styles.css

* {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: bold;
}

body {
    background-color: #e7eeef;
}

header {
    display: flex;
    justify-content: space-between;
    box-sizing: border-box;
    align-items: center;
    width: 100%;
    height: 55px;
    background: #39424e;
}

.logo {
    display: flex;
    font-size: 26px;
    color: white;
    margin-left: 100px;
}

.logo img {
    width: 15px;
    align-items: center;
}

.items {
    display: flex;
    list-style-type: none;
}

.items li a {
    color: white;
    text-decoration: none;
    border-radius: 20px;
    padding: 4px 5px;
    margin: 0px 30px;
}

.items li a:hover {
    cursor: pointer;
    color: #088837;
    background-color: white;
}

.buttons {
    margin-right: 100px;
    display: flex;
}

#signup button {
    font-size: 15px;
    color: white;
    border: 2px solid #252a32;
    background-color: #303741;
    padding: 10px 10px;
    margin: 0px 10px;
    font-family: SourceCodePro, monaco, Courier, monospace;
}

#login button {
    font-size: 15px;
    color: white;
    border: 2px solid #088837;
    background-color: #29b35b;
    padding: 10px 10px;
    margin: 0px 10px;
    font-family: SourceCodePro, monaco, Courier, monospace;
}

#signup button:hover {
    cursor: pointer;
    background-color: #4e5155;
}

#login button:hover {
    cursor: pointer;
    background-color: #5fca86;
}

.block1 {
    padding: 10px;
    margin-left: 0px;
    background: white;
}

.block1 p {
    padding: 10px;
    margin-left: 80px;
    font-size: 13px;
    font-weight: normal;
    color: #738f93;
}

.block1 h1 {
    padding: 5px;
    margin-left: 83px;
    font-size: 25px;
}

.block2 {
    padding: 10px;
    margin-left: 0px;
}

.block2 h2 {
    margin-left: 83px;
    font-size: 20px;
    margin: 30px 85px;
}

.block2blks {
    display: flex;
    justify-content: space-between;
    box-sizing: border-box;
    align-items: center;
    margin: 0px 83px;
}

#blk {
    width: 45%;
    background-color: white;
    padding: 20px;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

#blk p {
    padding: 10px;
    font-size: 13px;
    font-weight: normal;
    color: #738f93;
}

#blk h3 {
    font-size: 30px;
    padding: 10px 10px;
}

#blkbtn1 button {
    font-size: 20px;
    color: white;
    border: 2px solid #088837;
    background-color: #29b35b;
    padding: 15px 20px;
    margin: 10px 10px;
}

#blkbtn2 button {
    font-size: 20px;
    color: #088837;
    border: 2px solid #088837;
    background-color: white;
    padding: 15px 20px;
    margin: 10px 10px;
}

#blkbtn1 button:hover {
    cursor: pointer;
    color: #088837;
    border: 2px solid #088837;
    background-color: white;
    box-shadow: rgba(79, 79, 83, 0.2) 0px 7px 29px 0px;
}

#blkbtn2 button:hover {
    color: white;
    border: 2px solid #088837;
    background-color: #29b35b;
    cursor: pointer;
    box-shadow: rgba(79, 79, 83, 0.2) 0px 7px 29px 0px;
}

.block3 {
    padding: 10px;
    margin-left: 0px;
}

.block3 h2 {
    margin-left: 83px;
    font-size: 20px;
    margin: 30px 85px;
}

.block3blks {
    display: flex;
    justify-content: space-between;
    box-sizing: border-box;
    align-items: center;
    margin: 0px 83px;
}

#blk3 {
    width: 28%;
    background-color: white;
    padding: 20px;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

#blk3_1 {
    color: white;
    width: 28%;
    background-color: #0e141e;
    padding: 15px 20px;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

#blk3 h3 {
    font-size: 25px;
    padding: 10px 10px;
}

#blk3_1 h3 {
    font-size: 20px;
    padding: 10px 10px;
}

#blk3_1 p {
    font-size: 15px;
    padding: 5px 10px;
    font-weight: normal;
}

#blk3btn1 button {
    font-size: 15px;
    color: #088837;
    border: 2px solid #088837;
    background-color: white;
    padding: 10px 15px;
    margin: 35px 10px 10px 10px;
}

#blk3btn3 button {
    font-size: 15px;
    color: #0e141e;
    border: 2px solid #0e141e;
    background-color: white;
    padding: 10px 15px;
    margin: 8px 10px 8px 10px;
}

#blk3btn1 button:hover {
    cursor: pointer;
    box-shadow: rgba(79, 79, 83, 0.2) 0px 7px 29px 0px;
    color: white;
    border: 2px solid #088837;
    background-color: #29b35b;
}

#blk3btn3 button:hover {
    cursor: pointer;
    box-shadow: rgba(79, 79, 83, 0.2) 0px 7px 29px 0px;
    color: #29b35b;
    border: 2px solid #088837;
}

.block4 {
    padding: 10px;
    margin-left: 0px;
}

.block4 h2 {
    margin-left: 83px;
    font-size: 20px;
    margin: 30px 85px;
}

.block4blks {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    box-sizing: border-box;
    align-items: center;
    margin: 0px 83px;
}

#blk4 {
    width: 33.33%;
    background-color: white;
    padding: 0px;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

#blk4 h3 {
    font-size: 20px;
    padding: 20px 20px;
}

#blk4 :hover {
    box-shadow: rgba(79, 79, 83, 0.2) 0px 7px 29px 0px;
}