p {
    text-align: center;
}

.c1 {
    font-weight: bold;
    text-align: center;
}
.c1 p {
    margin: 0 auto;
    width: 560px;
    background-color: aquamarine;
    font-weight: bold;
}
.c1 a img {
    border: none;
}

.c2 {
    margin: 0 auto;
    width: 560px;
    background: skyblue;
    font-size: 16px;
    line-height: 24px;
    text-align: left;
}

.c2 img {
    margin-left: 10px;
}

.c3 {
    margin: 0 auto;
    width: 560px;
    font-size: 16px;
    line-height: 24px;
}
.c3 img {
    max-width: 100%;
    height: auto;
}
.c3 table {
    width: 100%;
    border-collapse: collapse;
    margin: 1em auto;
}
.c3 td {
    border: 1px solid #ccc;
    background-color: aquamarine;
    text-align: center;
    padding: 1em;
}
.c3 th {
    text-align: center;
}  
.c3 textarea {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    height: 100px;
}

.c4 {
    margin: 0 auto;
    width: 560px;
    font-size: 16px;
    line-height: 24px;
}
.c4 table {
    width: 100%;
    border-collapse: collapse;
    margin: 1em auto;
}
.c4 td {
    border-bottom: 1px dotted #ccc;
    padding: 1px 2px; 
    text-align: left;
}
.c4 td img {
    text-align: left;
    padding: 4px 2px 1px 2px; 
}  

.c5 {
    margin: 0 auto;
    color: white;
    padding: 18px;
    width: 560px;
    height: 24px;
    background: steelblue;
    font-size: 28px;
    line-height: 24px;
    text-align: center;
}

@media screen and (max-width: 640px) {
    .c1 p {
       width: 320px;
    }
    .c1 iframe {
       width: 320px;
       height: 180px;
    }
    .c1 img {
      margin-left: 10px;
    }

    .c2 {
      width: 320px;
    }

    .c3 {
      width: 320px;
    }

    .c4 {
      width: 320px;
    }

    .c5 {
      width: 320px;
    }
}