margin-left: -180px;
    
}

.banner{
    width: 40%;
    height: 100%;
    /* border-bottom-left-radius: 10px;
    border-top-left-radius: 10px; */
}
.introduceBanner{
    /* border: 1px solid blue; */
    height: 600px;
    width: 100%;
    margin-top: 80px;
    background-color: rgb(132, 248, 248);
 
}
.banner2{
    margin-bottom: 140px;
    margin-left: 440px;
}
#bellNotify{
    font-size: 22px;
    border-radius: 50%;
    border: 2px solid rgb(156, 139, 139);
    padding: 5px;
    color: rgba(43, 45, 40, 0.658);
    cursor: pointer;
}
.dropBtn{
    font-size: 16px;
    border: none;
    outline: none;
    color: black;
    padding: 14px 16px;
    background-color: inherit;
    margin: 0; 
}
.dropdownContent{
    display: none;
    position: absolute;
    width: 100%;
    left: 500px;
  }
.topic:hover .dropdownContent{
    display: block;
}
.column {
    float: left;
    width: 120px;
    padding: 1px 10px;
    background-color: #e1f3f2;
    height: 280px;
  }
  
  /* Style links inside the columns */
  .column a {
    float: none;
    color: black;
    padding: 4px;
    text-decoration: none;
    display: block;
    text-align: left;
    
  }
  
  /* Add a background color on hover */
  .column a:hover {
    color: blue;
    
  }
  /* Clear floats after the columns */
.row:after {
    content: "";
    display: table;
    clear: both;
  }
li{
    list-style: none;
    line-height: 2;
}
.row{
    border-radius: 5px;
}
/* .columns{
    display: grid;
    grid-template-columns: 200px 200px;
    grid-template-rows: 40px 40px 40px 40px 40px;
    margin-left: 200px;
    grid-gap: 60px;
} */
.columnft{
    width: 100%;
    height: 140px;
    border: 1px solid black;
    background-color: antiquewhite;
    position: relative;
}
.logoFt{
    width: 120px;
    margin-top: -20px;
}
.fa-brands, .fa-solid{
    font-size: 30px;
}
.social{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}
.textIcon{
    position: absolute;
    top: 60px;
    left: 680px;
}
footer{
    position: static;
}
#learnTopic{
    border-bottom-left-radius: 10px;
    border-top-left-radius: 10px;
    padding-left: 30px;
}
#practice{
    border-bottom-right-radius: 10px;
    border-top-right-radius: 10px;
    padding-left: 50px;
    padding-right: -30px;
}