test_project/src/App.scss

@import "~bootstrap/scss/bootstrap";
html,body {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    height: 100%;

    button {
        background: #002f34;
        color: white;
        font-weight: 500;
        border: 2px solid #002f34;
        border-radius: 5px;
        padding: 10px 30px;
    }
    button:hover {
        color: #002f34;
        background: white;
    }
}

.Navbar {
    background: #002f34;
    display: flex;

    .header {
        img {
            width: 20%;
        }

        #basic-navbar-nav {
            display: flex;
            justify-content: end;

            a {
                color: white;
                text-decoration: none;

            }

            a:hover {
                margin-top: 1px ;
            }
        }
    }
    
}

.divLogin {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    input {
        width: 200px;
    }
    .login-container {
        display: flex;
        flex-direction: column;
        position: relative;

        a {
            text-decoration: none;
            color:black;
            font-size: 18px;
        }
        a:hover {
            background-color: #002f34;
            color: white;
        }
    }
    .pwd-container {
        display: flex;
        flex-direction: column;
        position: relative;
        img {
            position: absolute;
            cursor: pointer;
            width: 12%;
            top: 50%;
            left: 85%;
        }
    }
}

.divSign {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    .login-container {
        display: flex;
        flex-direction: column;
    }
    .pwd-container1 {
        display: flex;
        flex-direction: column;
        position: relative;
    }
    .pwd-container2 {
        display: flex;
        flex-direction: column;
        position: relative;
    }
    img {
        position: absolute;
        cursor: pointer;
        width: 12%;
        top: 50%;
        left: 85%;
    }
}

.ad {
    display: flex;
    flex-direction: row;
    align-items: center;
    margin: 10px auto;
    border : 1px solid white;
    border-radius: 15px;
    background-color: whitesmoke;
    padding: 10px;
    overflow-x: hidden;
    img {
        max-width: 200px;
        min-width: 200px;
        max-height: 300px;
        min-height: 150px;
        padding-left: 0px;
        border: 0;
    }

    a {
        text-decoration: none;
        color:black;
        font-size: 25px;
    }
    a:hover {
        background-color: #002f34;
        color: white;
    }
}

.adone {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.post {
    margin-top: 25px;
    padding: 25px 15px;
    background-color: whitesmoke;
    border-radius: 15px;
}

.profile {
    img {
        width: 20vh;
        height: 20vh;
        border-radius: 50%;
    }
}

.loader {
    position: absolute;
    top: 40%;
    left: calc(50% - 80px);
    display: flex;
    justify-content: center;
    align-items: center;
    .lds-ring {
        position: relative;
        width: 80px;
        height: 80px;
      }
      .lds-ring div {
        box-sizing: border-box;
        display: block;
        position: absolute;
        width: 64px;
        height: 64px;
        margin: 8px;
        border: 8px solid #cef;
        border-radius: 50%;
        animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
        border-color: #002f34 transparent transparent transparent;
      }
      .lds-ring div:nth-child(1) {
        animation-delay: -0.45s;
      }
      .lds-ring div:nth-child(2) {
        animation-delay: -0.3s;
      }
      .lds-ring div:nth-child(3) {
        animation-delay: -0.15s;
      }
      @keyframes lds-ring {
        0% {
          transform: rotate(0deg);
        }
        100% {
          transform: rotate(360deg);
        }
    }
}
.foter__indent {
    min-height: 150px;
}

footer {
    background: #002f34;
    color: white;
    padding-top: 25px;
    a {
        color: white;
        text-decoration: none;
    }
}