body{
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}
img{
    height: 100px;
    width: 150px;
    border: none;
    overflow: none;
    margin-top: 10px;
    background: transparent;
}
.space{
    height: 130px;
}
.space-o{
    height: 200px;
}

.head-bar{
    background: #007bff;
    width: auto;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    left: 0;
    right: 0;
    top: 0;
    position: fixed;
    box-shadow: 0.5px 0.5px px 1px rgba(128, 128, 128, 0.589);
    z-index: 1000;
}
.div-head{
    width: 1400px;
}
.logo{
    color: aliceblue;
    font-weight: bold;
    height: 30px;
    width: 150px;
    text-align: center;
    font-size: 30px;
}
.search-bar{
    /*margin-left: 500px;*/
    text-align: center;
    margin-top: 15px;
}
.search{
    border-style: none;
    padding: 5px 20px;
    border-radius: 10px;
}
.research{
    padding: 5px 0px;
    width: 100px;
    cursor: pointer;
    border-radius: 10px;
}
.content nav{
    height: 270px;
    width: 300px;
    align-items: center;
    text-align: center;
    border-radius: 5px;
    background: rgb(235, 227, 227);
    box-shadow: 0.5px 0.5px 5px 1px rgba(128, 128, 128, 0.589);
}
h2{
    height: 50px;
    width: 100%;

}

.content nav:hover{
    transform: translateY(-10px);
    transition: 0.8s;
    box-shadow: 0.5px 0.5px 10px 1px rgba(20, 102, 226, 0.925);
}

.content nav a input{
    cursor: pointer;
    font-weight: bold;
    width: 150px;
    height: 30px;
    border-radius: 5px;
    border-style: none;
    color: rgb(244, 245, 247);
    background: rgb(0, 174, 255);
}
.content nav a input:hover{
    background: #fff;
    color: rgb(0, 174, 255);
    font-weight: bold;
}
.content{
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    max-width: 100%;
    display: grid;
    gap: 2rem;
    margin: 0 auto; 
}
.container{
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
footer{
    width: 100%;
    height: 50px;
    background: #333;
    align-items: center;
    display: flex;
    justify-content: center;
}
.copyright,a{
    color: #fff;
    text-align: center;
    text-decoration: none;
}
@media screen and (max-width: 1051px) {
    
}
@media screen and (max-width: 542px) {
}
@media (max-width: 500px){
    .search{
        width: 100px;
    }
    .research{
        width: 100px;
        text-align: center;
        padding: none;
    }
}